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

页码：91622 / 91630

页数：9

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