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
收藏
页码：965 / 967
页数：3
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