A 7 8 Butler Matrix-Fed Multibeam Antenna Based on Substrate Integrated Waveguide Technology

被引：8

作者：

Liu, Zhi-Peng ^{[1
]}

Chen, Fu-Chang ^{[1
]}

Qin, Chong ^{[1
]}

机构：

[1] South China Univ Technol, Sch Elect & Informat Engn, Guangzhou 510640, Peoples R China

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2023年 / 22卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Butler matrices; Butler matrix (BM); millimeter-wave (mm-wave); multibeam antenna; substrate integrated waveguide (SIW); COMPACT; ARRAY; PHASE; BEAM;

D O I：

10.1109/LAWP.2022.3213786

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：

In this letter, a novel 7 x 8 Butler matrix (BM) operating in the millimeter-wave band is presented. It is composed of a 3x4 BM, two 3x4-like BM, two phase shifters and two couplers, achieving equal amplitude output distribution and seven output phase differences (0 degrees, +/- 45 degrees, +/- 90 degrees, +/- 135 degrees). The proposed 7 x 8 BM can be realized by dual-layer substrate integrated waveguide structure easily, which is difficult formerging the two central ports of the traditional 8x8 BM. To verify the concept, a multibeam antenna fed by the proposedBMis designed and fabricated, achieving seven beams in the frequency range of 26.5-29.5 GHz. Compared with counterparts, the proposed antenna features compact size, broadside radiation, and relatively wide bandwidth.

引用

页码：397 / 401

页数：5

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