Title :
A precise analog phase shifter for SHF SATCOM phased arrays
Author :
Hodges, N.E. ; Yam, M.H.
Author_Institution :
Space System Loral, Palo Alto, CA, USA
Abstract :
An analog phase shifter for satellite onboard phased arrays is presented. The compact MMIC (monolithic microwave integrated circuit) consists of a buffer amplifier and all-pass phase shift sections, covering 7 to 8.5 GHz. The root-mean-square phase error over frequency is +or-1.5 degrees . The amplitude variation over phase states is +or-5 dB. The phase resolution is preserved by a linear control curve. Better than 80% DC and RF yield was obtained across a 4-in wafer.<>
Keywords :
MMIC; antenna accessories; antenna phased arrays; buffer circuits; microwave amplifiers; phase shifters; satellite relay systems; 7 to 8.5 GHz; DC yield; MMIC; RF yield; SHF SATCOM phased arrays; all-pass phase shift sections; amplitude variation; analog phase shifter; buffer amplifier; linear control curve; phase resolution; root-mean-square phase error; satellite onboard phased arrays; Integrated circuit yield; MMICs; Microwave amplifiers; Microwave integrated circuits; Monolithic integrated circuits; Phase shifters; Phased arrays; Radio frequency; Radiofrequency amplifiers; Satellites;
Conference_Titel :
Gallium Arsenide Integrated Circuit (GaAs IC) Symposium, 1992. Technical Digest 1992., 14th Annual IEEE
Conference_Location :
Miami Beach, FL, USA
Print_ISBN :
0-7803-0773-9
DOI :
10.1109/GAAS.1992.247230
