A Dual-Polarization Slotted Waveguide Array Antenna With Polarization-Tracking Capability and Reduced Sidelobe Level

被引：31
|
作者：
Gatti, Roberto Vincenti [1 ]
Rossi, Riccardo [1 ]
机构：
[1] Univ Perugia, Dept Engn, I-06125 Perugia, Italy
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2016年 / 64卷 / 04期
关键词：
Dual-polarized antennas; phased arrays; polarization-tracking; slot antennas; slot arrays;
D O I：
10.1109/TAP.2016.2526645
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：
This communication presents an innovative dualpolarization antenna working at Ku band (14 divided by 14.5 GHz) based on slotted waveguide array (SWGA) technology. The proposed solution allows to simultaneously generate two orthogonal circular polarizations that are combined to generate two orthogonal linear polarizations with polarization-tracking capabilities and very low cross-polarization level thanks to the symmetry of the structure. The antenna is composed of two interleaved slotted ridge waveguide arrays connected to a polarizer, realized with an array of triangular-base ridged cavities. Slots, located at the waveguide centerline, are excited by means of posts avoiding offsets and leading to a regular grid arrangement. Radiating elements are placed in a triangular lattice to minimize the azimuth sidelobe level and provide high EIRP levels.
引用
收藏
页码：1567 / 1572
页数：6
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