Antenna design jobs

Hi! Looking for an experienced KiCad PCB designer to take a partially-spec'd stepper motor controller from a paper concept to a manufactured-ready package. This is a serious path-to-product board, not a quick prototype — I want it done right. The board, in brief: MCU: u-blox NORA-W106-10B (ESP32-S3R8 module with PCB antenna) Motor driver: DRV8834 in HTSSOP-28 (bare IC with sense resistors and VREF divider, not a Pololu carrier) Power: USB-C primary (with proper 5.1k CC pull-downs for 5V/3A) + optional auxiliary 5V via JST-PH, Schottky-OR'd to common 5V rail, step-down to 3.3V for logic Sensors: Two Hall sensor inputs — one via external JST-PH connector, one on-board SMT (open-drain), for A/B testing HMI: RGB LED, LED_BUILTIN, two power-good LEDs, RESET + BOOT ...

I am developing a research-grade, dual linearly polarised antenna centred at 9.375 GHz for use exclusively in an indoor laboratory environment. The key performance target is a cross-polarisation level better than –35 dB across the antenna’s operational bandwidth. Your task is to carry the design from initial concept through full-wave simulation and hand over everything I need to fabricate and evaluate the unit in-house. Deliverables • Detailed electrical and mechanical model (HFSS or CST native files, plus STEP/DXF for machining or PCB fabrication) • Simulation reports covering S-parameters, radiation patterns, and cross-polarisation isolation, all referenced to 50 Ω ports • Manufacturing drawings, BOM, and connector/feeding instruct...

...communication. Current objective: We are NOT looking for cloud development right now. We are looking for an RF / embedded hardware expert who can guide us in prototype-stage development. Scope of work: * Review our current wireless product concept * Advise on transmitter and receiver architecture * Guide us on 433 MHz / sub-GHz RF approach * Help in prototype PCB strategy for testing * Guide on antenna placement, range validation, and communication reliability in multi-floor residential buildings * Help us with practical next steps for prototype and testing * If suitable, support further in firmware/hardware decisions Important: * This is mainly a residential/building-use product in the first phase * We already have an existing working wired controller and tank sensors * Our...

...interfaces on Orange Pi Zero 2 must remain usable: o Gigabit Ethernet (RJ45) if possible. o Wi Fi + Bluetooth (onboard radio, keep antenna performance in mind). o USB 2.0 ports (at least one host exposed, others via headers if needed). o 26 pin header: I²C, SPI, UART, GPIO. o 13 pin header: USB, audio/TV-out, IR, extra GPIO (either directly or via mezzanine/adapter). o Debug UART access. Cellular connectivity • LTE modem: equivalent LTE Cat 1/Cat M/NB IoT module. • eSIM support: o On board eSIM chip (MFF2 package) connected to the modem. o Optional footprint for nano SIM as backup is a nice extra. • LTE antenna: o At least one main LTE antenna via / MHF4 to external antenna with 3m cable length o Ground plane and keep out around RF traces...

I am looking for a professional RF / antenna engineer who can mentor me in practical antenna simulation and implementation workflows. I am an RF engineer myself in aerospace, but I have not used EM simulation tools deeply for some time, so I want to rebuild my antenna simulation skills from the ground up in a structured and professional way. My goal is not just to learn which buttons to press in HFSS/CST, but to understand the full engineering workflow: antenna requirements, antenna type selection, geometry, materials, ports, boundaries, mesh/convergence, S-parameters, radiation patterns, gain, efficiency, tuning, optimization, and final technical reporting. I am interested in practical antenna examples that can be connected to real engineeri...

I'm looking for an experienced antenna designer to create a Yagi antenna for both HF and VHF bands, specifically for amateur radio use. Requirements: - Coverage of both HF (3-30 MHz) and VHF (30-300 MHz) bands - Yagi design expertise - Knowledge of amateur radio needs and regulations - Ability to optimize for gain, directivity, and impedance matching Ideal Skills: - Antenna design experience - Proficiency in RF engineering - Experience with simulation software (e.g., EZNEC, MMANA) - Strong understanding of amateur radio applications and requirements Please provide a portfolio with relevant experience and designs.

...clean, fully-parametric Fusion 360 file that breaks the controller into logical bodies and components (top and bottom shells, buttons, D-pad, bumpers, triggers, etc.). • Model functional analog sticks with realistic gimbal housings. • Reserve internal space and mounting features for a rechargeable battery pack and the electronic board that supports wireless connectivity (USB-C charge port, antenna cavity, small PCB standoffs). • All fastening schemes—screw bosses, clips, or snap-fits—should be present so the assembly can be 3D-printed or tooled later with minimal revision. • Finish with high-resolution renders (key hero shot, top/side views, and a neat exploded view) directly from Fusion 360’s Renderer or an external path trace plugin...

...started some routing. I just need someone to finish the PCB layout, complete the routing, and prepare the files for manufacturing. The board is small and portable, but it includes a few wireless/radio modules, so experience with RF/module-based layouts would be useful. **Scope:** * Review the existing placement and improve it where needed * Complete the routing in EasyEDA * Pay attention to antenna keep-outs and basic RF layout practices * Clean up the layout and run DRC * Prepare the manufacturing/assembly files: Gerbers, drill files, BOM, and CPL/pick-and-place * Flag any layout concerns before final release **Requirements:** * EasyEDA experience * Experience with small embedded/IoT boards * Experience with wireless modules or multi-radio boards * Able to work from an exis...

I need a complete design with test prototype units for an economical, antenna-integrated UHF RFID module that can reliably read any kind of UHF tag at 6–10 m, indoors or outdoors, while handling dense tag populations through anti-collision. Scope of work • Select a low-cost yet robust UHF chipset and design the matching network, power regulation and control interface around it. • Integrate a compact broadband antenna directly on the same board and tune the whole RF path so that the target read range is met without external tuning components. • Optimise firmware or register settings for fast anti-collision, EPC Gen2 compliance and low power consumption. • Provide a full package: schematic, PCB and antenna layout (Gerber...

I have a wireless-power-transfer concept that hinges on a well-tuned antenna, and I want to prove its performance inside CST Studio Suite through a full electromagnetic simulation. The goal is clear: design, simulate, and refine the antenna until the S-parameters, gain, and efficiency meet the power-transfer targets I will share once we start. You will start from my rough dimensions and operating frequency, build a clean 3D model in CST, run the frequency-domain solver, and iterate the geometry or matching network as needed. Along the way, I expect you to explain the choices you make—material settings, boundary conditions, mesh strategy—so I can replicate or adjust the work later. Deliverables • CST project file with all simulations completed &bu...

...jumper wires) JLCPCB/JLCPCB PCBA compatible Reliable design suitable for production Important: I already have working firmware completed GPIO compatibility with existing firmware is preferred Cost optimisation is very important Open to professional suggestions regarding regulators, layout, display choices, enclosure improvements, manufacturing optimisation, etc. Deliverables required: Schematic source + PDF PCB source files Gerbers BOM with LCSC/JLCPCB parts CPL/pick-and-place files 3D renders GPIO pinout summary STL enclosure files STEP/3MF enclosure source if possible Design goals: Compact and clean Professional appearance Suitable for wall mounting Easy USB-C access Clearly marked NFC scan area Reliable WiFi performance Proper ESP32 antenna keep-out Easy as...

...specifications of the STREGA valve to ensure your sketches are accurate. 4. Our corporate web site is 5. the product datasheet (PLEASE READ IT before starting !!!!): NOTE 1: DO NOT ALTER OUR CORPORATE LOGO !!!! NOTE 2: the product consists in two parts: the STREGA valve actuator enclosure and the valve: do not add an antenna on the valve, that makes no sense... NOTE 3: we ask for 3 slides only. NOTE 4: Please read our datasheet prior to start (even if you're not understanding everything....) --------------------- WE WILL REJECT ALL PROPOSALS THAT ARE NOT USING OUR LOGO ----------------------------- ---------------------- WE WILL REJECT ALL PROPOSALS THAT IS NOT SHOWING THE TWO PARTS OF OUR SOLUTION (valve and actuator)

I’m putting together an embodied reference design for a prototype and need a clear, engineer-ready specification that details every piece of the stack. This design will revolve around an ESP32, so pin-mapping, power requirements, and proven libraries for that MCU must be at the core of the document. The spec should cover: • Microcontroller: full ESP32 variant comparison and the one you recommend for low-power, Bluetooth + Wi-Fi operation. • Sensors: shortlist options for IMU, proximity, and environmental monitoring, with interface diagrams and suggested part numbers. • Communication module: outline how we’ll leverage the ESP32’s native radios, plus any external antenna or module considerations for extended range. • Mecha...

...and RING must be protected and level-safe for the ESP32-S3’s 3.3 V GPIO. - Include ESD protection, current limiting, and appropriate open-drain/open-collector style line conditioning. - The design must avoid damaging either the TI-84 or ESP32-S3 if the cable is plugged/unplugged during operation. Camera and Module Integration - Mount or connect the Seeed XIAO ESP32-S3 Sense cleanly. - Preserve camera operation and image reliability. - Keep camera and Wi-Fi power stability in mind during layout. - Avoid blocking the ESP32-S3 antenna area and follow antenna keepout guidance. Form Factor and Assembly - Design for a minimal calculator-back-shell-friendly footprint. - Use hand-assembly-tolerant components where practical. - Provide clear silkscreen labels ...

...charging, status indication, buzzer alert, and PWM-based servo actuation into a single 2-layer PCB. The design should be based on an ESP32-WROOM module, not an ESP32 development board. The onboard sensor should be the MPU6050 IMU, as the existing firmware and ML model are built around this sensor. The board should also include a servo output for parachute deployment, a loud buzzer, a main power switch, battery input, onboard single-cell Li-ion/LiPo charging and protection, USB Type-C programming/debugging, and required LEDs. Maximum board size: 80 mm × 80 mm. The board should be kept as compact as realistically possible while preserving reliable routing, power stability, ESP32 antenna clearance, and separation between noisy servo/power sections and the IMU. Requir...

...location tracking, so LTE-M / NB-IoT with embedded eSIM support for Jio / Airtel and a GNSS solution that delivers standard 5–10 m accuracy are required. The device must perform reliably both indoors and outdoors. Key elements you will integrate: • Cellular: LTE-M / NB-IoT modem with eSIM footprint pre-provisioned for Indian networks. • Positioning: GNSS (GPS + GLONASS) with a chip or flex PCB antenna that fits the size envelope. • Sensing: MEMS microphone capable of local audio recording to at least 128 MB on-board flash, plus an accelerometer for motion events. • User input: Single, double, and triple-press button detection implemented in hardware with clean debounce. • Power: Li-Po management, magnetic charging pads, and a deep-sleep regime that...

PROJECT BRIEF: CAD Design & 3D Enclosure for “Aria Sicura SafeAir Guardian” Project Title: Premium Wall-Mounted Gas Safety Device – Complete Industrial Design & 3D CAD Modeling 1. Project Overview I need a professional, production-ready CAD design for the enclosure of a residential gas safety device. The product is wall-mounted, has a modern premium look, and must properly house all internal electronics. Reference Image: (Attach the photo of the silver device with the glowing display that you sent me) 2. Key Dimensions PCB Specifications: • Exact size: 157 mm (length) × 97 mm (width) × 1.6 mm thickness (green 4-layer PCB) Recommended External Dimensions: • Height: 168 – 172 mm • Width: 108 – 112 mm &bu...

...who can take a raw concept for a new mobile-telecom tower and turn it into a fully engineered design package. The priority is twofold: 1. Shape the structural concept into a safe, build-ready solution. 2. Produce complete architectural and structural drawings—layouts, elevations, sections, connection details, and any supporting calculations—that a contractor and permitting authority can rely on. I already have the site specifics, antenna loading data, and a basic height requirement; what is missing is your professional touch in transforming these inputs into precise blueprints. AutoCAD or Revit files in both editable and PDF formats will be the final deliverables, accompanied by a concise design brief explaining the key assumptions and load paths...

...motors, or inner mechanisms, just an accurate, clearly readable representation that engineers can reference during discussions and hand-offs. Here is what I need from you: • Model the tower in 3D directly from the supplied 2D CAD/PDF references, keeping dimensions and proportions true to spec. • Apply realistic materials, lighting, and subtle camera movement so viewers quickly grasp height, antenna placement, and support bracing without cinematic flourishes that distract from the information. • Produce a short, smooth walkthrough or turntable sequence (MP4 or MOV, 1080p) plus the native project file (Blender, 3ds Max, Maya—whichever you prefer) for future edits. • Include a few high-resolution still renders suitable for slide decks. Accepta...

Currently we use XIAO ESP32C6 ( ) with Wio-SX1262 () . Basically we need ESP32C6 with LoRa sx1262. Only changes we need are more memory , AC/DC converter and buttons. System Requirements MCU: ES...Interface: USB‑C, same approach as the Seeed XIAO — using the native USB of the ESP32‑C6 (no external USB‑UART bridge required). Interfaces: 1 or 2 × I²C (1 or to pairs of SDA/SCL exposed on connectors). 3v3 and GND to power up sensors (1 or 2 pairs ) Buttons 1 or 2 buttons we can program. PCB Dimensions: 25 mm × 55 mm (probably PCB will be bigger. it is ok) 25 x 55 is ideal. RF: On‑board antenna, e.g., Ignion Trio (multiband, but used here for 868 MHz).

...processing is essential. Off-the-shelf evaluation boards or turnkey kits will not meet our needs—we have to build the hardware from the ground up. Re-using or adapting open-source material on the software side is welcome, and I am open to AI-assisted techniques for algorithm design or UI generation, as long as the end product remains fully traceable and maintainable. Scope of work • Design and prototype the RF front-end and signal-processing chain, tuned for 10.5 GHz Pulse-LFM operation. • Engineer a compact phased-array antenna that delivers the required beam-steering accuracy and gain. • Develop control and data-processing software that includes:  – object detection and multi-target tracking algorithms,  – a li...

I need a dual-polarized, cross-polarized antenna specifically for telecommunications in the microwave frequency range (3 GHz - 30 GHz) with circular polarization. Key Requirements: - Design for microwave frequencies - Support for dual and cross polarization - Circular polarization capability Ideal Skills and Experience: - Expertise in antenna design for microwave frequencies - Experience with dual and cross-polarized antenna systems - Proficiency in circular polarization techniques Please include relevant experience in your bids.

...accurate visible light readings for the room. Project Overview I am seeking a senior hardware engineer to design a professional, 4-layer, double-sided PCB for a high-performance travel IoT device. This device acts as an IR blaster, local AI audio monitor (for volume/occupancy), and environmental sensor. Completion Criteria: This is a turnkey electrical project. The project is considered complete only after I have physically tested the manufactured boards and validated that all sensors, voice features, and power circuits work as specified. Core Hardware Specifications MCU: ESP32-S3-WROOM-1U-N16R8 (16MB Flash / 8MB PSRAM). Antenna: connector for external flex-film antenna. Dimensions: Strict 18mm x 35mm footprint. Storage: Molex 104031-0811 MicroSD socket (P...

I’m looking for an experienced COMSOL user who can build and fine-tune an Electromagnetics simulation from the ground up. The specific application and performance targets will be ...or extend the study myself. I have access to the latest COMSOL licence, so you’re free to take advantage of features such as parametric sweeps, frequency-domain studies, or built-in post-processing tools as you see fit. Solid understanding of Maxwell equations in COMSOL, meshing best practices, and result validation is essential. If you’ve tackled similar Electromagnetics problems before—antenna design, electrostatics, wave propagation or otherwise—please let me know; that background will help us hit the ground running. Looking forward to working together and gettin...

PROJECT DESCRIPTION: I need a KiCad PCB designer to create three RFID antenna boards from scratch and deliver verified, JLCPCB-ready Gerber files. No existing files will be provided. The designer must create everything in KiCad based on the specifications below. These are rectangular spiral RFID reader antennas operating at 13.56 MHz (ISO 15693 protocol), used in a poker chip tracking system. Each board has a copper spiral on the front layer (), a single return trace on the back layer (), one SMA edge-launch connector, and one SMD tuning capacitor. BOARD 1 — SEAT ANTENNA ParameterValueBoard size210 × 210 mmLayers2 ( + )PCB thickness1.6mm FR4Spiral turns5Track width2.5mmGap between tracks0.5mmOutermost turn200 × 200mm center to centerTuning capacitor14pF, SM...

...like Upwork, Fiverr, or Freelancer.com. Project Title: Hardware Design (Schematic & PCB Layout) for Ultra-Low Power BLE Motion Sensor (nRF52810) Project Description: I am looking for an experienced electronics design engineer with a background in Nordic Semiconductor SoCs to develop a compact, high-efficiency PCB for a motion-tracking sensor node. Hardware Requirements: MCU: Nordic nRF52810 (BLE 5.0 SoC). Sensor: STMicroelectronics LIS2DW12 (3-axis accelerometer, ultra-low power). Memory: Winbond W25Q512 (512Mb SPI Flash) to store 15 days of data at 6Hz. Power Source: CR2032 Coin Cell Battery (Design must be optimized for low peak current/high internal resistance). Antenna: Integrated PCB Trace Antenna or Ceramic Chip Antenna (with i...

PROJECT DESCRIPTION: I need a KiCad PCB designer to create three RFID antenna boards from scratch and deliver verified, JLCPCB-ready Gerber files. No existing files will be provided. The designer must create everything in KiCad based on the specifications below. These are rectangular spiral RFID reader antennas operating at 13.56 MHz (ISO 15693 protocol), used in a poker chip tracking system. Each board has a copper spiral on the front layer (), a single return trace on the back layer (), one SMA edge-launch connector, and one SMD tuning capacitor. BOARD 1 — SEAT ANTENNA ParameterValueBoard size210 × 210 mmLayers2 ( + )PCB thickness1.6mm FR4Spiral turns5Track width2.5mmGap between tracks0.5mmOutermost turn200 × 200mm center to centerTuning capacitor14pF, SM...

I am looking for a Mechanical Engineer to support the development and improvement of an antenna system. The scope includes: • Mechanical design improvements without compromising RF performance • Easier installation and reduced on-site complexity • Improved dismantling and maintenance accessibility • Better handling, transportation, and logistics support • Structural optimization, fabrication improvements, and manufacturability • Working based on the latest revised antenna design files • Providing technical justification for proposed improvements Experience in antenna systems, telecom, RF equipment, or outdoor systems is a plus.

PROJECT DESCRIPTION: I need a KiCad PCB designer to create three RFID antenna boards from scratch and deliver verified, JLCPCB-ready Gerber files. No existing files will be provided. The designer must create everything in KiCad based on the specifications below. These are rectangular spiral RFID reader antennas operating at 13.56 MHz (ISO 15693 protocol), used in a poker chip tracking system. Each board has a copper spiral on the front layer (), a single return trace on the back layer (), one SMA edge-launch connector, and one SMD tuning capacitor. BOARD 1 — SEAT ANTENNA ParameterValueBoard size210 × 210 mmLayers2 ( + )PCB thickness1.6mm FR4Spiral turns5Track width2.5mmGap between tracks0.5mmOutermost turn200 × 200mm center to centerTuning capacitor14pF, SM...

...reliability in rain, dust, and fluctuating temperatures, as well as consistent tag reads over moderate distances. Here’s what I expect: • A short call (or concise written brief) to clarify the environmental constraints, read-range targets, tag volumes, and power/network options I have available. • A ranked list of commercially available readers—UHF/HF as appropriate—with key specs (IP rating, antenna options, supported protocols, connectivity, power requirements, and indicative pricing). • Rationale for each recommendation, highlighting why it fits an outdoor tracking scenario better than other models. • Supplier or distributor links so I can source the units quickly. Acceptance criteria: Your recommendations must reference real, cur...

Location: Must currently be in Guyana Job Description: We are looking for someone currently located in Guyana who has access to a television and have antenna TV using the local national TV platform (NCN Guyana). The task involves verifying specific TV channels on the platform. This is a simple verification task. Detailed instructions will be provided after hiring. Task Overview: • Check the channel list on the TV platform • Confirm whether the specified channels is available • Record short video clips as proof Requirements: • Must currently live in Guyana • Have access to antenna TV that can receive the NCN Guyana service • Able to follow instructions and submit files on time

I'm seeking an experienced professional engineer to create drawing of a broadcast antenna for FM radio on a tower between 366 feet high. Key Requirements: - Expertise in radio broadcast antenna installation, specifically for FM frequencies. - documents will be used for a building permit in St. Lucie County, Florida. Ideal Skills and Experience: - Background in telecommunications or a related field. - Previous projects involving antenna installation. - Problem-solving skills for potential on-site challenges. Please provide examples of similar work done and relevant certifications.

I’m building and testing a 3.5 GHz microstrip antenna prototype and need a Kapton (polyimide) sheet that meets these physical requirements: • Thickness close to 1.6 mm (thinner is acceptable) • Footprint around 8 × 30 cm—smaller pieces will work if they’re uniform • Copper-clad on one side is preferred, yet I can work with a plain sheet if that is what you can source Because this is for prototyping, consistent quality is vital. The sheet must retain the classic Kapton strengths I rely on—excellent heat resistance, good flexibility, and overall durability—so please confirm those characteristics in your response. Deliverables I need from you: 1. Quotation that includes unit price, any minimum order quantity, and shipping cost t...

I’m ready to move my microstrip patch antenna design into production and need a shop that can build prototypes on two distinct substrates: • Copper-clad polyimide (Kapton) – 0.127 mm, kept fully flexible after etching • FR-4 – 0.2 mm, standard rigid board Because I selected Both in the substrate options, I need each version produced to the same RF-grade accuracy. Please let me know: 1. Whether your line can handle flexible Kapton as confidently as FR-4, including any special tooling or process controls you employ. 2. Itemised pricing for low-volume runs on each substrate. 3. Typical lead time from Gerber release to outbound shipment. 4. A short overview of your fabrication and inspection facilities (LDI, controlled-depth etch, AOI, imped...

...unit with GaN power amplifiers, digital pre‑distortion, filtering, and protection — converting digital IQ samples into clean, powerful RF. The precision skeleton: a GNSS‑locked timing fabric (PTP/SyncE) that synchronises every bit and every beam to within nanoseconds. The transport arteries: fibre fronthaul (eCPRI), midhaul (F1), and backhaul (N2/N3) linking RU to DU to CU to Core. The antenna face: active antenna arrays or sector panels that shape and steer energy to users, with PIM‑rated connectors, grounding, and lightning protection. The energy heart: a rugged AC/DC power plant with rectifiers, battery backup, and surge protection, designed for the extreme heat, dust, and salt of the Saudi environment. The watchful eye: an end‑to‑end management, security, and law...

I need a complete design for a flexible, wearable microstrip patch antenna that operates reliably across the sub-6 GHz spectrum for communication devices. My chief concern is bandwidth: the final geometry, substrate choice, and feed configuration must maximise usable bandwidth while keeping return loss below –10 dB over the targeted range. Here is what I expect: • A simulation-validated design file ( CST ) showing S-parameters, radiation pattern, and realised gain. • Clear documentation of substrate stack-up and bending radius limits so the antenna maintains performance when worn. • A concise fabrication guide and, if possible, suggested vendors or processes for producing flexible prototypes. Please attach a detailed project prop...

...audio player. I have a completed PCB design and a clear aesthetic reference image. The goal of this project is to produce a **functional, "works-like/looks-like" prototype** for a Kickstarter campaign. While this version does not need to be fully DFM-optimized for injection molding yet, it must be designed with tight tolerances for 3D printing (SLA/SLS) and assembly. ### Technical Requirements * **PCB Integration:** You will be provided with the PCB CAD files (STEP/DXF). The enclosure must perfectly house the board, including precise alignments for the ESP32-based architecture, I2S audio components, and power management. * **External Features:** The design includes a speaker grill, a small OLED display bezel, physical buttons, side controls, and an antenna...

ESP32-C5 Plug-and-Play Board - Design Specification 1. Objective Design a base development board using ESP32-C5 with: • Full dev board functionality (like DevKitC-1) • External antenna () support • Extended features: o 16 external buttons (via expander) o 3 WS2812 outputs o buzzer o onboard accelerometer o flexible power input (USB-C / barrel / terminal) • Designed as a plug-and-play activity controller platform 2. Core MCU Section Main Module • ESP32-C5-WROOM-1U Requirements • Follow ESP32-C5 DevKitC-1 schematic as reference • Include: o EN (reset) circuit o BOOT (GPIO strapping) button o proper decoupling capacitors o flash connections (internal to module) USB (Native) • USB Type-C connector • Connect directly to: o GPIO13...

...tag—is positively engaged with the platform’s designated anchor point before power-up and continuously while the boom is in motion. If the reader ever loses that tag signal, the system must raise an immediate audible and visual alert; real-time notification is the single most critical feature for me. Core approach • Detection method: RFID tags embedded in each harness, with a rugged reader/antenna built into or beside the anchor point. • Users and environment: construction workers on dusty, vibration-heavy sites, so the enclosure, connectors, and firmware watchdogs have to be equally tough. • Optional but desirable: a dry-contact output (or CAN/Hydraulic interface) able to interlock the EWP controls when a non-compliant state persists. Data ...

The task is to design, model, and simulate an antenna in MATLAB, extract the key performance metrics (such as S-parameters, radiation pattern, gain, and bandwidth), and then convert the findings into a clear, well-structured technical write-up. I will provide the initial specifications (frequency band, substrate details, and physical constraints) as soon as the project starts. From there, the workflow should cover: • Building a parametric MATLAB script or function that cleanly documents every assumption. • Running simulations that validate impedance matching and radiation characteristics. • Generating publication-quality plots directly from the code—saved in both figure and high-resolution image formats. • Summarising all numerical results ...

...small (32 mm x 20 mm), needing cellular and GNSS antenna traces and clean high-speed digital routing. Our schematic design is completed in-house using Altium Designer and we're now looking to outsource the PCB layout design to a highly-experienced, expert PCB layout engineer with deep RF design experience. The PCB layout design must squeeze a dual-band RF section (700–1600 MHz plus 2.4 GHz) and its matching network onto the same compact PCB that carries the sensors and their digital interface. The total number of components on board is ~200, with ~100 unique manufacturing part IDs. The design uses several BGA components down to 0.3 mm pitch and 0201-sized passives. Here’s what I need from you: • A production-ready PCB l...

The battery terminals on my small co...re-establishing the power path so the remote behaves exactly as before. 4. Optional but welcome: advice on adding reverse-polarity or over-current protection while you’re in there. Acceptance criteria: • Remote powers on and operates all original RF functions with stable voltage. • Physical modification fits within, or attaches cleanly to, the existing housing without interfering with buttons or antenna. • Clear documentation allows a moderately skilled hobbyist with a soldering iron, multimeter, and basic hand tools to replicate the fix. If you’ve rescued small electronics from battery damage before and can turn this around quickly, I’m ready to start right away and will happily leave a detailed, positi...

I need a Fto based transparent compact patch antenna modelled in CST Studio Suite that can efficiently collect ambient RF power across a very wide band. The end use is pure RF energy harvesting, so instead of targeting a narrow communication band I am after the broadest practical frequency coverage you can squeeze out of a single‐layer or multilayer patch structure without driving size or complexity through the roof. Key requirements • Frequency coverage: “RF frequency wideband” – essentially as wide as we can get while keeping reasonable overall dimensions and good impedance matching. Please propose the exact limits you can reach and back them up with simulation data. • Polarisation: I am open to linear, circular or even dual; pick whichever help...

...solar panel and a rechargeable battery pack. Wi-Fi connectivity is mandatory, and every part of the design has to prioritise ultra-low power consumption so the unit can sit in deep-sleep most of the day yet still wake to trigger a miniature solenoid valve on command. Power architecture The board should accept solar input (≈5-6 V) and seamlessly switch to a lithium cell when sunlight is unavailable. Please integrate an MPPT-style charge controller, battery protection, and a low-loss power-path so the ESP32-C6 always sees a stable 3 V3 rail. Current draw during sleep should stay well under 30 µA. Deliverables • Complete schematics (EASEDA) • Clean PCB layout with ground pour, impedance-matched antenna line, and clear silkscreen labelling • BOM wi...

...refine the circuitry for a 4–6-layer stack-up, and optimise the layout for low power, tight space, and signal integrity. Please keep antenna placement and ground-plane strategy top of mind so the wireless link stays clean even inside a small wearable enclosure. I’m comfortable with Altium Designer, KiCad, or Eagle files—choose whichever tool you work fastest in, as long as I receive editable project files. Deliverables • Finalised schematic • Layer stack-up definition • Complete PCB layout (with design rules documented) • Gerber, drill, and pick-and-place files ready for fabrication • Readable Bill of Materials with manufacturer part numbers • Brief design report outlining power budget, RF considerations, a...

...that target I need both the hardware design and the accompanying firmware created with an obsessive focus on nano-amp sleep currents and efficient duty-cycling. Core capabilities • Data logging to internal flash or external EEPROM so records are retained between wake-ups. • LoRa communication only; no Bluetooth or Wi-Fi. The node will periodically wake, send an uplink, accept a downlink if present, and return to deep sleep. • Simple sensor block: one digital interrupt input (e.g., reed switch/pulse counter) plus one digital output that can drive an external load for a short, timed burst. Hardware scope – Complete schematic and BOM for the STM32WL-based board, including optimal power path, reverse-polarity and ESD protection, and a proven antenna...

...Summary of the Research This research focuses on designing a high-gain antenna for 5G communication at 36–38 GHz (millimeter-wave). Since 5G at these frequencies suffers from high signal loss, the study aims to improve signal strength using an efficient antenna design. The proposed solution is a compact stacked slot antenna, which provides: Wide bandwidth (34–44 GHz) Stable radiation pattern (consistent signal in all directions) Minimum gain of ~6 dBi (higher in arrays) To improve performance, the antenna is developed in three stages: Single antenna element – basic design and testing 1×2 array – increases gain by ~2–3 dB 1×4 array – further improves gain (~6 dB increase overall) The study pr...

...reasoning and numerical computation. • Core focus: radiation patterns, basic propagation mechanisms, field strength at given distances, and related formula manipulation. Timeline All workings, answers, and any software outputs must reach me within 5 days of project start so I can review before submission. What I’m looking for When you reply, briefly outline your relevant experience solving antenna and propagation problems—academic, professional, or both. If you routinely use analytical tools (e.g., MATLAB, FEKO) for this kind of work, mention that, though hand-worked solutions are perfectly acceptable here. Deliverable A single PDF (or DOCX) showing each question, your full calculation steps, and the final answers clearly boxed. Graphs or plots, if p...

...key-tag style enclosure, so component height and antenna placement must be considered from the start. I’m flexible on the exact silicon—Nordic, Espressif, STM, Semtech, etc.—as long as you can justify part choice against current draw, cost and global availability. Please take the design from concept through to manufacturing hand-off. Deliverables • Complete schematic and PCB layout (KiCad, Altium, or Eagle) • Verified footprints, stack-up and DRC reports • BOM with alternates that are currently in stock • Gerber/ODB++ files, pick-and-place and assembly drawings • Basic bring-up firmware that confirms Bluetooth advertising, LoRa transmission, GNSS fix and motion interrupt • Design notes on battery life c...

I need a fresh, distinctive logo that feels classic and timeless while still hinting at the modern mix of services our local antenna association offers— internet, streaming, linear TV, and mobile. I am picturing refined lines and balanced typography that will age well across print, web, and on-air idents. Core elements I definitely want to see explored are subtle antenna or signal motifs and tasteful technology cues (for example, a smart-device outline worked into the mark). Beyond that, I am happy for you to steer the creative direction—particularly with colour. Please choose a palette you believe best reinforces a trustworthy yet contemporary spirit; I’m open to anything from muted neutrals to a restrained splash of colour if it strengthens the concept. L...