A Wide Frequency Range CMOS Active Inductor for UWB Bandpass Filters

被引：10

作者：

Reja, Md Mahbub ^{[1
]}

Moez, Kambiz ^{[1
]}

Filanovsky, Igor ^{[1
]}

机构：

[1] Univ Alberta, Dept ECE, Edmonton, AB, Canada

来源：

2009 52ND IEEE INTERNATIONAL MIDWEST SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1 AND 2 | 2009年

关键词：

active inductor; negative impedance converter; UWB band-pass filter;

D O I：

10.1109/MWSCAS.2009.5235983

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

A CMOS active inductor that exhibits wide-frequency range inductive impedance with a high quality factor (Q) is presented. The inductor is designed using negative impedance obtained in a cross-coupled transistor pair that is a part of the feedback loop consisting of common gate and common drain stages. Then, a tunable ultra-wideband (UWB) bandpass filter (BPF) is designed by cascading two such inductors back-to-back through a varactor. The proposed active inductor and the BPF are designed and simulated in 90nm CMOS digital process. The inductor exhibits inductive impedance in the range from few MHz to over than 20GHz and achieves Q-factor of 600. The designed BPF shows a -3dB bandwidth of 2.25GHz with a tuning range of 5GHz.

引用

页码：1055 / 1058

页数：4

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