Title :
Beam-forming matrix design using MMICs for a multibeam phased-array antenna
Author :
Gupta, R. ; Hampsch, T. ; Gerson, H. ; Zaghloul, A. ; Sorbello, R. ; Assal, F.
Author_Institution :
COMSAT Labs., Clarksburg, MD, USA
Abstract :
The design and packaging approaches for a lightweight, beam-forming matrix (BFM) for a Ku-band multibeam phased-array antenna are presented. The BFM is assembled in a modular package using Wilkinson dividers/combiners; GaAs monolithic microwave integrated circuit (MMIC), 5-bit phase shifters; and highly integrated driver/level-shifter electronics on alumina substrate boards. Tests over the 11- to 13-GHz frequency range demonstrate uniform performance for all phase-shifter states and transmission paths within a BFM shelf. Insertion loss variations for all paths in a BFM shelf are within +or-1 dB with the phase shifters in the reference state.<>
Keywords :
MMIC; antenna accessories; antenna phased arrays; microwave antenna arrays; modules; packaging; 11 to 13 GHz; GaAs; Ku-band; MMICs; SHF; Wilkinson dividers/combiners; alumina substrate boards; beam-forming matrix; level-shifter electronics; modular package; monolithic microwave integrated circuit; multibeam phased-array antenna; phase shifters; Assembly; Circuit testing; Driver circuits; Electronics packaging; Gallium arsenide; Integrated circuit packaging; MMICs; Microwave integrated circuits; Monolithic integrated circuits; Phase shifters;
Conference_Titel :
Gallium Arsenide Integrated Circuit (GaAs IC) Symposium, 1991. Technical Digest 1991., 13th Annual
Conference_Location :
Monterey, CA, USA
Print_ISBN :
0-7803-0196-X
DOI :
10.1109/GAAS.1991.172629
