INPUT IMPEDANCE, RADIATION-PATTERN, AND RADAR CROSS-SECTION OF SPIRAL ANTENNAS USING FDTD

被引：33

作者：

PENNEY, CW

LUEBBERS, RJ

机构：

[1] Department of Electrical Engineering, Pennsylvania State University, University Park

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 1994年 / 42卷 / 09期

关键词：

D O I：

10.1109/8.318663

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A finite-difference time-domain (FDTD) analysis of spiral antennas is performed to calculate input impedance, antenna gain, and scattering. A semicircular spiral mounted on a dielectric substrate was simulated for computing the input impedance versus frequency. The gain and scattering computations were performed on a square Archimedean spiral mounted in a ground plane with a cavity backing. Total-field FDTD calculations are used to compute the impedance and gain patterns, while a specially modified scattered-field approach for aperture antennas in infinite ground planes is used for the scattering results. Comparisons are made with published impedance measurements and gain and scattering calculations done with a finite element method. Good results were obtained for impedance, radiation, and scattering.

引用

页码：1328 / 1332

页数：5

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