Frequency-Selective Polarization Converter with Ultra-Wideband Linear-to-Circular Conversion and High Selectivity Based on Stair-Case Shape

Authors

  • Kun Liao School of Mechanical and Electronic Engineering Pingxiang University, Pingxiang 337055, China
  • Jie Shu School of Information Engineering Nanchang University, Nanchang 330031, China
  • Ruquan Wen School of Mechanical and Electronic Engineering Pingxiang University, Pingxiang 337055, China
  • Renxia Ning School of Information Engineering Huangshan University, Huangshan 245041, China
  • Zhiming Liu School of Information Engineering Nanchang University, Nanchang 330031, China

DOI:

https://doi.org/10.13052/2026.ACES.J.410710

Keywords:

Reflective polarization converter, staircase shape, tri-modal polarization conversion

Abstract

In this paper, an ultra-wideband and high-selectivity reflective polarization converter is presented, which is based on a simple stair-case shape. The simulation results indicate that the polarization converter achieves ultra-wideband linear-to-circular polarization conversion under linearly polarized incident wave. Its 3 dB axial ratio frequency band is 5.47–16.15 GHz, and its relative bandwidth is 98.8%; besides, linear-to-linear polarization conversion is realized on both sides of the circular polarization band from 4.57 to 5.30 GHz and 16.28 to 18.11 GHz when S11<−10 dB. Therefore, multiple polarization functions are realized using a single simple structure. Moreover, the physical mechanism and surface current distributions of the polarization converter are analyzed. In addition, the sample is processed and tested, verifying the feasibility of our idea.

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Author Biographies

Kun Liao, School of Mechanical and Electronic Engineering Pingxiang University, Pingxiang 337055, China

Kun Liao received the Ph.D. degree in communication and information systems from Nanjing University of Aeronautics and Astronautics (NUAA), China, in 2023. He became a lecturer in Pingxiang University in 2024. His main research interests include antenna design, frequency selective surfaces and metasurfaces.

Jie Shu, School of Information Engineering Nanchang University, Nanchang 330031, China

Jie Shu, born in 2004, is currently pursuing his Bachelor of Engineering degree in Communication Engineering at Nanchang University, China. His research interests include microwave filter design and antenna design.

Ruquan Wen, School of Mechanical and Electronic Engineering Pingxiang University, Pingxiang 337055, China

Ruquan Wen, born in 1981, received a B.S. degree from Hunan University of Science and Technology, China, in 2004 and an M.S. degree from Lanzhou University of Technology in 2009. Her current research interests include signal processing and superconducting materials.

Renxia Ning, School of Information Engineering Huangshan University, Huangshan 245041, China

Renxia Ning, received a M.S. degree from Anhui University, China, in 2009. Her main research interests include metamaterials, terahertz, and micro-nano sensing devices, analog driver integrated circuits, and miniaturized RF antenna design.

Zhiming Liu, School of Information Engineering Nanchang University, Nanchang 330031, China

Zhiming Liu, born in 1989, received a B.S degree from East China University of Technology, China, in 2012, a M.S. degree from Nanchang University in 2015, and a Ph.D. degree from Nanjing University of Aeronautics and Astronautics in 2019. His current research interests include electromagnetic metamaterial device design and application, microwave component and system design, and antenna design.

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Published

2026-07-30

How to Cite

[1]
K. . Liao, J. . Shu, R. . Wen, R. . Ning, and Z. . Liu, “Frequency-Selective Polarization Converter with Ultra-Wideband Linear-to-Circular Conversion and High Selectivity Based on Stair-Case Shape”, ACES Journal, vol. 41, no. 07, pp. 697–703, Jul. 2026.

Issue

2026: Vol 41 Iss 7

Section

General Submission

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