Ka-Band Circularly-Polarized Antenna Array with Wide Gain and Axial Ratio Bandwidth

被引：0
|
作者：
Raeesi, Amir [1 ]
Al-Saedi, Hussam [1 ]
Abdel-Wahab, Wael M. [1 ]
Gigoyan, Suren [1 ]
Naeini, Safieddin Safavi [1 ]
机构：
[1] Univ Waterloo, Ctr Intelligent Antenna & Radio Syst CIARS, Elect & Comp Engn Dept, Waterloo, ON N2L 3G1, Canada
来源：
2021 15TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION (EUCAP) | 2021年
基金：
加拿大自然科学与工程研究理事会;
关键词：
antennas; electormagnetidcs; propagation; measurements;
D O I：
暂无
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：
In this paper, the design, simulation and measurement results of a 2x2 circularly polarized microstrip antenna sub-array at Ka-band are presented. The proposed antenna sub-array employs the sequential rotation technique for improvement of AR bandwidth with high circular polarization purity without degrading the circularly polarized gain. The 3-dB gain reduction due to using sequential rotation technique is compensated by employing an antenna element with wide axial ratio bandwidth. The antenna array has a wide impedance bandwidth (S11< -10 dB) of 6.5 GHz from 26-32.5 GHz. The antenna has a wide axial ratio bandwidth (AR< 3 dB) of 6.2 GHz from 25.4-31.6 GHz with high circular polarization purity. The 3-dB gain bandwidth of the antenna is from 25.5-31.2 GHz and the peak gain is 12.1 dBic. The antenna is fabricated through multilayer printed circuit board process and has a size of 18.5 mm x 18.5 mm x 1.02 mm.
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页数：5
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