Design of an ultra-broadband high-gain circularly polarized antenna

被引：0
|
作者：
Huang, Jiahui [1 ]
Yang, Zhitao [2 ]
Wang, Yi [3 ]
Tang, Lei [1 ]
机构：
[1] Nanjing Univ Aeronaut & Astronaut, Nanjing, Peoples R China
[2] Sci & Technol Space Phys Lab Beijing, Beijing, Peoples R China
[3] Nanjing Univ Aeronaut & Astronaut, State Key Lab Millimeter Waves, Nanjing, Peoples R China
来源：
2022 CROSS STRAIT RADIO SCIENCE & WIRELESS TECHNOLOGY CONFERENCE, CSRSWTC | 2022年
关键词：
spiral antenna; ultra-broadband; circular polarization; high gain; SPIRAL ANTENNA;
D O I：
10.1109/CSRSWTC56224.2022.10098294
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 paper presents an ultra-broadband high-gain circularly polarized antenna. The antenna is in the form of planar spiral structure and loads resistors at the end of the radiation strips to expand its bandwidth. At the same time, a PEC cavity with a height of lambda/4 is designed below the radiation plane to produce a unidirectional beam and increase the gain. The final design realizes a broadband impedance matching in 0.5 similar to 8GHz (176.5%), AR<3dB in 0.5 similar to 7.5GHz (175%) and the highest gain reaches more than 13dBi.
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页数：3
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