A Novel Planar Dual-Band Branch Line Coupler Using Defect Ground Structure

被引：0

作者：

You, Changjiang ^{[1
]}

Zhu, Xiaowei ^{[1
]}

机构：

[1] Southeast Univ, Dept Radio Engn, State Key Lab Millimeter Waves, Nanjing 210096, Peoples R China

来源：

2008 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM DIGEST, VOLS 1-4 | 2008年

关键词：

branch line coupler; Defect Ground Structure (DGS); dual-band; microstrip line;

D O I：

暂无

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 novel planar coupler with Defect Ground Structure (DGS) is proposed for application to the dual-band operation. In the new design, two cross coupling branches are added to the conventional branch line coupler at the middle. They give more flexibility to design for dual-band application. Using the DGS, high impedance microstrip line is implemented easily and the electrical length of microstrip line increases. The two operation frequencies could be designed more closely using high impedance implemented by DGS. For verification purpose, a compact microstrip dual-band coupler applied for TD-SCDMA and WiMax operation was designed, fabricated and measured. Experimental results are in agreement with predicted values.

引用

页码：769 / 772

页数：4

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