Title :
A Ka-band 4-bit monolithic phase shifter using unresonated FET switches
Author :
Maruhashi, K. ; Mizutani, H. ; Ohata, K.
Author_Institution :
Kansai Electron. Res. Lab., NEC Corp., Shiga, Japan
Abstract :
This paper presents a Ka-band 4-bit monolithic phase shifter incorporating novel unresonated FET switches which show broadband on/off characteristics up to 40 GHz without inductors. The developed switched-line phase shifter MMIC demonstrated an overall phase deviation of 3.3/spl deg/ r.m.s. and an insertion loss deviation of 0.9 dB r.m.s. at 34.5 GHz. Over a relatively wide frequency range from 33 to 36 GHz, the phase deviation was less than 7/spl deg/ r.m.s. The chip size of the MMIC is 2.5 mm/spl times/2.2 mm.
Keywords :
MMIC phase shifters; field effect MIMIC; field effect transistor switches; millimetre wave phase shifters; 33 to 36 GHz; 40 GHz; EHF; Ka-band; MM-wave IC; broadband on/off characteristics; monolithic phase shifter; switched-line phase shifter; unresonated FET switches; Capacitance; Circuit topology; Delay lines; Electrodes; FETs; National electric code; Phase shifters; Phased arrays; Switches; Virtual colonoscopy;
Conference_Titel :
Microwave Symposium Digest, 1998 IEEE MTT-S International
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
0-7803-4471-5
DOI :
10.1109/MWSYM.1998.689322
