Compact SIW Leaky-Wave Antenna With Open-Stopband Suppression

被引：4
|
作者：
Ni, Hao [1 ]
Gu, Xin [1 ]
Wu, Ke [2 ]
Luo, Guo Qing [3 ]
Liu, Leilei [1 ]
机构：
[1] Nanjing Univ Posts & Telecommun, Coll Elect & Opt Engn, Nanjing 210003, Peoples R China
[2] Polytech Montreal, Polygrames Res Ctr, Dept Elect Engn, Montreal, PQ H3T 1J4, Canada
[3] Hangzhou Dianzi Univ, Sch Elect & Informat, Key Lab RF Circuits & Syst, Minist Educ, Hangzhou 310018, Peoples R China
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2023年 / 22卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Compact; leaky-wave antenna (LWA); open-stopband (OSB) suppression; substrate-integrated waveguide (SIW); GUIDE; POLARIZATION; ASYMMETRY;
D O I：
10.1109/LAWP.2023.3291390
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：
A compact double periodic leaky-wave antenna is designed in this letter, which has been developed to suppress the open-stopband (OSB). This antenna is loaded with shorting vias and folded slots on a substrate-integrated waveguide (SIW) periodically. The proposed antenna can scan from backward to forward continuously with a high radiation gain at broadside. The double periodic cell made the overall size only 2.6 wavelengths. Compared with traditional SIW leaky-wave antennas (LWAs), the size is conspicuously reduced. The equivalent circuits of several different types of cell are analyzed to understand the mechanism of OSB suppression. This antenna realized the steering range from -20(degrees) to 30(degrees) Results showed that radiation gain of the antenna varies from 8.6 to 10.8 dBi in the frequency range from 13.5 to 17 GHz while 9 dBi gain achieved at broadside. The simulation results agree well with the measured results. The compact LWA operates in a large scanning range with the high directivity of continuous beam scanning.
引用
收藏
页码：2467 / 2471
页数：5
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