Title :
A Compacted CMOS K-Band Bandpass Filter Using Meandering Thin Film Microstrip and UC-PBG Structures
Author :
Lin, Shuiyang ; Sun, Xiaowei ; Yang, Liwu
Abstract :
A compacted CMOS K-band bandpass filter incorporating meandering thin film microstrip and defective uniplanar compact photonic bandgap (UC-PBG) slow-wave structures for size reduction are presented. Benefited from the multilayer metal technology of the standard 0.18-mum CMOS process, meandering thin film microstrip and broadside-coupled structures with large coupling degree are properly constructed to realize bandpass filters with small insertion loss. The slow-wave effect of UC-PBG structure is investigated and a center frequency drop of 14% is achieved by the use of UC-PBG ground. A 3.6-dB loss 18 GHz filter with two transmission poles has been designed and implemented in standard 0.18-mum CMOS technology and only with an area of 0.34 mm2.
Keywords :
CMOS integrated circuits; band-pass filters; microstrip filters; microwave filters; photonic band gap; slow wave structures; thin films; UC-PBG structures; broadside-coupled structures; compacted CMOS K-band bandpass filter; defective uniplanar compact photonic bandgap slow-wave structures; frequency 18 GHz; loss 3.6 dB; meandering thin film microstrip; multilayer metal technology; size 0.18 mum; size reduction; standard CMOS process; transmission poles; Band pass filters; CMOS process; CMOS technology; Couplings; K-band; Microstrip filters; Nonhomogeneous media; Optical losses; Photonic band gap; Transistors;
Conference_Titel :
Silicon Monolithic Integrated Circuits in RF Systems, 2009. SiRF '09. IEEE Topical Meeting on
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-3940-9
Electronic_ISBN :
978-1-4244-2831-1
DOI :
10.1109/SMIC.2009.4770491
