Title :
Millimeter-Wave Lange and Ring-Hybrid Couplers in a Silicon Technology for E-Band Applications
Author :
Chirala, Mohan K. ; Floyd, Brian A.
Author_Institution :
Dept. of Electr. Eng., Texas A&M Univ., College Station, TX
Abstract :
Five compact millimeter-wave 90deg and 180deg distributed couplers are realized in the back-end-of-the-line of a 0.13mum SiGe BiCMOS technology. Lange couplers smaller than 160 mum on a side have been implemented showing -4 dB through, -5 dB coupling, 14 dB return loss, and 15 dB isolation for 60- and 77-GHz versions. Ring hybrids with phase-inverters have been implemented showing -4 dB through, -5.6 dB coupling, 18 dB return loss, and 21 dB isolation for 60- and 77-GHz versions. The rings are smaller than 330 mum on a side
Keywords :
BiCMOS integrated circuits; Ge-Si alloys; MIMIC; millimetre wave couplers; phase shifters; 0.13 micron; 14 dB; 18 dB; 60 GHz; 77 GHz; BiCMOS technology; E-band; SiGe; distributed couplers; millimeter wave Lange couplers; phase inverters; rat-race coupler; ring-hybrid couplers; BiCMOS integrated circuits; Bonding; Copper; Couplers; Dielectric substrates; Frequency; Germanium silicon alloys; Millimeter wave radar; Millimeter wave technology; Silicon germanium; 60 GHz; 77 GHz; E band; Lange coupler; V band; W band; millimeter-wave silicon; phase inverter; rat-race coupler; ring hybrid; silicon distributed passive circuits;
Conference_Titel :
Microwave Symposium Digest, 2006. IEEE MTT-S International
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-9541-7
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2006.249609
