One-decibel insertion loss 1-14.3 GHz ultrawideband bandpass filter using standard 0.18 μm CMOS technology

被引：0

作者：

Lin, Chih-Ying ^{[1
]}

Cheng, Chia-Hao ^{[1
]}

Lin, Yo-Sheng ^{[1
]}

Wang, Chien-Chin ^{[1
]}

机构：

[1] Natl Chi Nan Univ, Dept Elect Engn, Puli, Taiwan

来源：

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2012年 / 54卷 / 04期

关键词：

CMOS; ultrawideband; bandpass filter; input return loss; low insertion loss;

D O I：

10.1002/mop.26743

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A low insertion loss ultrawideband (UWB) bandpass filter (BP filter) with two finite transmission zeros (fz1 and fz2) at high-frequency stopband by 0.18 mu m CMOS technology was demonstrated. fz1 (the lower frequency one) and fz2 can be tuned individually by the shunt branch (L2, Rs2, C3, and C4 + Cp2) and the series inductor (L1, Rs1, and Cp1), respectively. The microstrip line interconnection lines as well as the spiral inductors were implemented by the 2.34-mu m-thick topmost metal (M6) to minimize the resistive loss. This filter achieved insertion loss (1/S21) lower than 3 dB for frequencies 114.3 GHz, stopband rejection better than 20 dB for frequencies higher than 20.4 GHz, and input return loss (S11) better than -10 dB for frequencies 2.416.4 GHz. The minimum insertion loss was 1 dB at 4.2 GHz. To our knowledge, this is one of the best results ever reported for a CMOS UWB BP filter in the literature. (c) 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:10441047, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26743

引用

页码：1044 / 1047

页数：4

共 11 条

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