Aritra Roy, K. J. Vinoy, N. Martin, C. Quendo, S. Mallégol
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引用次数: 2
Abstract
A hybrid technique of using an electromagnetic (EM) absorbing material and a set of resistors are proposed to improve the low frequency matching and axial ratio of an Archimedean spiral antenna for $2-18\ GHz$. A cavity of depth 5 mm is maintained to make the structure extremely compact. Simulations are performed to analyze the effects of these approaches separately. A Wideband matching and polarization purity are observed over the entire frequency range with a maximum right-hand circular (RH) gain of 8.2 dBiC.
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