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A filter synthesis technique applied to the design of multistage broadband microwave amplifiers

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4 Author(s)
Rooney, J.-P. ; Inst. of Microwaves & Photonics, Leeds Univ., UK ; Parry, R. ; Hunter, I. ; Pollard, R.D.

A synthesis method for designing multistage broadband amplifiers based upon well known filter synthesis techniques is presented. Common low-pass approximations are used to synthesize the amplifier circuit. A proof of concept Butterworth low-pass two-stage amplifier was designed, simulated and measured, and achieved a flat gain performance of 1-4 GHz with a gain of 15 /spl plusmn/ 1 dB as predicted. A comparison is made with the distributed amplifier (DA) and the cascaded single stage distributed amplifier (CSSDA). Theoretically a larger gain bandwidth product is achieved using the synthesis technique.

Published in:

Microwave Symposium Digest, 2002 IEEE MTT-S International  (Volume:3 )

Date of Conference:

2-7 June 2002