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
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
收藏
页码:49 / 51
页数:3
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