Title :
Millimeter-wave micromachined tunable filters
Author :
Hong-Teuk Kim ; Jae-Hyoung Park ; Yong-Kweon Kim ; Youngwoo Kwon
Author_Institution :
Sch. of Electr. Eng., Seoul Nat. Univ., South Korea
Abstract :
Novel types of MM-wave tunable filters using micromachined variable capacitors are presented. In order to demonstrate this concept, two bandpass filters, one with 2-pole lumped elements and the other with 2-pole resonators are designed at Ka-band and fabricated using MEMS technology. With applied bias, the center frequency shifts as much as 1.1 GHz (4.2%) at 26.6 GHz, and 0.8 GHz (2.5%) at 32 GHz, was measured for lumped elements and resonators filter, respectively. These results show the potentials of micromachined tunable filters for low cost, highly integrated transmitter and receiver for MM-wave multi-band communication systems.
Keywords :
band-pass filters; capacitors; circuit tuning; micromachining; micromechanical devices; millimetre wave filters; passive filters; resonator filters; 2-pole lumped elements; 2-pole resonators; 26.6 GHz; 32 GHz; EHF; Ka-band; MEMS technology; MM-wave multiband communication systems; MM-wave tunable filters; bandpass filters; integrated receiver; integrated transmitter; micromachined tunable filters; micromachined variable capacitors; Band pass filters; Capacitors; Costs; Filter bank; Frequency; Magnetic separation; Resonator filters; Tunable circuits and devices; Tuning; Voltage;
Conference_Titel :
Microwave Symposium Digest, 1999 IEEE MTT-S International
Conference_Location :
Anaheim, CA, USA
Print_ISBN :
0-7803-5135-5
DOI :
10.1109/MWSYM.1999.779610
