High-Impedance Surface-Based Null-Steering Antenna for Angle-of-Arrival Estimation

被引：12
作者：
Tamura, Jo [1 ]
Arai, Hiroyuki [1 ]
Itoh, Tatsuo [2 ]
机构：
[1] Yokohama Natl Univ, Dept Elect & Comp Engn, Yokohama, Kanagawa 2408501, Japan
[2] Univ Calif Los Angeles, Dept Elect & Comp Engn, Los Angeles, CA 90095 USA
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2022年 / 70卷 / 05期
关键词：
Dipole antennas; Antenna radiation patterns; Antennas; Antenna arrays; Reflector antennas; Surface waves; Estimation; Angle-of-arrival (AoA) estimation; antenna radiation patterns; dipole antenna; high-impedance surface (HIS); low profile antennas; null-steering antenna (NSA); HORIZONTAL DIPOLE; GROUND PLANE; DESIGN;
D O I：
10.1109/TAP.2021.3137469
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 null-steering antenna with a high-impedance surface (HIS) to improve angle-of-arrival (AoA) estimation is designed and experimentally demonstrated. Because the HIS helps ensure that individual element patterns in an array are identical, the proposed antenna can perform null scanning with a low fluctuation without controlling the amplitude ratio of antenna elements. The simulation results demonstrate that the proposed antenna scans a null in the H-plane in 120 degrees with greater than -30 dB from 2.4 to 2.6 GHz. Furthermore, both the measured S-parameters and element patterns agree well with the simulated results. Overall, the proposed antenna can successfully scan a null greater than -30 dB in 60 degrees at a sampling frequency of 150 MHz.
引用
收藏
页码：3269 / 3276
页数：8
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