NOVEL TUNABLE BRANCH-LINE COUPLER FOR WLAN APPLICATIONS

被引：10
|
作者：
Salehi, Mohamad Reza [1 ]
Noori, Leila [1 ]
Abiri, Ebrahim [1 ]
机构：
[1] Shiraz Univ Technol, Dept Elect & Elect Engn, Shiraz, Iran
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2015年 / 57卷 / 05期
关键词：
microstrip; branch-line coupler; tunable; WLAN;
D O I：
10.1002/mop.29025
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：
In this article, a tunable branch-line coupler with a novel structure is designed to operate at 5.7GHz. A design method is based on miniaturization method with adjusting the resonance frequency. The proposed coupler without taped line feed structures operated at 5.62 GHz, and it has a size of 55.8 mm 2 while its performance is reasonable. To improve the performance, the taped line feed structures are added. The wideband response exhibits that the proposed coupler acts properly with the spurious harmonics up to 11.4 GHz. In addition, at 5.7 GHz, the good insertion loss (2.3 dB) and coupling factor (2.6 dB) are obtained. The proposed coupler is simulated, fabricated, and measured. The results show that there is a good agreement between the simulation and measurement results. (C) 2015 Wiley Periodicals, Inc.
引用
收藏
页码：1081 / 1084
页数：5
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