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€250-750 EUR

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Opublikowano ponad 7 lat temu

€250-750 EUR

Płatne przy odbiorze
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.
Identyfikator projektu: 11755720

Informację o projekcie

9 ofert
Zdalny projekt
Aktywny 7 lat temu

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9 freelancerzy składają oferty o średniej wysokości €583 EUR dla tej pracy
Awatar Użytkownika
Hi I am Electrical Engineer and I have worked on SNR of different signals. I only work on those project which I can do with perfection. Send me complete details. See my previous project for more details. Regards Engineer Nouman
€500 EUR w 10 dni
4,5 (9 opinii)
4,8
4,8
Awatar Użytkownika
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. Feel free to contact me for any further clarification may needed. Merci Sotiris Papadimitriou
€777 EUR w 20 dni
5,0 (1 opinia)
2,9
2,9
Awatar Użytkownika
Hello, I am interested to wrk on this project. I have read the details and I want to discuss with you. Let me know if you are interested to work with me. Thanks. Chirag
€444 EUR w 10 dni
4,9 (5 opinii)
3,1
3,1
Awatar Użytkownika
Hi, I have good experience of working.... I believe in hard work and giving best to my clients. Please contact me i can do this task for you.
€555 EUR w 10 dni
5,0 (1 opinia)
1,6
1,6
Awatar Użytkownika
technical consultant with access to text equipment. I specialise in rf and circuit design hence it should not be a problem to match and select rf components for your circuit and antenna. I have previously design gsm band, lora band and wifi band antennas both micro strip and IC.
€555 EUR w 30 dni
5,0 (1 opinia)
0,7
0,7
Awatar Użytkownika
Love me I am a designer of several fields. Logo , Graphics Design , website and phone app design. Good at illustrator , photoshop , 3D max , Maya I have much time for your working. And I wanna take your project. You can see my profile for design Thanks.
€722 EUR w 10 dni
0,0 (0 opinii)
0,0
0,0
Awatar Użytkownika
SUMMARY: * Completed design and test of LNA, harmonic filters, transmit/receive antenna systems in C,X,Ku and Ka Band. * RF transmitter and receiver system design for satellite communication * Researched and designed L Band front-end receiver incorporating a low noise amp and microstrip filter. Investigated GaAs and BJT devices for use in the LNA section. * Conducted RF and antenna system design and analysis using AWR, FEKO and CST. * Developed block diagrams from requirements and designed board level analog circuitry. * Used Pspice for schematic capture and PCB layout. * Learned synthesis, design and simulation for narrow band, wide band, OMT and waveguide types of passive filters operating from C to Ka Band. * Skilled in using Vector Network Analyzer, Spectrum Analyzer, Anechoic Chamber far field measurements, Oscilloscopes, Impedance Analyzer, Signal Generator, Curve Tracers, LCR Meters and other Tektronix/Agilent equipment, * Standard procedures for RF path verification * Designed matching circuits for amplifiers using Microwave Office simulation program * Generated design documents and test reports. * Wrote internal research papers on broadband satallite communication system designs. * Simulated and optimized slot and aperture-coupled patch antennas by using FEKO and CST. * Antenna design (Special area: Wide band log-periodic antennas, reflector antennas)
€750 EUR w 7 dni
0,0 (0 opinii)
0,0
0,0
Awatar Użytkownika
I have a PhD in antenna design and have published many peer-reviewed articles on impedance matching. Moreover, I have access to the state-of-the-art antenna measurement equipment.
€555 EUR w 10 dni
0,0 (0 opinii)
0,0
0,0
Awatar Użytkownika
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 w 10 dni
0,0 (0 opinii)
0,0
0,0

O kliencie

Flaga FRANCE
France
0,0
0
Członek od paź 11, 2016

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