A Compact Gap-Waveguide Dual-Polarized Ka-Band Feed for 50dBi Reflector Antennas With Tracking Function

被引：7
|
作者：
Wang, Enlin [1 ,2 ]
Zhang, Tianling [2 ]
Zaman, Ashraf Uz [1 ]
Emanuelsson, Thomas [3 ]
Thorsen, Per-Arne [4 ]
Agneessens, Sam [5 ]
Yang, Jian [1 ]
机构：
[1] Chalmers Univ Technol, Dept Elect Engn, S-41296 Gothenburg, Sweden
[2] Xidian Univ, Dept Elect Engn, Xian 710071, Peoples R China
[3] Ericsson AB, Dept Transport Syst, S-41756 Gothenburg, Sweden
[4] Ericsson AB, Dept Transport Prod, S-41756 Gothenburg, Sweden
[5] Ericsson AB, Dept Res, S-41756 Gothenburg, Sweden
来源：
IEEE ACCESS | 2022年 / 10卷
关键词：
Antenna feeds; Geometry; Antenna measurements; Millimeter wave communication; UHF antennas; Gain measurement; Antenna radiation patterns; Dual-polarized feed; gapwave planar magic-T; feed with tracking functions; ultra-high-gain antenna; W-BAND; ARRAY; BACKHAUL; DESIGN;
D O I：
10.1109/ACCESS.2022.3202314
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A dual-polarized Ka-band feed based on gap waveguide (GW) technology for an ultra-high-gain reflector antenna is presented. The feed provides SUM-beams for data transfer and DIFF-beams for tracking. The whole reflector antenna is composed of the feed and a dual-reflector Cassegraine antenna. The feed has been prototyped, and the measured reflection coefficients for the horizontally and the vertically polarized SUM-beam ports are below -10 dB and -8 dB over 30.8-38 GHz, respectively. The measured feed radiation patterns agree well with the simulated ones. The dual-reflector Cassegraine antenna has been designed and simulated by using GRASP with the simulated far-field function of the proposed feed, showing that the reflector antenna achieves SUM-beam gains above 50 dBi and the null depth of the DIFF-beams are more than 30 dB below the maximum of SUM-beams.
引用
收藏
页码：91622 / 91630
页数：9
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