NOVEL 2.4 GHZ BRANCH-LINE COUPLER USING MICROSTRIP CELLS

被引:13
作者
Salehi, Mohamadreza [1 ]
Noori, Leila [1 ]
机构
[1] Shiraz Univ Technol, Dept Elect & Elect Engn, Shiraz, Fars, Iran
关键词
isolation; phase imbalance; miniaturized; resonance frequency; DUAL-BAND;
D O I
10.1002/mop.28552
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 microstrip structure is proposed to design a miniaturized branch-line coupler operated at 2.4 GHz for Wireless LANs applications. By analyzing different microstrip cells, one method is presented to obtain the perfect input impedance matching condition and another one is proposed to control the resonance frequency. In comparison to the previous works, the proposed coupler features good isolation and negligible phase imbalance equal to 42.9 dB, and 0.09 degrees, respectively. Also in comparison to all of the references in this article, the proposed coupler has a minimum size of 175.1 mm(2). Finally, the designed structure is fabricated and measured. (C) 2014 Wiley Periodicals, Inc.
引用
收藏
页码:2110 / 2113
页数:5
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