Low-Profile Wideband Circularly Polarized Array Antennas Using Integrated Half-Power Quadrature Power Divider
Author
Wen, Lehu
Gao, Steven
Luo, Qi
Hu, Wei
Sanz-Izquierdo, Benito
Yang, Xue-Xia
Attention
2299/26748
Abstract
Low-profile wideband circularly polarized (CP) array antennas using integrated half-power quadrature power divider (HP-QPD) are presented. A novel HP-QPD is first proposed as an important design concept for CP radiation. Detailed analyses show that the proposed HP-QPD can have half-power CP radiation and the remaining half-power transmission with equal-magnitude but quadrature phase difference. Therefore, it can be utilized for designing a 1 \times 2 CP array antenna. Compared to the traditionally designed single-feed or dual-feed CP counterparts, this 1 \times 2 array antenna can have more than four times wider axial ratio (AR) bandwidth with three CP modes and a simple feed network. This 1 \times 2 array antenna was then designed, fabricated, and measured for performance verification. Both measured and simulated results show that this array antenna can have a wide overlapped impedance and AR bandwidth of 7.9% with a thin dielectric thickness of 0.031\lambda {0}. The 1 \times 2 array antenna was further extended to a 1 \times 8 linear array antenna for high gain CP radiation. Measured results show that unidirectional and symmetrical radiation patterns are achieved with high peak realized gain of 15.4 dBic, low profile, and simple feed network.
Publication date
2022-04-11Published in
IEEE Transactions on Antennas and PropagationPublished version
https://doi.org/10.1109/TAP.2022.3164885Other links
http://hdl.handle.net/2299/26748Metadata
Show full item recordRelated items
Showing items related by title, author, creator and subject.
-
A Mutual-Coupling-Suppressed Dual-Band Dual-Polarized Base Station Antenna Using Multiple Folded-Dipole Antenna
Liu, Xuekang; Gao, Steven; Sanz-Izquierdo, Benito; Zhang, Haiwei; Wen, Lehu; Hu, Wei; Luo, Qi; Sumantyo, Josaphat Tetuko Sri; Yang, Xue-Xia (2022-12-01)An interleaved shared-aperture dual-band dual-polarized base station array antenna is proposed in this article. The lower-band (LB) element is realized by using a multiple folded-dipole antenna (MFDA) and four parasitic ... -
Wideband Differentially Fed Dual-Polarized Antenna by Using Three-Strip Transmission Lines
Wen, Le-Hu; Gao, Steven; Luo, Q.; Sanz-Izquierdo, Benito; Ren, Xiaofei; Wu, Jian (2021-07-01)A new method of designing a wideband differentially fed dual-polarized antenna by using three-strip transmission lines (TS-TLs) is presented. A wideband power divider composed of four TS-TLs is firstly proposed and illustrated ... -
A Dual-Polarized Planar Antenna Array Differentially-Fed by Orthomode Transducer
Yang, Q.; Gao, S.; Luo, Q.; Wen, L.; Ren, X.; Wu, J.; Ban, Y. -L.; Yang, X. (2021-05-05)This paper presents a new design of a differentially-fed substrate integrated planar antenna array with dual-polarization. Compared with the traditional dual-polarized antenna arrays, the proposed array antenna has the ...