Design of Electronically Steerable Passive Array Radiator (ESPAR) antennas

被引：0

作者：

Gyoda, K ^{[1
]}

Ohira, T ^{[1
]}

机构：

[1] ATR, Adapt Commun Res Labs, Seika, Kyoto 6190288, Japan

来源：

IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM, VOLS 1-4: TRANSMITTING WAVES OF PROGRESS TO THE NEXT MILLENNIUM | 2000年

关键词：

D O I：

暂无

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：

Electronically Steerable Passive Array Radiator (ESPAR) antennas are proposed fur low-cost analog adaptive beamforming. The configuration and design of these antennas and some simulation results, especially on their beam/null steering capability, am presented. From die results of a numerical analysis, it was found that 5-element ESPAR antennas can offer a beam gain of 9dBi +/- 1dB and a null deeper than -50dBi in an arbitrary direction. In this ease. the beam gain and null were obtained separately, It was also found that 7-element ESPAR antennas can achieve continuous steering in almost all directions, with a simultaneous 8dBi beam gain and -30dBi null. excluding the region where the direction of the beam and the direction of the null are within about 45-degrees however 5-element ESPAR antennas are unable to achieve steering In a number of directions. even with a simultaneous 5dBi beam gain and -15dBi null.

引用

页码：922 / 925

页数：4

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