A Design of Compact Ultra Wideband Coupler for Butler Matrix

被引：4

作者：

Muklas, Nor Salehah Binti ^{[1
]}

Rahim, Sharul Kamal Abdul ^{[1
]}

Seman, Norhudah ^{[1
]}

Zaidel, Dyg Norkhairunnisa Abang ^{[1
]}

Tan, Kim Geok ^{[2
]}

Reza, Ahmed Wasif ^{[3
]}

机构：

[1] Univ Teknol Malaysia, Wireless Commun Ctr, Fac Elect Engn, Skudai 81310, Johor, Malaysia

[2] Multimedia Univ, Fac Engn & Technol, Bukit Beruang 75450, Melaka, Malaysia

[3] Univ Malaya, Fac Engn, Dept Elect Engn, Kuala Lumpur 50603, Malaysia

来源：

WIRELESS PERSONAL COMMUNICATIONS | 2013年 / 70卷 / 02期

关键词：

UWB coupler; Directional coupler; Microstrip; Butler Matrix; Antenna; DIRECTIONAL-COUPLERS; QUADRATURE;

D O I：

10.1007/s11277-012-0729-9

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

A design of 3 dB compact ultra wideband (UWB) coupler for a 4 x 4 Butler Matrix, which is operating between 3 and 11 GHz frequency range, is presented in this paper. The proposed design uses multilayer technology that allows having a compact and broad bandwidth coupler. The design uses elliptically shaped broadside coupled strips and a slot created in a common ground plane of two dielectric substrates with the same shape. The design then being fabricated on 0.8 mm thick FR4 substrates and it occupies the dimension of 30 mm x 15 mm. The simulation and experimental results show a good performance in terms of bandwidth, which covers the entire UWB operation. In addition, detailed analysis of air gap effect for S-parameters and phase difference of the designed coupler is presented in this study.

引用

页码：915 / 926

页数：12

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