Title :
A high-power W-band monolithic FGC doubler
Author :
Papapolymerou, John ; East, Jack ; Katehi, Linda P B
Author_Institution :
Dept. of Electr. & Comput. Eng., Arizona Univ., Tucson, AZ, USA
fDate :
5/1/2000 12:00:00 AM
Abstract :
This paper describes the realization of a high output power W-band planar monolithic doubler using finite ground coplanar lines. The design of this doubler is based on two parallel pairs of varactor Schottky diodes fabricated on GaAs substrate, Measured results indicate a 12.5% efficiency at 74 GHz, a minimum 3-dB bandwidth of 12.5%, a return loss of -15 dB and a maximum output power of 115 mW. To the authors´ knowledge, this is the highest output power level reported for a planar/monolithic W-band doubler
Keywords :
MMIC frequency convertors; Schottky diodes; coplanar transmission lines; frequency multipliers; millimetre wave frequency convertors; varactors; -15 dB; 115 mW; 12.5 percent; 3-dB bandwidth; 74 GHz; GaAs; W-band; finite ground coplanar lines; maximum output power; monolithic FGC doubler; parallel pairs; return loss; varactor Schottky diodes; Circuit optimization; Doping; Impedance; MMICs; Power generation; Q factor; Radio frequency; Schottky diodes; Tuning; Varactors;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
