Unidirectional H-Shaped Slot Antenna Backed By A Shallow Cylindrical Cavity For The 5.8 Ghz Ism Band

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS(2018)

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Abstract
A compact slot antenna backed by a shallow cylindrical cavity for high-gain unidirectional radiation in the 5.8 GHz ISM is presented. The antenna has a 96% efficiency, 8 dBi gain, 12 dB front-to-back ratio, and a -10 dB impedance bandwidth of 7.5%. A prototype of the antenna was fabricated and measured and the measurement results were verified against the simulated ones.
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Key words
cavity-backed slot antenna, H-shaped slot antenna, unidirectional antenna, 5.8 GHz ISM band
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