NUMERICAL MODELING OF IMPEDANCE LOADED MULTIARM ARCHIMEDIAN SPIRAL ANTENNAS

被引：17

作者：

CHAMPAGNE, NJ

WILLIAMS, JT

SHARPE, RM

HWU, SU

WILTON, DR

机构：

[1] The Department of Electrical Engineering, University of Houston, Houston

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 1992年 / 40卷 / 01期

关键词：

D O I：

10.1109/8.123365

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 method of moments formulation for the current on arbitrarily shaped thin wires is applied to the problem of radiation and scattering from Archimedian spiral antennas. This formulation includes impedance loading along the wires. Additional analysis is performed to take advantage of structures which exhibit discrete rotational symmetry. This allows the memory storage requirements of the impedance matrix to be reduced. Numerical results for a four-arm Archimedian spiral antenna with and without impedance loading are compared, showing that the loading significantly affects the current distribution and the far-field pattern for the higher order modes.

引用

页码：102 / 108

页数：7

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