A High Gain and Broadband C-Band Aperture-Coupled Patch Antenna |
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| Authors: | Chunheng Liu Yueguang Lu Chunlei Du and Xiangang Luo |
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| Institution: | (1) State Key Laboratory of Optical Technologies for Microfabrication, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, Sichuan Province, 610209, Republic of China;(2) The Northern Institute of Electronic Equipment of China, Beijing, 100083, Republic of China |
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| Abstract: | A aperture-coupled patch antenna is designed with parasitic elements connecting to the rectangle ring on the bottom of antenna
substrate through metal vias, which lead the current induced by patch radiator to the top surface of antenna substrate. Therefore,
the effective radiation is enhanced and higher gain is achieved. The bandwidth is broadened simultaneously due to the structure
of aperture-coupled patch antenna with parasitic elements. Compared to the conventional aperture-coupled patch antenna, the
antenna gain increases averagely 2 dB due to the novel structure. Compared to patch antenna of electromagnetic band-gap, the
dimensions of novel patch antenna greatly decreases, which can be used as element in the array antenna. Two kinds manufactured
antenna are both measured in an anechoic chamber. The good agreements between numerical simulation and experimental prototype
have been obtained. |
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| Keywords: | Aperture-coupled patch antenna Array antenna Microstrip antenna |
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