An Efficient, Watt-Level Microwave Rectifier Using an Impedance Compression Network (ICN) With Applications in Outphasing Energy Recovery Systems

被引：44

作者：

Xu, Junfeng ^{[1
]}

Ricketts, David S. ^{[2
]}

机构：

[1] MIT, Cambridge, MA 02139 USA

[2] N Carolina State Univ, Raleigh, NC 27606 USA

来源：

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2013年 / 23卷 / 10期

关键词：

Amplifier; efficiency; impedance compression network (ICN); outphasing; rectifier;

D O I：

10.1109/LMWC.2013.2278276

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：

We present a transmission line based impedance compression network (ICN) for application in RF-to-dc conversion. We show that the ICN is able to significantly compress the undesired input impedance variation that occurs when there is a large variation of input power. We designed and measured an ICN for a 4 W, 4.6 GHz rectifier and show that the impedance is significantly compressed with the ICN. We then demonstrate the ICN in an outphasing system where we achieve up to a 37% improvement in efficiency at back-off power and an overall more efficient design over large input power variation.

引用

页码：542 / 544

页数：3