A wideband compact parallel-strip 180° Wilkinson power divider for push-pull circuitries

被引：78

作者：

Chiu, L ^{[1
]}

Yum, TY ^{[1
]}

Xue, Q ^{[1
]}

Chan, CH ^{[1
]}

机构：

[1] City Univ Hong Kong, Wireless Commun Res Ctr, Kowloon, Hong Kong, Peoples R China

来源：

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2006年 / 16卷 / 01期

关键词：

harmonic suppression; parallel-strip line (PSL); push-pull amplifier; wideband Wilkinson power divider;

D O I：

10.1109/LMWC.2005.859972

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 Wilkinson power divider with a differential output implemented in parallel-strip-line (PSL) is proposed. Taking full advantages of the PSL technology and a three-stage cascaded design, more than 170% impedance and isolation bandwidths are obtained. Inherent to the PSL structure, the 180 degrees differential output is frequency-independent. A class-B push-pull power amplifier employing the devised concept is designed, showing a peak efficiency of 44% over a 4-GHz bandwidth. Without exploiting any extra and external low-pass filters, the proposed design can produce startling second-harmonic suppressions (more than 50 dB) over the whole working dynamics and operated bandwidth.

引用

页码：49 / 51

页数：3

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