A V-band Monolithic HEMT Amplifier Using Two Types of RF Grounds

Naoko ONO  

Publication
IEICE TRANSACTIONS on Electronics   Vol.E87-C   No.6   pp.1010-1012
Publication Date: 2004/06/01
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section LETTER (Special Section on Analog Circuit and Device Technologies)
Category: 
Keyword: 
RF ground,  HEMT,  coplanar waveguide,  amplifier,  V-band,  

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Summary: 
We have developed a V-band monolithic HEMT amplifier with single positive power supply. The amplifier used two types of RF grounds for coplanar waveguides (CPW) as transmission lines. One RF ground has a voltage of 0 V at DC, and the other RF ground has a voltage of more than 0 V at DC. A prototype of the monolithic amplifier was fabricated. The amplifier had a gain of 21.0 dB, a Rollett stability factor K of 2.35, an input VSWR of 1.82, and an output VSWR of 2.14 at 59.5 GHz.