期刊
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
卷 71, 期 1, 页码 487-496出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAP.2022.3217175
关键词
Lenses; Antenna arrays; Antennas; Surface impedance; Impedance; Refractive index; Antenna feeds; Geodesic lens; lens antenna; linear array; Lune-burg lens; multibeam antennas
In this work, a linear array of modulated geodesic Luneburg lens antennas operating at 56-62 GHz is proposed. The lens array antenna features 2-D beam scanning with low structural complexity. The experimental results show a good agreement with the simulated results.
Antennas for future communication systems are required to be highly directive and steerable to compensate for the high path loss in the millimeter-wave band. In this work, we propose a linear array of modulated geodesic Luneburg lens (the so-called water drop lens) antennas operating at 56-62 GHz. The lens array antenna features 2-D beam scanning with low structural complexity. The lenses are fully metallic and implemented in parallel plate waveguides (PPWs), meaning that they are highly efficient. Each lens is fed with 13 rectangular waveguides surrounded by glide-symmetric holes to suppress leakage. The lenses provide 110(?) beam coverage in the H-plane with scan losses below 1 dB. In order to scan in the E-plane, we use a feeding network based on a 1:4 power divider and three phase shifters. In this configuration, the array can scan 60(?) in the E-plane, albeit with higher scanning losses than in the H-plane. The lens array is manufactured and a good agreement between simulated and experimental results is obtained.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据