Title :
Equivalent circuit design of compacted K-band bandpass filters by standard 0.18-µm CMOS technology
Author :
Lin, Shuiyang ; Sun, Xiaowei ; Li, Lingyun ; Wang, Wei ; Yang, Liwu
Author_Institution :
RF Lab., Chinese Acad. of Sci., Shanghai, China
Abstract :
A method based on equivalent circuit is presented to design a class of compacted millimeter wave bandpass filters in standard 0.18-mum CMOS process. Thin film microstrip is properly constructed on the lossy silicon substrate to realize small insertion loss. Using broadside-coupled scheme, thin film microstrip bandpass filters are designed and fabricated. Equivalent circuit model and theoretical network analysis are given to explain the performance of the suggested filters. Design procedures for one-stage and multi-stage filters are proposed. Meandering transmission lines are properly constructed to miniaturize the chip size. A class of compacted K-band bandpass filters is implemented. Their measured results agree with the design results very well.
Keywords :
CMOS integrated circuits; band-pass filters; equivalent circuits; microstrip filters; microwave filters; millimetre wave filters; telecommunication transmission lines; thin film circuits; Si; broadside-coupled scheme; compacted K-band bandpass filter design; equivalent circuit design; equivalent circuit model; lossy silicon substrate; multistage filters; one-stage filters; size 0.18 mum; standard CMOS technology; theoretical network analysis; thin film microstrip bandpass filter fabrication; transmission lines; Band pass filters; CMOS process; CMOS technology; Equivalent circuits; K-band; Microstrip; Millimeter wave circuits; Millimeter wave technology; Semiconductor thin films; Thin film circuits;
Conference_Titel :
Microwave Integrated Circuits Conference, 2009. EuMIC 2009. European
Conference_Location :
Rome
Print_ISBN :
978-1-4244-4749-7
