A novel electronically scannable log-periodic leaky-wave antenna

被引：11

作者：

Augustin, G ^{[1
]}

Shynu, SV ^{[1
]}

Aanandan, CK ^{[1
]}

Mohanan, P ^{[1
]}

Vasudevan, K ^{[1
]}

机构：

[1] Cochin Univ Sci & Technol, Dept Elect, Ctr Res Electromagnet & Antennas, Cochin 682022, Kerala, India

来源：

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2005年 / 45卷 / 02期

关键词：

leaky-wave antenna; beam steering; log-periodic leaky slots; wide bandwidth;

D O I：

10.1002/mop.20757

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：

An innovative phaseshifterless, wideband, microstrip leaky-wave antenna with an electronically steerable dual-pencil-beam pattern in the H-plane is presented. The log-periodic geometry of the leaky slots of the antenna results in a wide bandwidth of 25.19%. The fan beam can be steered up to 14 degrees over the wide resonating band of the antenna. The beam is also steerable at a fixed frequency, by reactivelty loading the slots and a maximum steering angle of about 14 degrees is observed for different capacitor values with an improved bandwidth of 33.3%. This concept is studied using passive components, but it can be extended to varactors. (c) 2005 Wiley Periodicals, Inc.

引用

页码：163 / 165

页数：3