TIME-DOMAIN ANALYSIS OF YAGI-UDA ANTENNAS USING THE FD-TD METHOD

被引：2

作者：

KASHIWA, T ^{[1
]}

TANAKA, S ^{[1
]}

FUKAI, I ^{[1
]}

机构：

[1] HOKKAIDO UNIV,FAC ENGN,MASTERS PROGRAM,SAPPORO,HOKKAIDO 060,JAPAN

来源：

ELECTRONICS AND COMMUNICATIONS IN JAPAN PART I-COMMUNICATIONS | 1994年 / 77卷 / 10期

关键词：

YAGI-UDA ANTENNA; FD-TD METHOD; WIRE ANTENNA; TRANSIENT ANALYSIS; PULSE RESPONSE;

D O I：

10.1002/ecja.4410771009

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：

The fundamental importance of the Yagi-Uda antenna is its structural simplicity and its director and reflector actions. To fully comprehend the working principle of this antenna, it is important to be able to visualize the radiation mechanism directly in the time domain. In this paper, transient analysis of the Yagi-Uda antenna is performed using the FD-TD method. First, the input impedances and directivities obtained by this method are compared with the moment method, good agreement was found between the two methods, and the validity of this method was demonstrated. Next, the quasi-impulse responses of the antenna are calculated. The field pattern obtained by this method was visualized in the time domain. The radiation from the antenna edge is shown in the early time responses, and dispersion of the pulse shape with the passage of time is shown in late time responses. Moreover, the difference of characteristics due to the length of parasitic elements is shown by time-domain observation.

引用

页码：96 / 105

页数：10

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