Efficient SIW-Feed Network Suppressing Mutual Coupling of Slot Antenna Array

被引：48

作者：

Diman, Aida Abdi ^{[1
]}

Karami, Farzad ^{[1
]}

Rezaei, Pejman ^{[1
]}

Amn-E-Elahi, Ali ^{[1
]}

Mousavirazi, Zahra ^{[2
]}

Denidni, Tayeb A. ^{[2
]}

Kishk, Ahmed A. ^{[3
]}

机构：

[1] Semnan Univ, Elect & Comp Engn Fac, Semnan 3513119111, Iran

[2] Univ Quebec, INRS EMT, Montreal, PQ H5A 1K6, Canada

[3] Concordia Univ, Dept Elect & Comp Engn, Montreal, PQ H3G 1M8, Canada

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2021年 / 69卷 / 09期

关键词：

Decoupling feed network; directional coupler; mutual coupling suppression; slot array antennas; substrate-integrated waveguide (SIW); WAVE-GUIDE; REDUCTION; DESIGN;

D O I：

10.1109/TAP.2021.3069557

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 communication, an effective method to suppress mutual coupling between two substrate-integrated waveguide (SIW) slot antenna arrays is presented. To achieve that, a decoupling feed network is used. The feed network is composed of a two-layer directional coupler that is connected to two SIW-slot antenna arrays directly to establish an indirect coupling with controlled magnitude and phase, which can effectively reduce the direct coupling generated by surface waves between the array elements. A 2 x 4 array of slot antenna as well as the proposed decoupling network is designed, fabricated, and measured to illustrate the effectiveness of the proposed technique. The measured and simulated results verified the good decoupling performance. The measured mutual coupling is about -35 dB at the center frequency without negatively affecting the return loss and radiation patterns. The proposed mechanism of the decoupling network is simple and successfully used in SIW slot antenna arrays.

引用

页码：6058 / 6063

页数：6

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