Printed Dual-Layer Three-Way Directional Coupler Utilized as 3 x 3 Beamforming Network for Orthogonal Three-Beam Antenna Array

被引：21

作者：

Ding, Kejia ^{[1
]}

Fang, Xiaoxing ^{[1
]}

Wang, Yazhou ^{[2
]}

Chen, Aixin ^{[3
]}

机构：

[1] Beihang Univ, Res Inst Unmanned Aerial Vehicle, Beijing 100191, Peoples R China

[2] RF Micro Devices Inc, Boston Design Ctr, Billerica, MA 01821 USA

[3] Beihang Univ, Sch Elect & Informat Engn, Beijing 100191, Peoples R China

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2014年 / 13卷

基金：

中国国家自然科学基金;

关键词：

Antenna array; beamforming network; directional coupler; multibeam antenna; MATRIX;

D O I：

10.1109/LAWP.2014.2321971

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：

We present a novel printed dual-layer three-way directional coupler, which can be utilized as 3 x 3 beamforming network (BFN) to provide orthogonal three-beam switching capability. The three-way directional coupler is a passive component with six input/output ports. The signal injected into the input port is equally distributed into the three output ports, with a constant phase difference of -120 degrees, 0 degrees, or +120 degrees. Simulation and measurement results show that within 7% relative bandwidth, good matching, high isolation, equal power division, and constant phase difference have been achieved simultaneously. Utilizing the three-way directional coupler as a 3 x 3 BFN, an orthogonal three-beam antenna array for 5.8-GHz application has been designed, fabricated, and tested to verify its capability experimentally.

引用

页码：911 / 914

页数：4

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