A Switchable Circular Polarization Microstrip Antenna Using a Varactor Diode
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概要
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In this letter a circular polarization microstrip antenna with switchable polarization is proposed. The switchable polarization sense characteristic is realized via a shunt connected varactor tuning diode. The appropriate capacitance of the diode at the reverse bias voltage can alter two circular polarizations, as the tuning diode, which is located near the rectangular slot in the circular patch, is utilized in a perturbation element. The switchable polarization is analyzed using the equivalent circuit model representing the resonances of each orthogonal mode. Simulation, calculated, and measured results agree well.
著者
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Choi Junho
Department Of Computer And Radio Communications Engineering Korea University
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Kim Young-sik
Department Of Computer And Radio Communications Engineering Korea University
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BAIK Jung-Woo
S1 Technology Institute, Samsung S1 Co. Ltd.
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KIM Young-Sik
Department of Radio Communications Engineering, Korea University
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LEE Tae-Hak
Department of Computer and Radio Communications Engineering, Korea University
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