A compact single layer branch-line coupler for ultra-wideband (UWB) applications

被引：1
|
作者：
Velan, Sangeetha [1 ]
Kanagasabai, Malathi [1 ]
机构：
[1] Anna Univ, Coll Engn, Dept Elect & Commun Engn, Guindy Campus, Chennai 600025, Tamil Nadu, India
来源：
INTERNATIONAL JOURNAL OF MICROWAVE AND WIRELESS TECHNOLOGIES | 2017年 / 9卷 / 03期
关键词：
Passive components and circuits; Modeling; Simulation and characterizations of devices and circuits; DESIGN METHOD;
D O I：
10.1017/S1759078716000416
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：
This paper presents the design of a compact, planar, single layer, tri-section ultra-wideband (UWB) branch-line (BL) coupler. The prototype offers 10 dB return loss characteristics from 3.1 to 13.7 GHz. Over a major portion of the band, phase imbalance of +/- 10 degrees is achieved. The method of deploying multi stage impedance feed has been used to achieve improved bandwidth. To enhance the power output through the coupled port throughout the operating band, ring shaped slots have been introduced in the ground plane beneath the series arms. The performance of the fabricated prototype has also been validated experimentally.
引用
收藏
页码：505 / 508
页数：4
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