Single-Feed Dual-Band Dual-Mode and Dual-Polarized Microstrip Antenna based on Metamaterial Structure

W.-Q. Cao Institute of Communications Engineering, PLA University of Science and Technology, 2 Biaoying at Yudao Street, Nan Jing, Jiangsu 210007, China

B.-N. Zhang Institute of Communications Engineering, PLA University of Science and Technology, 2 Biaoying at Yudao Street, Nan Jing, Jiangsu 210007, China

T.-B. Yu Institute of Communications Engineering, PLA University of Science and Technology, 2 Biaoying at Yudao Street, Nan Jing, Jiangsu 210007, China

A. J. Liu Institute of Communications Engineering, PLA University of Science and Technology, 2 Biaoying at Yudao Street, Nan Jing, Jiangsu 210007, China

S.-J. Zhao Institute of Communications Engineering, PLA University of Science and Technology, 2 Biaoying at Yudao Street, Nan Jing, Jiangsu 210007, China

D.-S. Guo Institute of Communications Engineering, PLA University of Science and Technology, 2 Biaoying at Yudao Street, Nan Jing, Jiangsu 210007, China

Z.-D. Song Fourth Institute of the Second Artillery Equipment Academy, Beijing 100085, China

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Abstract

A novel single-feed dual-band dual-mode and dual-polarized microstrip antenna based on metamaterial structure is proposed. The composite right/left-handed transmission line (CRLH TL) theory is used to design this antenna. Dual-mode can be obtained by exciting the antenna with a monopolar radiation in the n = 0 mode and a patch-like radiation pattern in the n = +1 mode, respectively. As the geometry of the radiating patch does not affect the infinite wavelength mode, circular polarization (CP) is obtained for the n = +1 mode by truncating the square radiating patch with the n = 0 mode, linear polarization (LP) staying unchangeable. Results of a fabricated one illustrate that this antenna is valuable in practical application for its low-profile, easy fabrication, radiation pattern selectivity and polarized diversity.

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Single-Feed Dual-Band Dual-Mode and Dual-Polarized Microstrip Antenna based on Metamaterial Structure

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Single-Feed Dual-Band Dual-Mode and Dual-Polarized Microstrip Antenna based on Metamaterial Structure

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