SIW-based Circularly Polarized Slot Antenna Array for Millimeter-Wave Applications

被引：4

作者：

Singh, Maharana Pratap ^{[1
]}

Mishra, Priyank ^{[1
]}

Hirokawa, Jiro ^{[2
]}

Ghosh, Saptarshi ^{[1
]}

机构：

[1] Indian Inst Technol Indore, Dept Elect Engn, Indore 453552, Madhya Pradesh, India

[2] Tokyo Inst Technol, Dept Elect & Elect Engn, Tokyo, Japan

来源：

2022 IEEE MICROWAVES, ANTENNAS, AND PROPAGATION CONFERENCE, MAPCON | 2022年

关键词：

Substrate integrated waveguide (SIW); slot antenna; circularly polarized antenna (CP); millimeter-wave; antenna array;

D O I：

10.1109/MAPCON56011.2022.10047245

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 paper, a substrate integrated waveguide (SIW) based circularly polarized slot antenna array is presented for millimeter-wave (mm-wave) wireless applications at 28 GHz. The proposed antenna geometry comprises two orthogonal slots engraved on the top layer of the SIW cavity. Upon optimization of slot dimensions and their positions inside the SIW cavity, one left-handed circularly polarized (LHCP) radiation has been obtained at 28 GHz with a decent maximum gain of 6.57 dBic in the broadside direction. To improve the gain of the antenna, a 1x2 antenna array with a SIW feed network has been designed and demonstrated. The array geometry exhibits the maximum gain of 9.25 dBic with an impedance bandwidth of 1.77 GHz (27.33 29.10 GHz) and an axial ratio bandwidth of 200 MHz (27.95 28.15 GHz). Furthermore, the structure features a simple topology, high efficiency, and low cross-polarization, which makes it suitable for mm-wave applications.

引用

页码：1318 / 1322

页数：5

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