Volume 32, Issue 4 e23066
ORIGINAL ARTICLE

A mode-combination-based polarization-reconfigurable antenna

Li Ran

Li Ran

School of Electronic and Information Engineering, Nanjing University of Information Science and Technology, Nanjing, China

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Dan-Ping Yang

Dan-Ping Yang

School of Electronic and Information Engineering, Nanjing University of Information Science and Technology, Nanjing, China

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Shen-Yun Wang

Corresponding Author

Shen-Yun Wang

School of Electronic and Information Engineering, Nanjing University of Information Science and Technology, Nanjing, China

Research Center of Applied Electromagnetics, Nanjing University of Information Science and Technology, Nanjing, China

Correspondence

Shen-Yun Wang, School of Electronic and Information Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China.

Email: [email protected]

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First published: 06 January 2022
Citations: 3

Funding information: Priority Academic Program Development of Jiangsu Higher Education Institutions

Abstract

In this article, a novel polarization-reconfigurable antenna based on the theory of linearly polarized (LP) modes combination is proposed. The antenna can electronically alter its polarization states between left-hand circular polarization, right-hand circular polarization and continuous linear polarization. A corner-truncated square patch with two isolated aperture-coupling feeds is used as the main radiator. By independently exciting the two feeding ports, the proposed antenna can work in two isolated orthogonal LP modes at 2.45 GHz, respectively. By simultaneously exciting the two feeding ports with different combination of amplitudes and phases, two circularly polarized (CP) modes and LP modes polarized at arbitrary azimuth can be obtained. The simulated and measured gains for all the polarization states are 7.3 dB at 2.5 GHz. The –10 dB impedance bandwidth ranging from 2.35 to 2.58 GHz is fully overlapped for all the polarization states.

DATA AVAILABILITY STATEMENT

Data sharing not applicable to this article as no datasets were generated or analysed during the current study.

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