Active Quasi-Circulator MMIC Using OTAs

被引：34

作者：

Zheng, You ^{[1
]}

Saavedra, Carlos E. ^{[1
]}

机构：

[1] Queens Univ, Dept Elect & Comp Engn, Kingston, ON K7L 3N6, Canada

来源：

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2009年 / 19卷 / 04期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Active circulators; active quasi-circulators; operational transconductance amplifier (OTA); REALIZATION;

D O I：

10.1109/LMWC.2009.2015500

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 very compact, active quasi-circulator is proposed and experimentally demonstrated in this work. It consists of an active balun and a current combiner using operational transconductance amplifiers in CMOS. Experimental results show that the insertion loss between the circulation ports is low and all three ports have input reflection coefficients below -10 dB. The chip operates from 1.5 to 2.7 GHz and it outperforms previously known monolithic microwave integrated circuit circulators covering this frequency range in terms of the S(31) isolation, standing at -26 dB, as well as physical size: the integrated circuit measures only 0.25 mm(2) including bonding pads.

引用

页码：218 / 220

页数：3

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