Design of a Compact Circularly Polarized Dual-Mode Monopulse Cavity-Backed Substrate Integrated Waveguide Antenna

被引：26

作者：

Gharibi, Hassan ^{[1
]}

Kashani, Farrokh Hojjat ^{[1
]}

机构：

[1] Iran Univ Sci & Technol, Dept Elect Engn, Tehran, Iran

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2015年 / 14卷

关键词：

Cavity-backed; circularly polarized antenna; multimode monopulse antenna; substrate integrated waveguide (SIW); SLOT ANTENNA; FEED;

D O I：

10.1109/LAWP.2014.2371062

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：

A novel compact dual-mode monopulse cavity-backed substrate integrated waveguide (SIW) antenna is proposed. The antenna consists of an array of two circular-polarized cavity-backed SIW antennas, a dual-mode section, and two input ports. TE10 and TE20 modes are excited in the multimode section to produce sum and difference pattern, respectively. A prototype of the proposed monopulse antenna at the center frequency of 10 GHz is manufactured. Measured results show 10-dB return-loss bandwidth of 4.4%, axial-ratio bandwidth of 1.9%, 9.2 dBi gain, and 25 dB null depth. The proposed antenna has good monopulse radiation characteristics and can be easily integrated with planar circuits.

引用

页码：519 / 522

页数：4

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