A Wideband Non-Uniform Metasurface-Based Circularly Polarized Reconfigurable Antenna

IEEE Access - Tập 9 - Trang 42325-42332 - 2021
Huy Hung Tran1,2, Cong Danh Bui3,4, Nghia Nguyen-Trong5, Truong Khang Nguyen3,4
1Faculty of Electrical and Electronic Engineering, Phenikaa University, Hanoi, Vietnam
2Phenikaa Research and Technology Institute (PRATI), A&A Green Phoenix Group JSC, Hanoi, Vietnam
3Division of Computational Physics, Institute for Computational Science, Ton Duc Thang University, Ho Chi Minh City, Vietnam
4Faculty of Electrical and Electronics Engineering, Ton Duc Thang University, Ho Chi Minh City, Vietnam
5School of Electrical and Electronic Engineering (EEE), The University of Adelaide, Adelaide, SA, Australia

Tóm tắt

This paper presents a low-profile circularly polarized (CP) antenna with wideband and polarization-reconfigurable characteristics. The proposed antenna consists of a truncated-corner patch working as a CP source and a non-uniform metasurface (MS) acting as parasitic elements for performance enhancement. The non-uniform MS is utilized to produce additional operating bands in the higher frequency range, which are then combined with the lower band produced by the driven patch to significantly broaden the overall operating bandwidth. The polarization switching mechanism is based on the ON/OFF states of two p-i-n diodes. The fabricated prototype shows the measured overlapped bandwidth between -10 dB impedance and 3-dB axial ratio is 25.6% and peak broadside gain is 7.3 dBic.

Từ khóa

#Circular polarization #reconfigurability #patch antenna #wideband #metasurface

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IEEE Access

Tập 9

42325-42332

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