Dual Circularly Polarized Aperture Coupled Patch Antenna for Diversity Reception

被引：0
|
作者：
Joseph, Manoj [1 ]
Beegum, S. Femina [1 ]
Joyas, Saji [1 ]
Girija, J. [1 ]
机构：
[1] Indian Space Res Org, Vikram Sarabhai Space Ctr, Trivandrum, Kerala, India
来源：
2023 IEEE WIRELESS ANTENNA AND MICROWAVE SYMPOSIUM, WAMS | 2023年
关键词：
aperture coupling; RHCP/LHCP; diversity; quadrature hybrid; dual circularly polarized;
D O I：
10.1109/WAMS57261.2023.10242849
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 dual-port dual circularly polarized aperture coupled patch antenna designed for S-band telemetry application is presented in this paper. A microstrip line quadrature hybrid is used as the feed to excite two orthogonal modes of the patch. An H-shaped slot is used to couple fields to the patch antenna. An air dielectric of 6mm thickness is used between the patch and the quadrature hybrid feed to achieve a broad bandwidth. The antenna is having a 2:1 VSWR bandwidth of 22% centered at 2.25GHz, axial ratio bandwidth of 10%, and 1dBi gain variation within 7.5% bandwidth with a peak gain of 7.8dBi. The antenna is RHCP/LHCP polarized when excited from respective ports with an axial ratio of less than 3dB. The overall dimension of the antenna is 75mm x 75mm x 7.5mm.
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页数：3
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