Construction of a Small Compact Range for Satellite-Communication-Use Samll Planar Antenna Development

卫星通信用小平面天线开发的小型紧凑范围的构建

• 批准号: 08555093
• 负责人: MIYATA Katsumasa
• 金额: $ 3.46万
• 依托单位: AKITA NATIONAL COLLEGE OF TECHNOLOGY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08555093/
• 关键词: Compact Range; Waveguide Slot Array; Planar Antenna; 導波管スロットアレー

A small three-cubic-meter anechoic chamber and a plane-wave-generating source antenna for measuring 12-GHz-band small antenna radiation patterns have been constructed. First, in order to build in an anechoic chamber, a number of absorber elements made of foamed-polystyrene plates with circular conic holes filled with carbon powder are developed and tested. Then, by installing these absorbers on the wall, the chamber is constructed. The reflection coefficient of the chamber wall for normal incidence is smaller than -40 dB at f=12 GHz. As for the source antenna, a planar waveguide array antenna (PWAA) originally fabricated in our laboratory is modified and its performance is improved. First, in order to reduce interactions between the PWAA and test antennas, 2mm-thick absorbers (-20dB reflectivity at f=12 GHz) are loaded on to the surface of the PWAA.Next, for the purpose of controlling the aperture distribution, 2800 circular-waveguide constrained lenses in the form of a constrained-lens panel are loaded about 40 cm above the PWAA surface. Finally, to reduce the amount of cross-polarized components that are generated at the output of the constrained lenses as a result of the phase/amplitude adjustments and to remove edge effects from the PWAA, a foamed-polystyrene panel consisting of horizontally layered resistive films and absorbers at the panel edges are loaded on to the aperture of the constrained-lens surface. Presently, for the purpose of extending the frequency range of application, the whole antenna system is planned to be installed on a rotating structure. In addition, the feeding network is now replaced by a corporate feed system so that the frequency property is improved.

本文介绍了一个三立方米的小型电波暗室和一个平面波源天线，用于测量12 GHz频段小型天线的辐射方向图。首先，为了建立在一个消声室中，一些吸收剂元件制成的泡沫聚苯乙烯板与圆锥孔填充碳粉的开发和测试。然后，通过将这些吸收器安装在壁上，腔室被构造。在f=12 GHz时，垂直入射时腔壁的反射系数小于-40 dB。在源天线方面，对实验室自制的平面波导阵列天线（PWAA）进行了改进，提高了其性能。首先，为了减少PWAA和测试天线之间的相互作用，在PWAA的表面上加载2 mm厚的吸收体（在f=12 GHz下反射率为~ 20 dB）。接下来，为了控制孔径分布，在PWAA表面上方约40 cm处加载2800个约束透镜板形式的圆波导约束透镜。最后，为了减少由于相位/幅度调整而在约束透镜的输出处产生的交叉偏振分量的量，并且为了从PWAA去除边缘效应，将由水平分层的电阻膜和在面板边缘处的吸收体组成的泡沫聚苯乙烯面板加载到约束透镜表面的孔径上。目前，为了扩展应用的频率范围，整个天线系统计划安装在旋转结构上。此外，馈电网络现在被共同馈电系统所取代，从而改善了频率特性。

项目成果

宮田克正,山崎博之,貝塚拙郎: "誘導体装荷導波管スロットアレーアンテナの近傍放射特性" 平成10年度電気関係学会東北支部連合大会講演論文集. 214 (1998)

Katsumasa Miyata、Hiroyuki Yamazaki 和 Takao Kaizuka：“介质负载波导缝隙阵列天线的近场辐射特性”1998 年日本电气工程师东北分会会议记录 214 (1998)。

Katsumasa Miyata: "Construction of a Compact Range Environment for 12-GHz-Band Small Antenna Pattern Measurements" Technical Report of IEICE (Japan) A.P98-12. 31-38 (1998)

Katsumasa Miyata：“构建用于 12 GHz 频段小天线方向图测量的紧凑范围环境”IEICE（日本）A.P98-12 的技术报告。

宮田克正: "コンパクトレンジ用導波管スロットアレーアンテナの試作" 1997年電子情報通信学会通信ソサィエティ大会. 1. 135 (1997)

Katsumasa Miyata：“紧凑范围波导缝隙阵列天线的原型”1997 IEICE 通信协会会议。1. 135 (1997)。

Katsumasa Miyata Hiroyuki Yamazaki: "Radiation Pattern Measurement of Small Antennas in a Constructed Prototype Compact Range" IEEE/AP-S Int.Symp.Digest. (1997)

Katsumasa Miyata Hiroyuki Yamazaki：“在构造原型紧凑范围内小型天线的辐射方向图测量”IEEE/AP-S Int.Symp.Digest。

Katsumasa Miyata: "Radiation Pattern Measurement of Small Antennas in a Constructed Prototype Compact Range" IEEE/AP-S Int.Symp.Digest. Vol.1. 140-143 (1997)

Katsumasa Miyata：“在构造的原型紧凑范围内测量小型天线的辐射方向图”IEEE/AP-S Int.Symp.Digest。