Coaxial Periodic Leaky Wave Antenna with Narrow Beamwidth and Improved Broadside Gain

被引：0
|
作者：
Yancy, N. [1 ]
Mandal, Mrinal Kanti [1 ]
Shaw, Ravi [1 ]
机构：
[1] IIT Kharagpur, Dept E & ECE, Kharagpur, W Bengal, India
来源：
2018 IEEE INDIAN CONFERENCE ON ANTENNAS & PROPOGATION (INCAP) | 2018年
关键词：
Leaky Wave Antenna (LWA); broadside radiation; coaxial transmission line;
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：
This paper presents a periodic leaky wave antenna (LWA) using a coaxial cable. Leaky mode radiation is obtained from periodic slots etched on the outer conductor of the cable. Further, a periodic impedance matching unit is used to improve radiation through broadside. The main beam scans from -19 degrees in the backward direction to +13 degrees in the forward direction through broadside when the operating frequency is changed from 8 GHz to 11.5 GHz. The impedance matching unit helps to improve the broadside gain by 9.3 dB. The measured broadside beam width is 6 degrees at 9.9 GHz, with a gain of 10.26 dBi. Lateral dimension of the antenna is just 6.3 mm and can be easily integrated in a microwave system.
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页数：4
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