旋转反射面天线测DOA方法中角轮廓角依赖性的改进

IF 0.3 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC
Toshiki Hozen;Kazuma Tomimoto;Tomonori Ikeda;Ryo Yamaguchi
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引用次数: 0

摘要

在下一代移动通信中,预计将主动使用毫米波和太赫兹波频率,从而确保较宽的频率带宽。作者报道了一种利用旋转反射天线在这些频率上旋转大口径天线,实现高速到达方向(DOA)测量的方法。作者先前的方法采用圆极化天线作为主辐射体,以适应天线的极化旋转。然而,该方法存在角轮廓的角依赖性问题。针对这一问题,本文提出了一种利用正交极化天线作为旋转反射面天线的主辐射体进行旋转测量,并对采集到的数据进行离线处理的测量方法。为了验证该方法的有效性,在暗室中进行了验证实验,结果表明,与圆极化天线作为主辐射器相比,该方法可以获得角依赖较小的角轮廓。结果表明,该方法具有快速测量DOA的能力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Improvement of Angular Dependence of Angular Profile in DOA Measurement Method using Rotating Reflector Antenna
In next-generation mobile communications, the proactive use of millimeter-wave and terahertz-wave frequencies, which can secure a wide frequency bandwidth, is anticipated. The authors reported a measurement method using a rotating reflector antenna to realize high-speed direction-of-arrival (DOA) measurement by rotating a large-aperture antenna at these frequencies. The authors previous method adopted a circularly polarized antenna as the primary radiator to accommodate the polarization rotation of the antenna. However, this method had the issue of angular dependence in the angular profile. To solve this problem, this paper proposes a measurement method that uses an orthogonally polarized antenna as the primary radiator of a rotating reflector antenna for rotational measurements, and processes the acquired data offline. To confirm the effectiveness of the proposed method, a demonstration experiment is conducted in an anechoic chamber, and it is shown that an angular profile with less angular dependence can be obtained than using a circularly polarized antenna as the primary radiator. We also show that the proposed method is capable of fast DOA measurement.
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来源期刊
IEICE Communications Express
IEICE Communications Express ENGINEERING, ELECTRICAL & ELECTRONIC-
自引率
33.30%
发文量
114
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