A Multilayered SIW-Based Circularly Polarized CRLH Leaky Wave Antenna

被引：28
作者：
Agarwal, Ruchi [1 ,2 ]
Yadava, R. L. [2 ]
Das, Sushrut [1 ]
机构：
[1] Indian Sch Mines Dhanbad, Indian Inst Technol, Dept Elect Engn, Dhanbad 826004, Bihar, India
[2] Galgotias Coll Engn & Technol, Dept Elect & Commun Engn, Greater Noida 201310, India
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2021年 / 69卷 / 10期
关键词：
Impedance; Antennas; Substrates; Dispersion; Polarization; Slot antennas; Power transmission lines; Circularly polarized (CP); composite right; left-handed transmission line (CRLH-TL); leaky-wave antenna (LWA); substrate integrated waveguide (SIW); SCANNING ANTENNA; WIDE-ANGLE; BEAM; RADIATION;
D O I：
10.1109/TAP.2021.3082618
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：
In this article, a multilayered circularly polarized (CP) leaky-wave antenna (LWA) is proposed, based on the composite right/left-handed (CRLH) transmission line concept. The proposed design is composed of a substrate integrated waveguide (SIW) structure and its multilayered unit cell consists of H-shaped interdigital (ID) slots on the top with a truncated patch, sandwiched between the two substrates. Circular slots are introduced periodically on the ground plane to achieve wideband circular polarization. Proposed CRLH SIW-based LWA shows the capability of continuous beam scanning from -38 degrees to +71 degrees within the frequency range of 7.6-10.6 GHz while maintaining good circular polarization in the frequency range of 8.3-10.6 GHz. The peak gain of the proposed LWA is 10 dB and the average radiation efficiency is 86.1% over the complete impedance bandwidth. The measured results of the fabricated prototype are in good agreement with the simulated ones. The proposed antenna can be used for X-band radar and satellite applications.
引用
收藏
页码：6312 / 6321
页数：10
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