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...