3-D-Printed Circularly Polarized Twisted-Ridge Horn Antenna

被引：21
作者：
Lu, Kai [1 ,2 ]
Leung, Kwok Wa [3 ,4 ,5 ]
Yang, Nan [1 ,2 ]
机构：
[1] City Univ Hong Kong, State Key Lab Terahertz & Millimeter Waves, Dept Elect Engn, Kowloon, Hong Kong, Peoples R China
[2] Sun Yat Sen Univ, Sch Elect & Informat Technol, Guangzhou 510006, Peoples R China
[3] City Univ Hong Kong, State Key Lab Terahertz & Millimeter Waves, Kowloon, Hong Kong, Peoples R China
[4] City Univ Hong Kong, Dept Elect Engn, Kowloon, Hong Kong, Peoples R China
[5] CityU Shenzhen Res Inst, Shenzhen Key Lab Millimeter Wave & Wideband Wirel, Shenzhen 518057, Peoples R China
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2021年 / 69卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Horn antennas; Antenna measurements; Broadband antennas; Wideband; Prototypes; 3-D printed antenna; broadband antenna; circular polarization; horn antenna; ridged horn;
D O I：
10.1109/TAP.2020.3031764
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 novel wideband circularly polarized (CP) horn antenna with a pair of twisted ridges is investigated in this communication. The wide impedance bandwidth is obtained by adapting a pair of exponential-shaped ridges, whereas the wide axial ratio (AR) bandwidth is achieved by twisting the ridges. The impedance matching and AR can be tuned easily and independently, which is an attractive feature of the design. An X-band right-hand circular polarization (RHCP) design was simulated with CST Microwave Studio. Its metal-printed prototype was fabricated to validate the simulation. The measured 15 dB impedance and 3 dB AR bandwidths are 53% (7.43-12.80 GHz) and 65% (7.63-15.00 GHz), respectively, with an overlapping bandwidth of 51% (7.63-12.80 GHz). The measured peak antenna gain is between 8.0 and 10.1 dBic in the operating band.
引用
收藏
页码：1746 / 1750
页数：5
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