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simulation and results for a GSM cellphone repeater for home - RF Cafe Forums

Because of the high maintenance needed to monitor and filter spammers from the RF Cafe Forums, I decided that it would be best to just archive the pages to make all the good information posted in the past available for review. It is unfortunate that the scumbags of the world ruin an otherwise useful venue for people wanting to exchanged useful ideas and views. It seems that the more formal social media like Facebook pretty much dominate this kind of venue anymore anyway, so if you would like to post something on RF Cafe's Facebook page, please do.

Below are all of the forum threads, including all the responses to the original posts.


b_tonymontana
Post subject: simulation and results for a GSM cellphone repeater for home Posted: Mon Feb 27, 2006 6:10 pm

Lieutenant

Joined: Sat Feb 25, 2006 6:10 pm
Posts: 1
Location: Montreal, Canada
I need help in choosing a simulation package(software) to simulate a GSM phone repeater operating on 1900 MHz or 850 MHz which are the 2 main frequency band used in Canada.

Does anybody knows how to do this or anybody have done this simulation and I need help to first simulate this and then of course impelment the unit. However, at this stage I only need the simulation and the results to have an output of around 1W or less. (the maximum allowed based on government regulations and spectrum canada is 2Watts).

The components and parts I would like to use are Antenna, Duplxere, LNA (low noise amplifiers), and of course the band-pass filter and maybe another stage of power amplifier after the band-pass filter for uplink and the offset frequency for the downlink with the same components for the downstream. I can also send you my overall design on paper and the range of frequency I want to simulate if it will help you more.1850 - 1910 MHz( uplink)
1930 - 1990 MHz (downlink)

Thanks a lot
Cheers

My Email: b_tonymontana@yahoo.com

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fred47
Post subject: Simulator for GSM repeaterPosted: Wed Mar 01, 2006 1:16 pm

General


Joined: Wed Feb 22, 2006 3:51 pm
Posts: 104
Hi Tony,
The choice of a simulator depends on a number of things:
1. What kind of results do you need? Power, distortion, impedance, BER?
2. What do you have to provide the simulator? Detailed schematic with specific parts, with available models? Or just "10 dB amplifier" for one stage?
3. What kind of budget (time and money do you have? An associated question: Will you use the simulator again, or must its costs be allocated totally to this repeater project?
4. What kind of filters are you considering? Make or buy?

All these affect your choice.

Good Luck!



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