Title :
A miniaturized MMIC analog phase shifter using two quarter-wave-length transmission lines
Author :
Hayashi, H. ; Muraguchi, M.
Author_Institution :
Wireless Syst. Labs., NTT Network Innovation Labs., Kanagawa, Japan
Abstract :
A miniaturized MMIC analog phase shifter using two quarter-wave-length transmission lines is described. The number of transmission lines it uses is half that of a conventional analog phase shifter, which uses a 3-dB 90/spl deg/ branch-line hybrid. The chip size of the experimental GaAs MESFET MMIC analog phase shifter is less than 0.71 mm/sup 2/, and a phase shift of more than 100/spl deg/ and an insertion loss of 2.2/spl plusmn/0.8 dB are obtained from 19 GHz to 24 GHz.
Keywords :
III-V semiconductors; MESFET integrated circuits; MMIC phase shifters; analogue processing circuits; field effect MMIC; gallium arsenide; 1.4 to 3.0 dB; 19 to 24 GHz; GaAs; III- semiconductors; MESFET MMIC; MMIC analog phase shifter; chip size; insertion loss; phase shift; quarter-wave-length transmission lines; Capacitors; Diodes; Distributed parameter circuits; Gallium arsenide; Inductors; Laboratories; MMICs; Phase shifters; Transmission lines; Varactors;
Conference_Titel :
GaAs IC Symposium, 1999. 21st Annual
Conference_Location :
Monterey, CA, USA
Print_ISBN :
0-7803-5585-7
DOI :
10.1109/GAAS.1999.803770
