A Compact 24-26 GHz IPD-Based 4x4 Butler Matrix for Beam Forming Antenna Systems

被引：0

作者：

Haroun, Ibrahim ^{[1
]}

Lin, Ta-Yeh

Chang, Da-Chiang

Plett, Calvin ^{[1
]}

机构：

[1] Carleton Univ, Ottawa, ON K1S 5B6, Canada

来源：

2012 ASIA-PACIFIC MICROWAVE CONFERENCE (APMC 2012) | 2012年

关键词：

Butler matrix; IPD technology; CPW transmission lines; Branch line couplers;

D O I：

暂无

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

A compact 24-26 GHz low loss 4x4 Butler matrix is implemented in an IPD (integrated passive device) technology and presented in this paper. A modified coplanar waveguide (MCPW) branch line coupler is utilized as the core element of the Butler matrix. The proposed Butler matrix occupies a chip area of 2.2 x 1.9 mm(2) (excluding the I/O test pads). The measured results showed output relative phase errors of less than 5% over a frequency range of 26-29 GHz and less than 13% over 24-25 GHz, and output amplitude imbalances of less than 1.3 dB over a frequency range of 24-27 GHz. The proposed Butler matrix is well suited for use in microwave low-cost, high performance beam forming wireless communications systems.

引用

页码：965 / 967

页数：3