Broadband Circularly-polarized Crossed-dipole Antenna with Good Gain Stability

Authors

  • Xueyan Song School of Electronic Engineering, Xi’an University of Posts & Telecommunications, Xi’an, 710121, China
  • Zhiyuan Wu School of Electronic Engineering, Xi’an University of Posts & Telecommunications, Xi’an, 710121, China
  • Xuping Li School of Electronic Engineering, Xi’an University of Posts & Telecommunications, Xi’an, 710121, China
  • Yunqi Zhang School of Electronic Engineering, Xi’an University of Posts & Telecommunications, Xi’an, 710121, China
  • Hailong Yang School of Electronic Engineering, Xi’an University of Posts & Telecommunications, Xi’an, 710121, China

DOI:

https://doi.org/10.13052/2022.ACES.J.371109

Keywords:

circularly polarized, cross-dipole, parasitic patches, stable gain, broadband

Abstract

A broadband Circularly Polarized (CP) cross-dipole antenna with the merit of stable gain is proposed. The designed antenna consists of crossed dipoles, parasitic patches, reflectors, and vertical parasitic plates. By adding parasitic patches and parasitic plates, the circular polarization performance of the antenna is significantly improved. Furthermore, the gain value becomes stable in the entire operating frequency band by modifying the structure of the parasitic plates. The final dimension of the presented antenna is  0.76λ0 X 0.76λ0 X 0.28λ0 (λ0 is the wavelength at the center frequency point in the circularly polarized working frequency band). The measured results depict that the Impedance Bandwidth (IBW) is 80.8% (2.03GHz~4.78GHz) and the Axial Ratio Bandwidth(ARBW) is 68.5% (2.35GHz~4.8GHz). Stable gain values, ranging from 6dBic to 7.5dBic, are obtained in the working frequency band, and the average gain can reach 7dBic.

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Author Biographies

Xueyan Song, School of Electronic Engineering, Xi’an University of Posts & Telecommunications, Xi’an, 710121, China

Xueyan Song was born in Henan Province, China, in 1989. She received her B.E. degree in electronic and information engineering from Xidian University, Xi’an, China, in 2012. She received a Ph.D. degree in Electromagnetic Fields and Microwave Technology from Xidian University, Xi’an, China, in 2018.

She joined the School of Electronic Engineering, Xi’an University of Posts and Telecommunications in 2018. Her research interests include artificial magnetic conductors, low RCS antennas, low-profile antennas, frequency-selective surfaces, and reflector antennas.

Zhiyuan Wu, School of Electronic Engineering, Xi’an University of Posts & Telecommunications, Xi’an, 710121, China

Zhiyuan Wu was born in Hubei Province, China, in 1995. He is currently pursuing a Master of Engineering degree in the School of Electronic Engineering, Xi’an University of Posts and Telecommunications. His current research interests include circularly polarized antennas, metamaterials, and array antennas.

Xuping Li, School of Electronic Engineering, Xi’an University of Posts & Telecommunications, Xi’an, 710121, China

Xuping Li was born in Xi’an, Shanxi, China in 1981. He received a Ph.D. degree in electromagnetic fields and microwave technology from Xidian University, Xi’an, China, in 2015. His research interests are antenna theory and engineering.

Yunqi Zhang, School of Electronic Engineering, Xi’an University of Posts & Telecommunications, Xi’an, 710121, China

Yunqi Zhang was born in BaoTou, Inner Mongolia, China. He received a Ph.D. degree from Xidian University, Xi’an, China in 2015. He is currently working at the Xi’an University of Posts & Telecommunications. In 2017 he joined the School of Physics and Optoelectronic Engineering at Xidian University, as a postdoctoral candidate. His research interests include GPS antenna, CP antenna, omnidirectional antenna, and antenna array designs.

Hailong Yang, School of Electronic Engineering, Xi’an University of Posts & Telecommunications, Xi’an, 710121, China

Hailong Yang received a B.S. in Communication Engineering from Heze University, Heze, China, in 2012. He earned M.S. and Ph.D. degrees in Communication Engineering from Xi’an University of Technology, Xi’an, China, in 2015 and 2019, respectively. He joined the faculty of the Electronic Engineering Department, Xi’an University of Posts and Telecommunications, in 2019. His research interests include wave propagation and antenna design.

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Published

2022-11-30

How to Cite

[1]
X. . Song, Z. . Wu, X. . Li, Y. . Zhang, and H. . Yang, “Broadband Circularly-polarized Crossed-dipole Antenna with Good Gain Stability”, ACES Journal, vol. 37, no. 11, pp. 1179–1185, Nov. 2022.

Issue

2022: Vol 37 Iss 11

Section

General Submission

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