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Design >> RF Design >> Wideband power amplifier
https://designers-guide.org/forum/YaBB.pl?num=1215030860

Message started by Martin on Jul 2^nd, 2008, 1:34pm

Title: Wideband power amplifier
Post by Martin on Jul 2^nd, 2008, 1:34pm

Hi

I'm new to this forum and would like to ask if anybody knows a good hands-on guide or tutorial or anything else that explains how to go about building a wideband power amplifier.

I'm particularly looking to build a mobile (therefore small) amp for fm which should cover the vhf and uhf ham bands. Polyfet have published several wideband amp designs which cover this frequency range, but their semiconductors are hard to come by as they are not sold by any retailer. So I'd like to learn how to build something similar with another fet, i.e. a Mitsubishi one.

Regards
Martin

Title: Re: Wideband power amplifier
Post by loose-electron on Jul 3^rd, 2008, 12:04pm

Martin:

This forum is a bit more towards IC design than linear amplifiers for amatuer use. THat said, have you tried the ARRL collection of books, or one of the many amateur radio homebrew sites?

vy 73
Jerry
(WA1QDI - inactive)

Title: Re: Wideband power amplifier
Post by didac on Jul 4^th, 2008, 12:54am

Hi,
I agree with loose-electron to check ARRL or radio amateur sites(qsl.net I think), just for reference I checked my bookshelf and I found:
-Practical RF Circuit Design for Modern Wireless Systems,Active Circuits And Systems(Artech House) by Les Besser have a section about broadband matching and some examples(all the book it's about discrete design).
Hope it helps,

Title: Re: Wideband power amplifier
Post by Martin on Jul 6^th, 2008, 5:50am

Ok guys, my mistake. I din't notice this is about IC design.

It is indeed hard to find such info, i spent hours searching and found little in-depth info. This seems to be a chapter which has not been opened by many ham homebrewers yet...

However I will keep my eyes open and look for other forums.

Thank you.

Regards
Martin