Feedforward interference cancellation in radio receiver front-ends

被引：50

作者：

Ayazian, Sahar ^{[1
]}

Gharpurey, Ranjit ^{[1
]}

机构：

[1] Univ Texas, Dept Elect & Comp Engn, Austin, TX 78712 USA

来源：

IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS | 2007年 / 54卷 / 10期

关键词：

feedforward cancellation; front-end; interference; low-noise amplifiers (LNAs) and mixers; narrow-band receivers;

D O I：

10.1109/TCSII.2007.902218

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：

An interference cancellation technique is described for improving the dynamic range of receivers. A feedforward approach is used to attenuate large interferers before the down-conversion mixer in a receiver. This is accomplished with no measurable impact on the in-band noise performance. Techniques to cancel interference within a narrowband and also in multiple bands are described. Simulation results and measurements from a discrete prototype system are used to validate the approach.

引用

页码：902 / 906

页数：5

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