Title :
Two Ka-band quasi-optical amplifier arrays
Author :
Forman, M. ; Marshall, T. ; Popovic, Z.
Author_Institution :
Dept. of Electr. & Comput. Eng., Colorado Univ., Boulder, CO, USA
Abstract :
Performance repeatability, thermal properties, and effects of biasing are studied on two Ka-band quasi-optical slot amplifier arrays fabricated with commercial MMICs on 254-/spl mu/m aluminum-nitride substrates. The unit cells are arranged in a 6/spl times/6 triangular lattice to suppress sidelobes. The amplifier arrays have peak small-signal gains of 2.1 dB at 31.02 GHz and 6.5 dB at 31.40 GHz, respectively.
Keywords :
MMIC amplifiers; circuit stability; millimetre wave amplifiers; power combiners; slot antenna arrays; 2.1 dB; 254 micron; 31.02 GHz; 31.4 GHz; 6.5 dB; Ka-band; MMICs; amplifier arrays; biasing; peak small-signal gains; performance repeatability; quasi-optical amplifier arrays; slot amplifier arrays; thermal properties; triangular lattice; Antenna arrays; Gain; High power amplifiers; Lattices; MMICs; Power amplifiers; Power generation; Slot antennas; Stability; Thermal management;
Conference_Titel :
Microwave Symposium Digest, 1999 IEEE MTT-S International
Conference_Location :
Anaheim, CA, USA
Print_ISBN :
0-7803-5135-5
DOI :
10.1109/MWSYM.1999.780328
