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€250-750 EUR

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已发布超过 7 年前

€250-750 EUR

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I have designed a circuit board with a LORA antenna 868Mhz (with pi filter and 50ohm) and an integrated trace antennas on the PCB, designed per manufacturer design recommendations with pads for a "PI" filter for impedance matching the antennas to 50ohm impedance. I'm looking for a RF engineer who can select components (capacitors and inductors) for the PI filter and test the circuit boards with the proper equipment, a network analyzer. Please only bid if you have the correct equipment and experience with this type of antenna tuning / impedance matching. Thank you.
项目 ID: 11762408

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11提案
远程项目
活跃7 年前

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11威客以平均价€555 EUR来参与此工作竞价
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Dear Hiring Manager, I am a PhD researcher with specialization in microwave and RF. I can offer my expertise in novel, efficient, high gain, high bandwidth, low profile and flexible ANTENNA DESIGNS of all types. Moreover, I can design high frequency (in the range of MHz to GHz) circuits like low noise amplifiers (LNAs), tunable oscillators, mixers etc. I have in-house testing facility to characterize any type of antenna... I have in-house LPKF manufacturing facility to realize any type of antenna and then test its S11 using VNA and its radiation pattern using anechoic chamber. Provide me full specifications, and plz bear in mind I provide high quality work so charge high. Thanks.
€600 EUR 在30天之内
4.9 (43条评论)
5.4
5.4
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Hello! I am a talented Electrical Engineering Engineer and Electronics Scientist looking to be hired. Throughout my career I have been working with Electrical Engineering, Electronics and Engineering for many companies around the world. I have also worked as a Microcontroller Programmer and PCB Layout Designer. I have had dramatic results with my previous employers and promise to deliver the same for your company . I am also expert with: 1) Embedded systems: Years of experience with most popular architectures and MCUs, always up to date with every new innovation. Worked on Microchip PIC and ARM Cortex-M4 (C language). I have good experience with RTOS as well like FREERTOS and TI RTOS. Worked using Keil, TI CCS, Eclipse. 2) PCB Design and manufacturing: 2 years experience in using Altium software for designing PCBs including RF circuits. 3) Analog desinger. I have 2 years experience in and Analog Video Transmission. 4) RF designer: I also have experience in RF Power Amplifier, Low Noise Amplifier( at and ), designing Vivaldi antenna/RFID antenna, RF filter and Impedance matching. 5)Good use of the ADS and CST simulation software for analyzing Microwave RF circuits and Matlab software. I would love to work on your project lets discus it further via chat Thanks Regards Robin
€736 EUR 在10天之内
4.7 (18条评论)
5.8
5.8
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Hi, I read your project details, I have expertise in Firmware development. Let me know if you have any relevant project. Looking Forward,
€263 EUR 在10天之内
5.0 (6条评论)
4.5
4.5
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Hello, I know that the maching part is very imported. I work with a lot of Bluetooth Antenas and also WiFi. I have a network analizer and I know that they are very expensive over 100.000 euros For the matching I need your PCB. I have 8 years of product design in the automotive industry. I am an expert in: - Dc - Dc converters - USB charging - accelerometers, gyroscopes - GPS and GSM - LCD Displays - LED power calculation As a Layouter I have 5 Years experience. I am an expert in : - Power Dissipation Calculation - EMC Rules - Impedance Calculation - Manufacturing Rules I have made Layout for ARM processor. Work also with BGA footprint. I have done projects even on 10 layer. So I know how to build a layer stack up. As Layout and Schematic software I am an expert in Eagle, PADs, Zuken. As Simulation software for the Schematic I used LTSpice. If you want more information feel free to contact me. Thank you, Alex.
€750 EUR 在20天之内
5.0 (14条评论)
4.5
4.5
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Dear Customer I have read your project specific requirement for product design. Our Skills:- Embedded System:- Microcontrollers/Development Platforms ARM Cortex based microcontrollers, PIC 18 and 16 series, 8051 and its derivatives, MSP430, Arduino, Raspberry Pi, Beaglebone Balck, PLC programming Operating Systems and Libraries FreeRTOS, Embedded Linux, etc. IDEs and Toolboxes Kiel Microvision, CCS, MPLab, Visual Studio, Labview etc. Programming Languages Embedded C, Assembly, VHDL PCB Designing Altium Designer Studio Computer Vision/Image Processing OpenCV, MATLAB Our team includes graduates in Electronic & Communication, Instrumentation & Control Engineering with experiences more than 10 years. We guarantee 100% dedication to your project and we will continue to work on it until you are completely satisfied with what we work portfolio projects that you are free to peruse through at your discretion. “I would love to hear from you” You are most welcome to contact me any time 24/7 for discuss/ask any query on skype or chat. Thanks & Regards, Sudhir
€750 EUR 在20天之内
4.7 (3条评论)
3.9
3.9
用户头像
Hi I can do the requested RF design, based on your selected LORA IC and related peripheral circuit, and trim the PI filter at the antenna to have a match at 50Z! You should provide to me all the design information that you currently have completed, to base on them my work for you. Testing of the RF spectrum, and matching of the antenna to the unit will be done at my fully equipped RF Lab (see portfolio pictures). Offer includes all redesign files for your production, and the results from these test on a prototype made by me, that I will also send to you as demo, upon completion. You project seems to be exactly same with another one posted from a freelancer from France. Are you working with him? He has a problem with the resin he uses to protect his design. Is that the same case? Feel free to contact me for any further clarification may needed. Merci Sotiris Papadimitriou
€777 EUR 在20天之内
5.0 (1条评论)
2.9
2.9
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hello, I am interested to work on this project. I have read the description and I am able to do this. I will take 3 to 4 days to complete this task. Let me know if you are interested. Thanks. Chirag
€361 EUR 在10天之内
4.9 (5条评论)
3.1
3.1
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Hi Sir, I have Vector Network Analyzer N5230C that is two port VNA covering range from 10MHz to 20GHz and your product is well covered. I am very good RF engineer side by side with embedded systems, Embedded systems are my hobby but RF designs and testings are part of my professional job responsibilities. What i offer you will be to tune your antenna and boards for any VSWR observed. I have very good hands on VNA, i have used it for testing various antennas, there input impedance, reflection coefficients, trends on smith charts, axial ratio etc. So I think i am the fit guy for your project with a very well calibrated VNA. If you agreed with my overpriced bid than i will be pleased to listen from you! I am confident that my fellow freelancers who bid for this project don't have any VNA, maybe i am wrong on this but since VNA is very expensive equipment so that make me to think on this line. Also for embedded systems, circuit designs and pcb layouts and pcb manufacturing and assembling, i have good team and good resources so don't worry just talk and consider your project is done. Have a good day! Cheers ! Ahmad
€800 EUR 在10天之内
5.0 (2条评论)
1.9
1.9
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Please send me further details so that I can work on them precisely and evaluate your needs. Thanks in advance.
€450 EUR 在10天之内
5.0 (1条评论)
1.0
1.0
用户头像
HELLO, I understand your requirements precisely to deliver Creative designs •101% client satisfaction guaranteed. I read through the job details extremely carefully**product **Designs. I can complete your project on time and within your budget. I have worked on similar projects to what you are looking for, and I am confident I can exceed your expectations. I can achieve the results that you are asking for. I would love to work on your project. I will start work asap.I will regularly update you Thanks. GARIMA..
€300 EUR 在3天之内
0.0 (0条评论)
0.0
0.0
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Hello, I can do this project. I am expert in Network Simulator (NS2/3), LTESIM, Oment++ and OPNET. I have done no of project on Network Simulator (NS2/3), LTESIM, Oment++ and OPNET. Please open your chat box for more discussion. Area of Interest: Standard Protocol, wireless sensor network, routing protocol.
€555 EUR 在10天之内
0.0 (0条评论)
0.0
0.0

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UNITED KINGDOM的国旗
Birmingham, United Kingdom
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