Antenna design jobs
I am building a tiny GPS tracker device for my company and need an experienced PCB designer. Project Requirements: - Design schematic and PCB layout for a compact GPS tracker. - Use SIM7080G (LTE/NB-IoT with GNSS) module. - Include SIM card slot, GPS antenna connector, LiPo battery connector, and charging circuit. - Board size should be approximately 18 mm x 20 mm. Deliverables: - Complete schematic - PCB layout - Gerber files for manufacturing - Bill of Materials (BOM) - Pick and Place file (optional) Preferred Tools: KiCad, Altium Designer, or EasyEDA. Experience Required: - Experience designing IoT or GPS tracking devices - Knowledge of RF layout and antenna placement Budget: $30 – $50 (negotiable) Please share examples of previous PCB designs.
...single/multiple-turn loop antenna designed and working physical prototype fabricated. The target band is low frequency (LF), and the antenna will be used exclusively for near-field coupling applications. What I’m expecting from you is a complete, start-to-finish service: H-field antenna designed according to specified, fixed dimensions, selection of suitable conductor and core materials (as well as tuning capacitors or ferrite sheets if required), then the actual fabrication of a working custom prototype that I can test using my own setup. Deliverables • Simulation files (HFSS, CST, or similar) showing impedance, Q-factor and coupling coefficient at the target LF band • Manufacturing drawings or Gerber files if a PCB-based loop is the better ap...
I need a full electromagnetic design for a dielectric lens – or a compact horn‑lens combination – that concentrates microwave energy at 2.45 GHz from an existing 1 kW source in a controlled lab/industrial setting. The goal is to maximise the energy delivered to a small focal spot (target ≈ 2–3 cm at a defined distance), so the work must revolve around: Directivity Gain High power‑density focusing at the target spot Please model, optimise and document the antenna‑lens using a recognised 3‑D EM solver such as CST Studio Suite, HFSS, FEKO or similar. I will rely on your simulations to validate return loss, beam pattern, peak gain and the size of the focal region before we commit to fabrication. Deliverables Native simulation project files and export...
PCB Design Requirement Project: BLE to Wi-Fi/Ethernet Gateway Device. The objective of this project is to design a BLE to Cloud Gateway device that integrates: - Nordic nRF52840 (BLE receiver) - HLK7628N Wi-Fi / Ethernet Linux module The device continuously receives BLE packets, forwards them to the HLK7628N through USB, and uploads the data to the cloud over Wi-Fi or Ethernet. When internet connectivity is lost, incoming data will be stored locally on an SD card using a rotational buffer mechanism, and synchronized automatically once connectivity is restored. The design must follow best practices for RF layout, impedance control, EMI mitigation, and grounding, enabling FCC and CE certification. The HLK7628N module and nRF52840 chip are fixed components and mus...
My desktop can only see 2.4 GHz networks, so I want to upgrade its WiFi card to a TP-Link model that supports dual-band (2.4 GHz / 5 GHz) or better—802.11ac or newer. I’m looking for someone who can: • Recommend a compatible TP-Link PCIe or M.2 card for my motherboard’s free slot. • Physically install the card, connect any antenna leads, and tidy the cabling inside the case. • Install the latest TP-Link or Intel-based drivers (Windows 10) and remove the old adapter software if needed. • Update BIOS or change UEFI settings only if required for the new card to be recognized. • Verify that the computer reliably detects and connects to local 5 GHz networks, with speed tests to confirm performance. Please let me know your experience ...
I want a simple two-channel radio link that can do just two things reliably: 1) vary the speed of my brushless DC motor through its ESC (accepts S-Bus or standard PWM) ...or PWM all the way from idle to full. • Instant relay actuation with no missed commands. • Band switch works on the bench; changing it does not require code edits or reflashing—just flip the switch, power cycle, and go. • Clear wiring diagram, parts list, and commented firmware I can compile and flash myself. Please include any recommended modules (e.g., SX1262, NRF24L01, RFM95, etc.), antenna suggestions, and a quick note on enclosure or shielding if it matters. I am comfortable soldering and 3-D printing but need you to hand me tested code and schematics so I can reproduce your res...
Design Brief: High-Reliability Bluetooth Roadbook & Multimedia Controller Project Code: RALLY-MEDIA-V3 Target Platform: PCBA (Automotive / Rugged Environment) 1. Project Vision The goal is to create a high-performance, ultra-compact Bluetooth Low Energy (BLE) controller for motorcycle navigation (Roadbook) and multimedia. The device must replace high-end commercial modules (like Rallyable) with a custom, cost-effective solution that survives the electrical noise and physical vibration of off-road motorcycles. 2. Scope of Work The engineer must provide a complete PCB design (Schematic + Layout) optimized for JLCPCB SMT Assembly Service. Two design paths are considered: Path A (Integrated): Full custom PCB with nRF52840 SoC and tuned antenna. Path B (Carri...
...loads, relays/contactors • Expected ambient: −30°C to +40°C (design margin required) • Inside sealed IP enclosure can rise due to self-heating (design for up to ~+70°C internal with reasonable margin) • Humidity / condensation risk (design choices should be robust) Key Hardware Requirements 1) Power Input – 24V DC Industrial Design must include: • Reverse polarity protection • Input fuse or resettable protection (PTC) + rationale • Surge protection (TVS) sized appropriately for 24V industrial lines • EMI mitigation strategy (input filtering / layout / return paths) • Industrial DC/DC: 24V → 5V (and 3.3V regulation if needed), with thermal headroom • Bulk + local ceramic deco...
I need an experienced RF technician to install antennas on a tower. Key tasks include: - Installing antennas securely and correctly on the tower - Ensuring all installations meet safety and regulatory standards - Collaborating with our team to coordinate installation schedules Ideal skills and experience: - Expertise in RF equipment and installation - Experience working on towers - Knowledge of safety regulations and practices in RF installation
I’m in the concept stage of a passion project: putting full-featured 5G with Band 71 support ...classic flip/slider housings • Recommended donor shells or new-tooling approaches—I’m wide open to suggestions • Strategies for long battery life without bloating the form factor • PCB layout, antenna placement, thermal concerns, and component sourcing • Certification path (FCC, PTCRB), estimated costs, and realistic timelines toward a first prototype Ideal outcome After our call I’d appreciate a concise summary—key risks, rough BOM estimates, and next-step milestones—so I can decide whether to proceed to detailed design. If you have hands-on experience with mobile RF front-ends, antenna tuning in cramped encl...
I'm looking for detailed low voltage shop drawings for a Science Building doing security system, data/communication system, and audio/video and distributed antenna system (DAS). The drawings are required for shop drawings. Requirements: - Wiring diagrams - Floor plans - Rack elevations Ideal skills and experience: - Expertise in low voltage system design - Proficiency in creating accurate and detailed shop drawings - Familiarity with security, data/communication, and audio/video systems - Cable Tray layout and J hook
I’m consolidating the electronics of my wearable prototype into one slim, production-r...schematic that marries the ESP32-C3 Xiao Seed with the BMI160 (and any supporting passives, regulators, antennas, USB-C circuitry, etc.). • Production-grade Gerber, drill, pick-and-place, and centroid files, plus a clean BOM ready for my assembler. • Any custom footprints or libraries you created, so I can revise the design in KiCad down the road. I’ll provide the current breakout board wiring and pin mappings; you streamline the layout, handle power integrity, antenna clearance, and keep the whole board as compact as practical for a wrist-mounted enclosure. A brief bring-up guide or test points call-out would be the final cherry on top. If this sounds righ...
We are seeking an experienced embedded systems engineer or IoT hardware developer to design and develop a low-cost, modular STM32-based IoT device for advanced asset tracking and environmental monitoring. The device should include multi-sensor data collection, 5G connectivity, full GPS tracking, and many features. Develop a reliable, battery-powered IoT device capable of: Real-time GPS tracking Environmental monitoring Motion and tilt detection 5G data transmission Remote configuration & OTA updates Minimum 20-day battery life MCU STM32 (low-power series preferred: STM32L / STM32U) Secure boot support External flash for data logging Connectivity 5G cellular modem (LTE fallback acceptable if justified) Nano SIM or eSIM support WiFi (2.4 GHz minimum) Bluetooth BLE 5.0+ GNSS (G...
...with regional band configuration (for example B3, B5, B8, B20, B28 depending on target markets) and support for NB-IoT power classes such as 20 dBm (Class 5) and 23 dBm (Class 3). The design shall include nano-SIM or MFF2 eSIM (1.8 V/3 V) with proper ESD protection, and RF implementation must follow best practices for wearable products: a minimum 4-layer PCB with controlled-impedance 50 Ω RF traces, solid ground reference, provision for RF shielding, and a tunable cellular antenna matching network (Pi network recommended) accounting for on-body detuning; if GNSS is included, a dedicated GNSS RF path and antenna solution (passive or active) must be supported. Power is provided by a single-cell Li-Po battery (typically 200–500 mAh) with integrated protecti...
Embedded Firmware Developer Needed for JieLi AC6965E4 Audio SoC (Bluetooth, USB, FM, UAR...source code developed using the appropriate JieLi SDK. Compiled firmware binary (.bfu / .bin) ready to be flashed. Serial Protocol Documentation: A simple text or PDF document outlining the hex commands or AT commands required for the external MCU to communicate with your firmware. Pinout/Wiring Guide: A basic diagram or description showing which pins on the AC6965E4 are assigned to USB, FM antenna, and UART TX/RX. Ideal Candidate: Proven experience working with Zhuhai JieLi Technology chips (AC692x, AC695x, AC696x series). Familiarity with the JieLi SDK, toolchain (Code::Blocks/Pi32), and flashing tools. Strong background in C programming and designing robust UART/Serial protocols.
...single wire is pulled. The scope centers on design and planning only—no on-site installation is required at this stage. Vehicle • Platform: Electric Vehicle (EV) - Chevrolet Brightdrop 600 cargo van Systems to be integrated • 48v 100 Ah House Battery Management System (BMS) • Shore Power Charging & house battery to/from vehicle charging option • High-power (3000+) 48v DC/AC pure sine wave inverter feeding 120V house circuits • Secondary LiFePO4 (or gallium/GaAs semi-solid state) 20 Kwhr house battery bank with proper isolation from the traction pack • Roof-mounted ETFE N-type/P-type monacrystalline 300 Wh/kg flexible solar array and MPPT charge controller tied into the above Data feed - tri-band dual SIM bonded router & Ext MI...
I need a complete electromagnetic design package for a Ku-band monopulse antenna that operates reliably across 12-18 GHz. The antenna will be the heart of a precision tracking system, so both the sum (Σ) and difference (Δ) patterns must be tightly controlled with excellent boresight stability and low side-lobe levels. Please base the work on industry-standard simulation tools such as CST, HFSS, or FEKO and keep the feed network fully compatible with standard WR-62 waveguide interfaces. I am happy to discuss options on aperture technology—horn array, reflectarray, or planar—but whichever architecture you select must meet the tracking accuracy targets we set together. Deliverables I need at the end: • 3-D CAD model and native simulation fil...
...physical isolation and redundancy: the board must allow the existing PC case buttons to function in parallel with the remote commands while ensuring the PC’s electrical system is completely isolated from the controller using optocouplers. Scope of Work PCB Design Only: You are responsible for the schematic capture and PCB layout (Gerber files, BOM, and Pick-and-Place files). No Firmware/Software: No coding is required for this milestone; I will handle the ESP32 programming. Key Technical Requirements Dual-Input Parallel Logic: The design must include headers to connect the physical PC case buttons so they remain fully functional alongside the ESP32 control. Onboard Power & Charging: The board must feature an integrated battery holder for a 1000mAh LiPo, a TP4...
...two features are non-negotiable. Alongside them, the design should accommodate auto-TDS control and an alkaline adjustment mode so users can fine-tune mineral content on demand. Sensor integration includes a TDS probe, temperature probe, flow sensor, and the drivers necessary for a mineral-mixing pump. All of this has to fit within a compact, appliance-friendly footprint and meet typical safety standards for domestic water equipment. Deliverables • Complete schematics and multilayer PCB layout (Gerber, drill, pick-and-place) • Well-structured BOM with part numbers available through major suppliers • Design files in Altium, KiCad or equivalent, plus exported manufacturing packages • Reference design for Wi-Fi module antenna pl...
...complete point-to-point microwave link budget worked out for a 5 G band hop. I’m most comfortable if you build it in Pathloss—feel free to run checks in other tools if that speeds up your workflow, but the final files must open cleanly in Pathloss so I can follow the numbers. What I expect to see in the finished package: • Pathloss project file with every step documented • Clear tables for antenna gain, transmission power and receiver sensitivity, plus any other parameters that affect fade margin, availability and overall performance • A brief narrative or PDF summary that walks me through the assumptions, terrain data sources and how you arrived at the final margin—keep it beginner-friendly as this is my first time commissioning a link budge...
I am leading a multi-phase Huawei network monitoring and optimization program and want to bring in a specialist team that lives and breathes RF optimisation. The immediate focus is on two core activities—antenna optimisation and detailed coverage analysis—across our live LTE and 5G layers. Here is what the engagement will look like from day one: • You will receive recent drive-test logs and OSS counters from our Huawei OSS (U2000 / M2000). • Your team analyses the data, confirms inconsistencies, and then refines antenna tilt, azimuth, and power settings to close our coverage holes without creating new interference pockets. • Clear, actionable recommendations are delivered back to me with before/after KPI projections (RSRP, SINR, throughput)...
...fuselage-top antenna sits too far aft. I need the antenna slid forward to the position shown in my reference image while keeping scale, orientation, and symmetry intact. This is for an aircraft in MSFS. Because the antenna sits on a single material zone, shifting it will require a quick UV touch-up: please adjust the existing texture so there are no stretching artifacts or mismatched shading. No new textures are necessary, and there are no other geometry edits—just this antenna relocation with basic detail retained. Deliverables • Updated .blend file with the antenna correctly positioned • Exported .gltf showing the change • Any edited texture maps or UV layouts, clearly labeled Acceptance The model must load error-fr...
I need a small, custom-shaped antenna housing made of plastic. Requirements: - Material: Plastic - Shape: Custom shape - Size: Small (up to 5 inches) Ideal Skills: - Experience with plastic molding - Ability to design custom shapes - Knowledge of antenna housing requirements Looking for a freelancer who can create a durable, precise, and functional antenna housing. Please provide examples of previous work.
Project Description: I am looking for an experienced RF/Antenna Design freelancer to design and simulate a flexible wearable antenna using ANSYS HFSS for my final year project. Scope of Work: Design of a flexible microstrip/patch antenna for 5G (Sub-6 GHz, e.g., 3.3–3.8 GHz) and/or IoT band Selection and modeling of appropriate flexible substrate material (e.g., Polyimide, Rogers RT/duroid, textile substrate) Optimization of antenna parameters (length, width, feed position, ground structure, etc.) Simulation and analysis of key parameters: S11 (Return Loss ≤ -10 dB) VSWR Gain and Directivity Radiation Pattern (2D & 3D) Bandwidth Radiation Efficiency Bending analysis to evaluate performance under curvature (wearable condition) P...
Project Overview We are developing a marine electronic device for pleasure boats. We are looking for an experienced industrial designer / mechanical engineer specialized in plastic injection molding design to design: • The enclosure (top & bottom shell) • Internal mounting structure for PCB • Antenna compartments • Waterproof cable entry • DFM optimization for mold production The enclosure must be designed for production using injection molding. Technical Context The device contains: • PCB approx. 70 x 80 mm ( I will provide 3D object of pcbs) • 10mm cable output / or waterproof connector • Marine environment exposure Target size: approx. 300mm x 100mm x 100mm (subject to optimization) Requirements The enclosure mus...
I need a focused research effort that looks at satellite-communication antennas from three angles at once: maximising signal strength and quality, mapping frequency-band usage, and refining antenna design and materials. The outcome should give me clear, data-backed guidance I can hand straight to my hardware team. Scope You will survey current literature and patents, run electromagnetic simulations (HFSS, CST, FEKO or similar), and translate the findings into practical design recommendations. Emphasis is on L-, S- or Ku-band performance; however, if your analysis uncovers a better-suited band, flag it and justify the choice. Deliverables • Concise comparative report (PDF) • Simulation files with setup notes • Performance charts showing gain, VS...
I’m kicking off a multi-phase R&D effort devoted to the design and development of cutting-edge microstrip antennas. The overarching targets are straightforward: boost usable bandwidth while simultaneously lifting signal strength, all without compromising the core advantages of printed technology. Phase by phase, I’ll be iterating from theoretical models through to lab-verified prototypes. You’ll take the lead on concept generation, electromagnetic simulation (HFSS, CST or an equivalent full-wave solver), layout refinement, and hand-over for fabrication. Once hardware comes back, we’ll compare measured S-parameters and radiation patterns against the simulated baseline, fine-tune, and document lessons learned for the next spin. Key deliverables • Sim...
...consumer-electronics device. The work begins with schematic capture and component selection, moves through PCB layout, and finishes with ready-to-manufacture Gerbers, a complete BOM, and clear test guidelines. The radio link is the heart of the design, so careful RF layout, antenna matching, and regulatory-compliant power levels are essential. Bluetooth LE is my preferred protocol, though I am open to Wi-Fi or other 2.4 GHz solutions if you can demonstrate lower cost or better battery life without sacrificing performance. Please plan on: • Delivering editable design files in Altium, KiCad, or Eagle, plus PDFs for quick review • Calling out any critical components with long lead times and proposing substitutes where sensible • Providing a b...
...optimized for battery life, ruggedized for rain and mud, and small enough to be fit into a broadhead style design for an arrow and light enough to not majorly affect flight path. I would like it rechargeable as well, and a way to turn it on and off to preserve battery life. I’ll lean on your expertise to choose the right chip set, antenna layout, power-saving firmware techniques, and mobile-side integration. A concise mobile demo app (Android or iOS) that plots the device on a map will round out the proof of concept. Once I have a tracker device with size, weight and shape, I will handle the rest of the design in terms of how it affects flight path, delivery and durability. I need a raw design and can take the rest from there. I am looking for a ...
I already have a working ESP32 design in KiCad and need it brought to its final, production-ready form for a commercial product that must clear CE. The job centres on three key changes: swapping the Micro-USB for a USB-C connector, integrating a Li-Po charging IC, and tweaking the board outline and component placement so everything fits a new enclosure while preserving optimal antenna clearance, decoupling, and thermal performance. Please keep manufacturing constraints in mind and pass every KiCad DRC before delivery. Timeline is tight three days from award so I’m looking for someone who can move quickly yet meticulously. Deliverables • Updated KiCad project (schematic and PCB) • Fabrication package: Gerbers, drill files, BOM, and pick-and-place (CPL)...
...dropped in without a full redesign. What I expect from you: • Complete schematic, PCB layout and clean routing for the Nano, Wi-Fi module, particulate sensor, regulated power path (USB-5 V input and Li-ion option), plus an on-board antenna or footprint. • Clearly labelled break-outs for I²C, UART and an SPI port, and pads for an optional 0.96" OLED or similar display. • All design files (KiCad or Altium), Gerbers, drill files, a fabrication drawing and an annotated, supplier-ready BOM. • Brief design notes that explain component choices, antenna clearance, power-budget calculations and how to reconfigure the spare headers for future gas sensing. Once I confirm the board boots, connects to Wi-Fi and streams raw part...
400 MHz, 900 MHz , 1200 MHz, 1575MHz , 2400 MHz ,5200 MHz , 5800 MHz , PCB type, as much as high gain, Max size 20 cm X 12 Cm
...looking for an experienced PCB design engineer to create a compact PCB that integrates LTE and GPS functionalities in a single module. The design must include onboard antennas for both LTE and GPS, a charging circuit, and debugging options. All other design and component details will be discussed over chat. --- Functional Features (Antenna Design Requirements): The PCB should include onboard antennas for both LTE and GPS, similar to the integrated antenna design used in ESP32 modules. Antennas must be PCB-etched or chip-type, without external connectors. Proper RF impedance matching (50Ω) and matching networks should be implemented for both antennas. Ensure antenna isolation, ground clearance, and tuning for optimal LT...
...whole chain has to stay online even when nearby frequency jammers or other RF noise are present. • Live status dashboards and alerts are required so I can see, at a glance, that every hop in the link is healthy. Here’s how I picture the collaboration: 1. You review the hardware specs and choose the most resilient protocol settings (frequency-hopping, spread-spectrum, encryption, power levels, antenna layout, etc.). 2. You walk me through the exact configuration—firmware tweaks, pairing steps for the phones/tablets, and any DJI Assistant 2 parameters needed. 3. Together we test the setup in a remote session, simulate interference, and verify uninterrupted streams and telemetry updates. 4. You deliver a short PDF/markdown guide summarising every setting, ...
...repair services -Excellent performance and fast loading times -Good usability on both mobile and desktop -Clear contact options / contact form -Search-engine-friendly structure (basic SEO) Site language: The website must be Finnish-language only All content, navigation, and forms must be in Finnish Site structure / pages (current and required): Home About Us Financing Heat Pumps Appliance Repair Antenna Installations Contact Blog / News section (existing content should be preserved and easy publishing enabled) Technical preferences: -WordPress (lightweight theme or custom solution) -Minimal use of plugins -Clean, maintainable implementation -Easy to update and manage going forward -No heavy page-builder dependency -In your proposal, please include: -Experience with similar pr...
I need a miniature sine-wave transmitter board. I will supply the exact antenna footprint and the precise target frequency (it will be somewhere below 100hz, specified down to the decimal). Your task is to design a PCB smaller than 2 cm × 2 cm that generates a clean, low-distortion sine wave, feeds it to the antenna, and runs for at least one month on a single CR2032 coin cell. It has step sweep formula Long-term frequency stability, minimal harmonic content, and ultra-low power consumption are critical. Feel free to use discrete components, a low-power MCU with DAC, a numerically controlled oscillator, or any other architecture that can hit the spec while staying inside the tight footprint and power envelope. Deliverables • Complete schematic and PCB ...
I need a complete mixed-signal design for an eight-channel Bluetooth communication system: four inputs for data acquisition and four outputs for actuation or stimulation. The unit must span a wide frequency range—everything from standard audio bandwidth up into the low-MHz region—while keeping each output capped at 5 V, 5 mA so it remains safe for direct human-facing applications. Because the project will handle live data, the entire chain has to support real-time streaming over Bluetooth Classic; latency has to stay low enough that an audio-rate round-trip remains perceptually seamless. Inside the enclosure, you can split the path however you wish—purely analog front ends feeding ADCs, DSP blocks, then DACs and analog output buffers—so long as the final a...
RF Antenna PCB Design with Altium software and delivery the gerber file also 2 pdf file
I have a Zebra fixed RFID reader with its paired antenna already installed on-site and now need it fully integrated into my own custom inventory-management software. The end goal is simple: every tag read by the reader must flow straight into the application so I can see precise item locations in real time and trigger automatic inventory counts without manual intervention. Here is what I expect: • Configure and fine-tune the reader and antenna for consistent EPC Gen 2 tag captures across our storage area, including power, sensitivity, and antenna multiplexing settings. • Build the middleware or direct API hooks—using the official Zebra SDK, REST streams, or another proven method—to push read events into my custom software database and messa...
I am seeking an experienced RF / electronics design freelancer to develop a complete RFID tag electronics solution for tracking equipment used indoors in high-humidity environments, such as laboratory instruments, workshop tools, and test equipment. The goal is to attach a small, flat, flexible, and lightweight shelf-style RFID tag (similar in form factor to book or library tags) to each asset. The tag must be rugged, low-profile, and suitable for attachment to fabric or textile surfaces, while remaining readable quickly and reliably by standard RFID readers. The system should enable identification of an item’s presence and approximate location within the facility. The tag must also be capable of reporting enclosure temperature and humidity via RFID. Scope of Work 1. RFID Te...
...PLANNING - GERMAN STANDARD and concept services to clients across industry, logistics, hotels, and commercial facilities. We are looking for experienced freelancers to support our projects in the following areas: Areas of Expertise: RFID Access Solutions – industrial facilities, hotels, commercial buildings, machine authorization Radio & Antenna Concepts – LoRa, WLAN, LTE/5G indoor coverage, antenna layout and field planning Automation Concepts – PLC design, process control workflows (planning only, no on-site execution) Robotics Concepts – educational and industrial robot integration, process optimization What We Offer: Remote collaboration across the EU Clear project scope and deliverables Professional, long-term partnerships ...
...Stealth features that dampen sound, heat and visual signature. Scope • Design or select an airframe that remains agile in tight streets yet stable when carrying heavier loads. • Specify and integrate propulsion, battery, flight-controller and telemetry hardware able to meet endurance and range targets typical of city-wide missions. • Develop or adapt autonomous flight software (Ardupilot, PX4, INAV or similar) so the craft can follow GPS-denied navigation cues, return-to-home failsafes and waypoint paths while streaming low-latency FPV video. • Advise on—or supply—materials and coatings that cut acoustic and IR signatures without compromising thrust-to-weight ratio. • Provide ground-station setup, antenna recommendations and ...
...high-value technical PLANNING and concept services to clients across industry, logistics, hotels, and commercial facilities. We are looking for experienced freelancers to support our projects in the following areas: Areas of Expertise: RFID Access Solutions – industrial facilities, hotels, commercial buildings, machine authorization Radio & Antenna Concepts – LoRa, WLAN, LTE/5G indoor coverage, antenna layout and field planning Automation Concepts – PLC design, process control workflows (planning only, no on-site execution) Robotics Concepts – educational and industrial robot integration, process optimization What We Offer: Remote collaboration across the EU Clear project scope and deliverables Professional, long-term partnership...
...router. Out-of-the-box performance is disappointing, so I haven’t moved beyond the stock PCB trace; no repositioning tricks or external antennas have been tried. I’d like you to guide me through (or design for me) an antenna modification that materially extends the unit’s range while keeping the overall footprint small. Practical advice on matching networks, ground-plane tweaks, or a compact external antenna design is welcome—as long as it improves signal strength through those walls. Deliverables • A schematic and physical layout (or clear step-by-step photographs) of the proposed antenna modification, tailored to the ESP32 Super Mini form factor. • Bill of materials with component values for any matching netw...
We are seeking an experienced Electronics Engineer with strong expertise in PCB antenna design to develop a modular interactive hardware system for a public exhibition environment. The system includes: A Teensy 4.1–based Master Hub 50+ circular Slave Nodes (120mm) featuring high-density LEDs and RFID/NFC sensing This is a specialist-level project, ideal for engineers with 4–5+ years of proven experience in antenna PCB design, RF systems, and power electronics. Core Technical Requirements -Antenna / RF Design -PCB antenna design & tuning for ST25R3911B -7cm reliable read range through 3mm resin -ISO 15693 compatibility RF simulation & validation required -Power & Thermal Design -24V / 10A daisy-chained...
...cannot get any free-to-air TV channels. I’m not even sure if a TV antenna has been installed on the roof, so I need a professional to inspect the setup and get everything working. The issue: • Brand new residential property • TV connected to wall antenna outlet • Channel scan finds no channels / no signal • Unsure whether: • An antenna is installed on the roof • The antenna is connected to the wall points • There is a missing amplifier or splitter • Cabling has not been terminated correctly What I need: • A licensed / experienced TV antenna technician • Inspect roof to confirm if antenna exists • Test signal at wall outlets • Check internal cabling, splitters, and te...
...REST or MQTT endpoint. I am looking for a document set that details: • Hardware architecture: MCU, low-power WiFi module, antenna, sensor package, power source, and enclosure considerations • Firmware flowcharts covering WiFi scanning, interval sleep strategy, and button interrupt handling • Communication protocol, payload structure, and sample API calls for both periodic location uploads and the service-call event • Bill of materials with part numbers that are readily available • Power budget showing expected battery life at the 15- and 30-minute reporting intervals • Suggestions for FCC/CE compliance and OTA update hooks Please factor in low-power design best practices and indoor positioning accuracy techniques such as RSSI fing...
...Bill of Materials (BOM). We are seeking a versatile Electromechanical Engineer to handle the complete physical design: Electronics: Designing a custom PCB for the main control unit. Mechanical: Designing the 3D-printable enclosure to house the electronics and a high-capacity battery. Key Responsibilities: Mechanical Design (3D CAD): Design a 2-part enclosure: A "Main" unit (housing the PCB, Display, and Sensors) and a "Base" unit (housing a large cylindrical Li-Ion battery). Design the internal mounting strategy (screw bosses, snap-fits) and wire channels to route power cables between the two units. Ensure precise cutouts for USB-C, SD Card, and the display window. PCB Design (ECAD): Create a custom shape PCB based on your...
PCB DESIGN REQUIREMENTS (FINAL – MECHANICAL CONSTRAINT UPDATED) 1. BOARD OVERVIEW (UPDATED) PCB Type: Main controller PCB (production-grade) Board Width: 100 mm (FIXED – DO NOT CHANGE) Board Length: Variable – minimize as per component layout Thickness: 1.6 mm Layers: 4-layer PCB (mandatory) L1: Signals L2: Solid GND plane L3: 5V power plane L4: Signals Solder Mask: Matte black Silkscreen: White Board Edge: Black Mounting Holes: 4 × M3 (corner-aligned to final outline) ⚠️ Mechanical Priority: PCB length reduction is a design objective, provided electrical safety, thermal margin, and connector accessibility are not compromised. 2. POWER SYSTEM Power Input Voltage: 5V DC Current: Up to 10A Connector: 2-pin screw terminal (5.08 mm) Protection (mandatory):...
