Fdtd Analysis of a Conical Microstrip Antenna on Ebg Substrate
نویسندگان
چکیده
In this paper, the finite difference time domain method in spherical coordinates is used to analyze a microstrip conical antenna with a dielectric electromagnetic band-gap (EBG) structure as substrate. The voltage standing wave ratio, matched impedance, maximum gain as well as far-field radiation patterns, are presented. Our study suggests that the microstrip conical antenna on EBG substrate holds sufficient potential as a low-profile antenna with very wideband and high gain characteristics. A time domain study has shown that the antenna distorts the excitation pulse in a moderate way. These features make the proposed antenna suitable for both ultra-wide band systems and as wind-band scan antenna.
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