当前位置: X-MOL 学术IEEE Antennas Wirel. Propag. Lett. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Broadband Fixed-Beam Leaky-Wave Antenna With Consistent and High Gain Based on Ridge Gap Waveguide
IEEE Antennas and Wireless Propagation Letters ( IF 3.7 ) Pub Date : 6-23-2022 , DOI: 10.1109/lawp.2022.3185774
Hang Du 1 , Zheng Li 1 , Junhong Wang 1
Affiliation  

In most communication scenarios, antennas are often required to achieve broadband and directional radiation, and beam squint with frequency is unfavorable for broadband signal transmission. The traditional leaky-wave antennas (LWAs) have beam squint with frequency. In this letter, an LWA with fixed beam direction in a broadband is designed with consistent gain over the band. A ridge gap waveguide (RGW) is adopted to construct a nondispersive structure, and one lateral side is connected to a parallel plate filled with dielectric slab. Thus, leakage radiation is produced at the interface between the RGW and the parallel plate, generating a beam with fixed direction and high gain. The novelty is that in theory the fixed beam can be realized in infinite band owing to the nondispersive waveguide. Finally, a broad band of up to 58% (from 22 to 40 GHz) is achieved due to the limitations of the stopband structure and feeding port. The measured beam is fixed at 41° over the whole band, with a slight beam deviation of 2.6°. The realized gain is consistent over the band with a peak gain of 19.3 dBi. The designing method provides a simple and efficient way to realize the broadband fixed-beam LWAs.

中文翻译:


基于脊隙波导的宽带固定波束一致高增益漏波天线



在大多数通信场景中,往往需要天线实现宽带、定向辐射,而随频率的波束斜视不利于宽带信号传输。传统的漏波天线(LWA)具有随频率变化的波束斜视。在这封信中,设计了一种在宽带中具有固定波束方向的 LWA,其在整个频段上具有一致的增益。采用脊隙波导(RGW)构建非色散结构,其一侧连接到填充有介质板的平行板。这样,RGW和平行板之间的界面处就会产生泄漏辐射,产生方向固定、增益较高的光束。新颖之处在于,由于非色散波导,理论上可以在无限频带内实现固定光束。最终,由于阻带结构和馈电端口的限制,实现了高达 58% 的宽带(从 22 到 40 GHz)。测得的光束在整个频段内固定在41°,光束偏差轻微为2.6°。实现的增益在整个频段内保持一致,峰值增益为 19.3 dBi。该设计方法为实现宽带固定波束LWA提供了一种简单有效的方法。
更新日期:2024-08-28
down
wechat
bug