A mode‐combination‐based polarization‐reconfigurable antenna. Issue 4 (6th January 2022)

• Record Type: Journal Article
• Authors: Ran, Li; Yang, Dan‐Ping; Wang, Shen‐Yun
• Is Part Of: International journal of RF and microwave computer-aided engineering. Volume 32:Issue 4(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-01-06
• Subjects: continuous linear polarization -- mode combination -- polarization reconfigurable antenna; Microwave devices -- Computer-aided design -- Periodicals; Computer-aided engineering -- Periodicals; 621.3813
• DOI: 10.1002/mmce.23066
• Languages: English
• ISSNs: 1096-4290

Abstract

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.