Compact T-complementary split-ring resonator antenna and antenna array

Huayan Jin, Chi-Yang Chiou, An-Chien Li, Chung-Yi Li and Kuo-Sheng Chin

Journal of Electromagnetic Waves and Applications, 2021, vol. 35, issue 16, 2193-2209

Abstract: A compact T-complementary split-ring resonator (CSRR) antenna was developed. Different from traditional designs, the proposed CSRR functioned not only as a loading structure but also as a radiator. The operation of the T-CSRR antenna was similar to that of a slot antenna with a gain of 3.1 dBi. Because of the loading effect of the CSRR, the size of the radiator of the proposed antenna was only 0.14λ0 × 0.26λ0. The circuit sizes of the proposed T-CSRR antenna were 50% and 74% smaller than those of the traditional half-wavelength slot and T-shaped monopole antennas, respectively. For further gain enhancement, the performance of two feasible array arrangements, namely collinear and parallel arrays with 1 × 4 T-CSRR elements, were compared, which revealed that the parallel 1 × 4 T-CSRR antenna array can achieve a gain of 9 dBi at 2.45 GHz.

Date: 2021
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DOI: 10.1080/09205071.2021.1934903

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