A Wideband Circularly Polarized Antenna Using Substrate Integrated Waveguide and Truncated-Corner Patch Loaded Slot

被引：6
|
作者：
Agrawal, Meha [1 ]
Kumar, Trivesh [1 ]
机构：
[1] Indian Inst Informat Technol Design & Mfg, Dept Elect & Commun, Jabalpur, India
来源：
WIRELESS PERSONAL COMMUNICATIONS | 2023年 / 131卷 / 01期
关键词：
Cavity-backed antenna; Circularly polarized; Patch antenna; Substrate integrated waveguide antenna; Wideband antenna; DESIGN; ARRAY;
D O I：
10.1007/s11277-023-10435-y
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
A wideband circularly polarized antenna based on the substrate integrated waveguide (SIW) is investigated and presented for mobile satellite applications. Initially, a rectangular-slot is etched on the top layer of the SIW cavity. A truncated patch from the one corner (top left) is loaded inside the slot to obtain the two pairs of orthogonal degenerate modes TE130/TE310 and TE230/TE320. This truncated-corner patch helps to bring the orthogonal modes closer to obtain the wideband circular polarization. Further, a rotated rectangular-slot is incorporated inside the patch to enhance the circular polarization bandwidth. The antenna exhibits a relative impedance bandwidth of 20% (10.87-3.275 GHz) and an axial ratio bandwidth 11.50-12.26 GHz (6.4%). The broadside radiation characteristics are achieved with the peak gain of 6.3dBic and 7.0dBic at the two working frequencies 11.5 GHz and 12.0 GHz respectively.
引用
收藏
页码：399 / 413
页数：15
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