Antenna designJobs
I’m looking for an experienced Wireless Network / IoT Engineer to help me design the correct setup for a solar-powered wireless IP camera. We already have the camera and solar panel, but we are struggling to select and combine the correct access point / antenna / network components to make everything work reliably. The task includes: • Recommending the correct access point or wireless bridge • Ensuring compatibility with a solar-powered camera • Advising on power consumption • Verifying range, stability, and bandwidth • Optional: diagram of the final setup No physical installation required, only remote consulting and hardware recommendation.
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
..."Big name's" engineer regarding the location and placement of an antenna for a cell tower. My primary concern is signal reach, and I'm looking for expert input on where placement is best for maximum impact. Ideal skills and experience: - USA licensed RF Engineer (State of Kentucky) - Expertise in telecommunications and signal distribution - Experience with antenna placement and optimization - Strong analytical skills to assess and improve signal reach - Ability to provide a detailed and professional rebuttal Please provide a well-researched and convincing argument. We are a fairly rural community with lots of acreage where an antenna would have low to no impact on people's homes. Cell company has applied to place an antenna next ...
...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):...
4×4 inset-fed microstrip patch antenna array on Rogers 4350B (h = 1.524 mm) operating at 2.1 GHz, using a corporate power divider network, targeting gain > 12 dBi, HPBW < 50°, and ~100 MHz bandwidth. Simulation software preference: CST Polarization : circular Impedance of the antenna :50 Ω Required deliverables : CST simulation file, and explanation size constraints : 150 x 150
Need a 4x4 array patch antenna, h=1.524mm, of material Rogers 4350B at 2.1GHz, using power divider Inset-fed patch antenna has to be attached to it. Gain more than 12 dBi Beam width < 60 Band width= 100 MHz
I am looking for an RF/Antenna Design Engineer to design and optimize a CPW-fed planar antenna in ANSYS HFSS that achieves triple-band operation with S11 response similar to the attached plot. The antenna must be CPW-fed (Coplanar Waveguide feed) and fabricated on a single-layer PCB substrate. Target Electrical Requirements: The antenna must resonate at the following frequencies: ~1.22 GHz ~1.60–1.66 GHz ~2.20–2.23 GHz With: Return loss (S11) ≤ −25 dB at all three bands Preferably deep nulls (−30 dB or better) similar to the attached S-parameter plot Exact resonance alignment within ±3–5% is acceptable. Antenna Constraints: Feeding technique: CPW-fed (mandatory) Substrate: Rogers RO4350B ...
...laying out a compact multi-layer PCB, and making sure everything plays nicely with typical smart-home power rails. Signal integrity, thermal performance, and antenna placement are critical because the unit will sit inside a small plastic enclosure. To keep things clear, here’s what I expect as final hand-offs: • Complete schematic (editable design files) • PCB layout with ready-to-fabricate Gerbers and drill data • Clean, itemised BOM with part numbers and sourcing notes • Brief design report explaining key decisions and test points If you’re comfortable working with microcontroller-driven sensor networks, low-power design techniques, and wireless modules such as Wi-Fi, Bluetooth, or Zigbee, I’d love to hear h...
I already have the complete antenna design, simulation graphs, and measured data for a microwave structure that achieves lowered Specific Absorption Rate (SAR). What I now need is a polished, publication-ready manuscript—10 to 15 pages—laid out in strict IEEE journal format. Here’s what I expect from you • Shape a compelling Literature Review and solid Theoretical Background that survey the latest SAR-reduction techniques for microwave antennas. • Present my supplied data in a clear, reproducible Methodology section; this part is the top priority. • Integrate results, discussion, and a concise conclusion so the flow matches IEEE style guidelines. • Deliver entirely original text, free of plagiarism and detectable AI assistance (I...
Need a 4x4 array patch antenna, h=1.524mm, of material Rogers 4350B at 2.1GHz, using power divider Inset-fed patch antenna has to be attached to it. Gain more than 12 dBi Beam width < 60 Band width= 100 MHz by using CST software
Project Title ESP32-C6 + TI IWR6843AOP mmWave Radar Custom PCB Design ⸻ Project Description We are looking for an experienced hardware / PCB design engineer to design a custom integrated PCB combining: • Texas Instruments IWR6843AOP mmWave radar SoC (antennas-on-package) • ESP32-C6 (8MB flash) (Wi-Fi / BLE / main controller) The goal is to create a production-oriented but developer-friendly board for a mmWave-based presence / vital signs monitoring device (breathing, heart rate, presence detection). This is not a copy of an EVM, but a reduced, optimized custom board following TI reference design guidelines. ⸻ Scope of Work Core Requirements Radar (IWR6843AOP): • External QSPI flash (standalone boot) • UART output for radar data ...
I need...dashboard I can log into from day one. Core requirement • Real-time tracking must be live and accurate the moment the car moves. Nice-to-have • If adding a temperature sensor can be done cleanly alongside the tracker, let me know what hardware you recommend and any extra wiring or calibration time you’d need. What I expect from you 1. Hardware installation for every car, including power, antenna placement and tamper-proofing. 2. Cloud or self-hosted dashboard setup with login credentials, map view and basic alert rules. 3. Brief hand-over session so I understand how to add or remove vehicles, pull reports and set up further alerts. Please outline your proposed hardware, any platform subscriptions I should budget for, and how many vehicles you c...
...colour LCD whose sole job is to show battery status at a glance. Around that screen I’d like simple touchscreen zones for a modern feel, and the finished fob should also support true keyless entry and push-button start so the driver never has to take it out of a pocket. Core technical requirements • Secure rolling-code generation and synchronisation compatible with the OEM BCM • Integrated antenna design and tuning for both LF (passive entry) and UHF (remote) bands • PCB, firmware and enclosure designed to fit Alfa’s existing key cavity dimensions • Low-power management so the LCD and capacitive touch remain efficient • Splash resistance is preferred—full waterproofing isn’t mandatory but please keep seals and coa...
...purely the layout. It has a main microcontroller, several low-profile sensors, and a Bluetooth module that will share limited RF-friendly real estate with the antenna. I’ll supply the schematic, mechanical envelope, and preferred connector locations as soon as we start. I’d like to partner with an engineer based in the U.S. who has already taken at least one watch or fitness tracker board through fabrication—someone comfortable balancing high-density routing, impedance-controlled RF lines, and battery-powered power-plane strategy in a sub-2 mm stack. Deliverables • Complete PCB layout files (Altium or KiCad preferred, the original design tool’s native format) • Gerber/ODB++ manufacturing package with confirmed DRC clearance for a...
I'm looking for an experienced electronic hardware developer to create a wireless radio device focused on signal transmission. Key Requirements: - Design and develop consumer-grade wireless radio - Ensure robust and reliable signal transmission - Experience with wireless communication protocols - Knowledge of RF circuit design and antenna technology Ideal Skills & Experience: - Background in electronic engineering - Proven track record in developing wireless communication devices - Familiarity with regulatory requirements for radio equipment - Strong problem-solving skills and attention to detail Please provide a portfolio with relevant projects.
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...and photos for a new antenna tower and I now need them turned into architectural drawings that will satisfy the local building department’s permit requirements. Because the structure must slot neatly into an existing setting, the first step is an on-site visit so you can verify dimensions, capture any additional details I may have missed and assess any constraints that could influence the plans. Scope • Translate my field sketches and photos into clean, code-compliant architectural drawings focused solely on the tower installation. • Deliver the final plans as a PDF set that I can submit directly to the municipality. I am not requesting structural or electrical sheets at this stage—just the architectural package needed for the permit application. Familiari...
...with files and complete bill of materials with readily available parts. 3. Firmware or modulation scheme documentation that shows how the sensor bytes are encoded, transmitted, and verified on reception. 4. Recommended antenna design and alignment notes to achieve the stated 5 km range. 5. Brief test procedure so I can replicate your range and reliability results before moving to production. If you have previous experience with low-band UHF/HF data links or have already built battery-powered telemetry modules, that background will be a plus. Please keep the design lean, component counts low, and regulatory considerations for 27 MHz operation in mind....
I’m putting together a custom 65% mechanical keyboard and need a complete PCB schematic that brings a premium feature-set together in one tight design. Core requirements • Dual-mode connection: wired over USB-C plus Bluetooth 5.1 for low-latency wireless use. • LED Lighting. • Integrated battery-charging and power-management section so users can swap seamlessly between wired and wireless. • A small on-board OLED display (think the status screen on the Apex Pro TKL 2023) that can show layer, battery, and custom messages. • One rotary-encoder knob that can drive three separate actions: – Volume control – Lighting effects – Macro commands (via firmware layer changes) Layout & electronics The schematic must...
I am looking for PCB design and embedded hardware related projects. I am a professional PCB Design Engineer with 2+ years of hands-on industry experience in schematic design, PCB layout, reverse engineering, and embedded hardware development. Scope of Work: Schematic Design & Modification PCB Layout Design (Single / Multi-layer) Reverse Engineering of Existing PCBs Component Selection, BOM Creation & Verification Footprint & Library Creation (0603, 0805, 1206, 0204, SMD & TH) EMI/EMC Considerations, DRC, DFM & DFA Gerber Generation & Manufacturing Support Hardware Debugging & Design Optimization RF Antenna PCB Design & Verification Embedded Firmware Support (ESP32, ST, ATML, 8051) Tools & Skills: Al...
...module with stable power-management, antenna clearance, and USB-to-UART programming interface. • PCB layout (2-layer is fine if performance allows) that remains within 50 × 50 mm, ready for standard SMT assembly. • Breakouts or onboard footprints for common environmental sensors; I haven’t finalised the exact parts, so leave room on I²C and a couple of ADC/GPIO lines for temperature, humidity or motion modules. • Production files: Gerbers, drill, pick-and-place, and a clean BOM with part numbers available from JLCPCB/LCSC or a similarly priced house. • Brief bring-up guide so I can flash and test Wi-Fi/BLE as soon as boards arrive. Feel free to work in KiCad, Altium, or Eagle—whatever gets me manufacturable files fastest. If you...
...schematic, a well-routed multilayer board and the files a contract manufacturer can drop straight into fabrication. The job covers: • Translating my block diagram into a full schematic (Altium, KiCad or Eagle—use what you’re fastest with) • Layer stack-up and impedance-controlled routing for the RF section so the wireless module meets FCC/CE requirements • Placement optimisation around the antenna keep-out and battery area to keep the device slim • Generating Gerbers, drill drawings, pick-and-place and a concise BOM with manufacturer part numbers • A quick DFM pass so I won’t hit surprises at the board house I’ll share mechanical constraints, preferred components and the preliminary firmware interface once we start. If y...
Hardware Engineer: Custom ESP32-CAM PCB & Enclosure Design (DFM & Mass Production) Project Overview I have a validated IoT prototype based on the AI-Thinker ESP32-CAM (OV2640). I am seeking a professional hardware engineer to transition this design from a development board to a production-ready product suitable for mass production. The project involves a custom PCB layout and a matching industrial enclosure design optimized for injection molding. 1. PCB Design & Engineering Requirements The goal is to create an optimized PCB that removes unnecessary components from the standard development board while adding specific status and control features. Core Functionality & Deletions • Retain: ESP32-S module (as WiFi, BLE4.2 functionalities are esse...
I’m putting together a custom 60 % mechanical keyboard and need a complete PCB schematic that brings a premium feature-set together in one tight design. Core requirements • Dual-mode connection: wired over USB-C plus Bluetooth 5.1 for low-latency wireless use. • LED Lighting. • Integrated battery-charging and power-management section so users can swap seamlessly between wired and wireless. • A small on-board OLED display (think the status screen on the Apex Pro TKL 2023) that can show layer, battery, and custom messages. • One rotary-encoder knob that can drive three separate actions: – Volume control – Lighting effects – Macro commands (via firmware layer changes) Layout & electronics The schematic mus...
I need a horn antenna design. The antenna should support a frequency range of 400-6000 MHz and allow for measurement of gain, radiation pattern, and return loss. Key Requirements: - Frequency range: 400-6000 MHz - Parameters for measurement: Gain, Radiation Pattern, Return Loss Ideal Skills and Experience: - Expertise in antenna design - Experience with communication antennas - Proficiency in measuring RF parameters
...possible; the goal is the absolute smallest form factor without compromising RF integrity for either the ESP32 or the SIM868. Deliverables (all in CAD-ready, manufacturer-friendly formats): • Schematic with reference designators and net labels • Optimised multi-layer PCB layout, impedance-matched RF traces and antenna clear-zones • Gerber/ODB++ files, drill files and pick-and-place data • BOM with footprints, part numbers, and suggested suppliers • Assembly drawing and brief design notes explaining power distribution, battery charging scheme and RF considerations Acceptance: files must import cleanly into KiCad/Altium, pass a standard DRC at 6/6 mil trace/space, and fit inside a 25 mm × 30 mm keep-out. If you can hit the size ...
...experienced Electronics Design Engineer to develop the PCBA for a compact medical wearable device. The project involves designing a 4-layer Mixed-Signal PCB that integrates Bluetooth Low Energy (BLE) with a sensitive high-precision Analog Front End (ECG/SpO2). We have the BOM, component requirements, and a reference architecture ready. Your job is to capture the schematic and create a production-ready PCB layout optimized for size and noise immunity. Key Technical Requirements Main MCU: Nordic nRF52840 (QFN Package). Analog Front End (AFE): TI ADS1293 or ADS1292R (SPI Interface). Power Management: TI BQ25120A (PMIC for Li-Po charging & power path). Display: 0.96" OLED (SSD1306 controller via I2C). RF/Antenna: 50-ohm impedance-matched trace or chip an...
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I’m building a next-generation smart-home power controller and need the complete electronics and firmware design. The unit must be modular yet robust, offering six independent electromechanical relays that each carry up to 15 A. An STM32WB55 series MCU will handle all application logic and run a full Zigbee 3.0 mesh stack, so the PCB has to respect RF layout best practices and give me a dependable antenna feed. Each relay requires its own ACS724 current-sense channel and a zero-cross detection circuit to minimise stress on the contacts. I also want an SHT4x sensor on board for ambient temperature and humidity, an RGB status LED for global health, and individual LEDs that mirror the state of every relay. Industrial-grade reliability is non-negotiable. Please factor in ...
Our warehouse still relies on spreadsheets, and accuracy is slipping as order volume grows. To fix this, I need a complete RFID-based inventory system put in place. The focus is strictly on setting up the system; day-to-day stock tracking and future audits will stay in-house once everything is live. Deliverables • Workflow assessment and reader / antenna placement plan • Bill of materials for tags, fixed and handheld readers, middleware and any cabling • Installation and configuration of the chosen RFID software, database and user roles • One-time migration of current spreadsheet data so historical counts carry over seamlessly • User guide and a short remote training call so staff can handle daily operations on their own • Final acceptance ...
Our warehouse still relies on spreadsheets, and accuracy is slipping as order volume grows. To fix this, I need a complete RFID-based inventory system put in place. The focus is strictly on setting up the system; day-to-day stock tracking and future audits will stay in-house once everything is live. Deliverables • Workflow assessment and reader / antenna placement plan • Bill of materials for tags, fixed and handheld readers, middleware and any cabling • Installation and configuration of the chosen RFID software, database and user roles • One-time migration of current spreadsheet data so historical counts carry over seamlessly • User guide and a short remote training call so staff can handle daily operations on their own • Final acceptance ...
UHF RFID Antenna & Tag Simulation (HFSS / COMSOL) – Freelancer Needed We are looking for an experienced freelancer to support an R&D project focusing on UHF RFID (860–960 MHz) systems, specifically electromagnetic simulation and performance analysis. Scope of Work Perform electromagnetic simulations using ANSYS HFSS or COMSOL RF Module Analyze: UHF RFID tag and reader antenna behavior Antenna–tag interaction Impedance matching between chip and antenna Backscatter characteristics Read range performance Model different environmental scenarios: Metal proximity effects Shelves / walls / surrounding materials Tag orientation and polarization Conduct parametric studies and document results Expected Deliverables Simulation files (HFSS or ...
Project Overview We have completed the full hardware design and PCB layout of a wearable IoT device and are seeking an experienced embedded systems engineer to continue development. The PCB is already: -Fully designed -Fabricated and assembled -4-layer, production-grade layout Your focus will be board bring-up, firmware completion, RF tuning, and system testing. Hardware Summary -MCU: nRF52840 (BLE) -Cellular + GNSS: SIMCOM SIM7000G (LTE Cat-M / NB-IoT + GNSS in one module) -Sensors: oIMU (motion, posture, activity) oPPG (heart rate, HRV, respiration) oTemperature Power: - Li-Polymer battery - Dedicated high-current buck for SIM7000G PCB: - 4-layer controlled impedance - Separate LTE, GNSS, and BLE antennas - RF matching networks included Scope of Work Phase 1 — Boar...
