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A 20 GHz Doherty power amplifier MMIC with high efficiency and low distortion designed for broad band digital communication systems

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4 Author(s)
McCarroll, C.P. ; Raytheon RF Components, Andover, MA, USA ; Alley, G.D. ; Yates, S. ; Matreci, R.

The design of an 18.8 GHz to 20.2 GHz GaAs PHEMT Doherty amplifier is described. Tested performance of this amplifier is presented including single tone performance and NPR performance with a broadband waveform. The broadband waveform is a digitally generated, 500 MHz, noise like signal. This broadband 500 MHz NPR test is described and is a new capability setup for testing broadband communication power amplifiers.

Published in:

Microwave Symposium Digest. 2000 IEEE MTT-S International  (Volume:1 )

Date of Conference:

11-16 June 2000