Design of Self-Diplexing Substrate Integrated Waveguide Cavity-Backed Slot Antenna

被引：118

作者：

Mukherjee, Soumava ^{[1
]}

Biswas, Animesh ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Elect Engn, Kanpur 208016, Uttar Pradesh, India

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2016年 / 15卷

关键词：

Cavity-backed slot; self-diplexing antenna; substrate integrated waveguide;

D O I：

10.1109/LAWP.2016.2535169

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 design technique to realize planar self-diplexing slot antenna using substrate integrated waveguide (SIW) technology is presented. The proposed antenna uses a bowtie-shaped slot backed by SIW cavity, which is excited by two separate feedlines to resonate at two different frequencies in X-band (8-12 GHz). By properly optimizing the antenna dimensions, a high isolation of better than 25 dB between two input ports is achieved, which helps to introduce self-diplexing phenomenon in the proposed design. The behavior of the individual cavity modes at two resonant frequencies is explained using half-mode theory. The proposed antenna resonates at 9 and 11.2 GHz with unidirectional radiation pattern and a high gain of 4.3 and 4.2 dBi, respectively.

引用

页码：1775 / 1778

页数：4

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