Title :
A 62 GHz compact low-loss bandpass filter in integrated passive devices technology
Author :
Chen, Yi-Ming ; Chang, Sheng-Fuh ; Liao, Yen-Ning
Author_Institution :
Center for Telecommun. Res., Nat. Chung Cheng Univ., Chiayi, Taiwan
Abstract :
This paper presents a low insertion-loss millimeter-wave bandpass filters in an integrated passive device (IPD) technology. The designed IPD bandpass filter is composed of a stepped-impedance resonator with stepped-impedance stubs for transmission zero generation. The defected-ground three-line coupler was used for input/output feeding to alleviate the line-spacing layout restriction in the IPD. An implemented IPD filter has the measured insertion loss of 2.3 dB and the return loss better than 20 dB at 64.7 GHz. Two transmission zeros, located at 49 and 88 GHz, improve the stopband suppression. The measured performance is better than the same structure in CMOS technology.
Keywords :
CMOS integrated circuits; band-pass filters; defected ground structures; field effect MIMIC; millimetre wave couplers; millimetre wave filters; passive filters; resonator filters; CMOS technology; IPD bandpass filter technology; compact low-loss bandpass filter; defected-ground three-line coupler; frequency 49 GHz; frequency 62 GHz; frequency 64.7 GHz; frequency 88 GHz; input-output feeding; integrated passive devices technology; line-spacing layout restriction; loss 2.3 dB; low insertion-loss millimeter-wave bandpass filters; stepped-impedance resonator; stepped-impedance stubs; stopband suppression; transmission zero generation; transmission zeros; Band pass filters; CMOS integrated circuits; CMOS technology; Filtering theory; Impedance; Loss measurement; Resonator filters; Bandpass filter; Integrated passive device; Millimeter wave; Stepped-impedance;
Conference_Titel :
Microwave Conference Proceedings (APMC), 2011 Asia-Pacific
Conference_Location :
Melbourne, VIC
Print_ISBN :
978-1-4577-2034-5
