22nd Iranian Conference on Electrical Enginnering , 2014-05-20

Title : ( An 8.8–9.8 GHz 100W hybrid solid state power amplifier for high power applications )

Authors: Mehdi Forouzanfar , Mojtaba Joodaki , Rouhollah Feghhi ,

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Abstract

This paper presents an 8.8-9.8 GHz hybrid power amplifier (PA) designed with GaN HEMT bare die transistors. Generally, hybrid X-band high power amplifier (HPA) suffers from relatively low bandwidth. However, this paper introduces wideband high gain power amplifier, by using low loss Wilkinson combiner/divider, a modified form of taper-based divider, and wideband matching structures. The optimum values of all elements are determined by using Random and Gradient algorithms. The microstrip matching structures are realized on Rogers4003 and RT/druid5880 substrates. Large-signal simulation results show peak efficiency of 40%, an output power of 100 W and power gain of 50 dB at 9.5GHz. The input and output return losses are respectively less than -12 dB and -10 dB.

Keywords

Power amps
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@inproceedings{paperid:1046299,
author = {Forouzanfar, Mehdi and Joodaki, Mojtaba and Feghhi, Rouhollah},
title = {An 8.8–9.8 GHz 100W hybrid solid state power amplifier for high power applications},
booktitle = {22nd Iranian Conference on Electrical Enginnering},
year = {2014},
location = {تهران, IRAN},
keywords = {Power amps},
}

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%0 Conference Proceedings
%T An 8.8–9.8 GHz 100W hybrid solid state power amplifier for high power applications
%A Forouzanfar, Mehdi
%A Joodaki, Mojtaba
%A Feghhi, Rouhollah
%J 22nd Iranian Conference on Electrical Enginnering
%D 2014

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