Dual-band in-phase filtering power dividers integrated with stub-loaded resonators

被引:45
|
作者
Li, Qun [1 ]
Zhang, Yonghong [1 ]
Fan, Yong [1 ]
机构
[1] Univ Elect Sci & Technol China, Sch Elect Engn, EHF Key Lab Fundamental Sci, Chengdu 611731, Peoples R China
关键词
DESIGN; FREQUENCY; SINGLE; RATIO;
D O I
10.1049/iet-map.2014.0487
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 compact microstrip dual-band in-phase filtering power divider is presented in this study. The integrated two stub-loaded resonators are applied to realise the dual-band filtering response and compact size. Based on the even-odd-mode analysis, an analytical model of the proposed power divider structure is presented. To improve the frequency selectivity, a source-load cross coupling is introduced by placing input and output coupling lines closely. A prototype of the dual-band in-phase filtering power divider centred at 3.5 and 5 GHz with 3 dB fractional bandwidth of 7.4 and 4.2% is designed, fabricated and measured. The size of the fabricated power divider is 0.27 lambda(g) x 0.35 lambda(g). The simulated and measured results are presented and show good agreement.
引用
收藏
页码:695 / 699
页数:5
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