Realization of an Antenna system for the Next Generation of Mobile Satellite Communications Station

下一代移动卫星通信站天线系统的实现

• 批准号: 16360185
• 负责人: ITO Koichi
• 金额: $ 6.02万
• 依托单位: Chiba University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2004
• 资助国家: 日本
• 起止时间: 2004 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-16360185/
• 关键词: mobile satellite communications; ETS-VIII; beam-switching; triangular patch antenna; dual-band; isolation; pseudo-satellite; communication experiment vehicle; 三角形パッチアレーアンテナ

In this research, the development of an antenna system that can be used in Japan has been aimed in order to develop a basic technology for mobile satellite communications using a geostationary satellite. The contents of the research can be divided into the following three points :1. Development of circularly polarized dual-band triangular-patch array antenna for both reception and transmission ;2. Development of switching circuit and control system for satellite-tracking ;3. Outdoor experiments of satellite communications using an experimental vehicle and a pseudo-satellite station.To be more precise, in order to reduce the antenna dimensions in circular array configuration, a circularly polarized triangular patch antenna has been developed. Herewith, the antenna can be miniaturized and the gain at low elevation direction can be improved. The developed antenna element can easily be made in circular array configuration and along with its miniaturization, a configuration that allows a st … More able circularly polarized radiation by means of a dual feeding can be obtained.When put into an array configuration, as both reception and transmission elements are combined in a single layer, a dual-band operation and good isolation characteristics are realized. In order to improve the radiation characteristics, the relative permittivity of the substrate, the element shape, and the distance between the elements are optimized.A miniaturized control circuit based on ON-OFF method for satellite tracking and that does not make use of any phase shifter is developed aimed at an integration with the antenna. As the whole circuit can be implemented with chips components, a substantially integrated unit as well as low cost becomes possible.Moreover, an automatic tracking system making use of a fiber optic gyro and personal computer is developed and a function enabling the control of the radiated beam depending on the direction of the vehicle is loaded. The antenna system is examined in the anechoic chamber to confirm the effectiveness of its performances.In addition, to confirm the performances of the developed antenna under a real environmental conditions, a pseudo-satellite station is set on the roof of a building inside Chiba University, the characteristics of the antenna (1) when actually embarked in the experiment vehicle are investigated. The values of a budget link, for which the transmitted power and the operating frequency of the pseudo-satellite station are similar to the ones used for ETS-VIII, has been used.In this research, it is confirmed by both numerical simulations and measurements that the antenna developed in this research is miniaturized, dual-band frequency operating, electrically tracking equipped from the antenna and overall system performances analysis.Finally, these results are summarized and reported in the Technical Report of IEICE, the IEEE AP-S, and the Proceeding of the Institute of Image Information and Television Engineers. In addition, the results are also published in the IEICE Transactions on Communications (Japanese version) and the IEEE Transactions on Antennas & Propagation. Less

在这项研究中，为了使用地理卫星的移动卫星通信开发基本技术，可以使用在日本使用的天线系统的开发。研究的内容可以分为以下三个：1。开发用于接收和传播的圆极化双波段三角斑阵列天线； 2。开发电路和控制系统用于卫星跟踪； 3。使用实验车辆和伪卫星站进行卫星通信的室外实验。要更加精确，为了减少圆形阵列构型中的天线尺寸，已经开发了圆形极化的三角贴片天线。因此，可以将天线微型化，并且可以改善高升高方向的增益。开发的天线元件可以轻松地以圆形阵列构型和微型化形式制成，该构型可以通过双喂养获得ST…更一般的极化辐射。当将接收元件和传输元素组合成单层时，将其放入阵列配置时，实现了双波段操作和良好的隔离特性。为了提高辐射特性，优化了底物的相对介电特征，元素形状和元素之间的距离得到了优化。基于卫星跟踪的开关方法的微型控制电路，并且不利用任何相位变速器的开发旨在与天线集成。由于可以使用芯片组件实现整个电路，因此可以开发出一种自动跟踪系统，从而开发了光纤陀螺仪和个人计算机，并且可以根据车辆的方向来实现辐射光束的控制功能。在田径室中检查了天线系统，以确认其性能的有效性。此外，为了确认在真实环境条件下开发的天线的性能，伪造的卫星站设置在千叶大学内的建筑物的屋顶上，当对天线的特征（1）进行了研究，当研究了实验工具中时实际置入了天线（1）。已经使用了预算链接的值，该预算链接的值与伪 - 卫星站的传输能力和工作频率相似，与ETS-VIII使用的链接相似。在这项研究中，数值模拟和测量都可以通过本研究中的数值模拟和测量来证实，这项研究是微型频率进行的，dual-Band control the ant equality the ant equality the ant the ant the the antenna antenna antenna antenna antenna。在IEICE，IEEE AP-S的技术报告以及图像信息与电视工程师研究所的诉讼程序中进行了总结和报告。此外，结果还发表在有关通信（日语版本）和天线和传播的IEEE交易的IEICE交易中。较少的

项目成果

Simple satellite tracking patch array antenna for ETS- VIII applications and outdoor experiments using a pseudo satellite

用于 ETS-VIII 应用和使用伪卫星的户外实验的简单卫星跟踪贴片阵列天线

• 发表时间: 2004
• 期刊: 2004 International Symposium on Antennas and Propagation vol.1
• 作者: Toshimitsu TANAKA;Koichi ITO;Amane MIURA;Shin-ichi YAMAMOTO et al.
• 通讯作者: Shin-ichi YAMAMOTO et al.

Basic characteristics of a circularly polarized circular sector patch antenna

圆极化圆扇形贴片天线的基本特性

• 发表时间: 2005
• 期刊: Proceeding of 2005 IEICE Society Conference, Sapporo, Japan
• 作者: Toshimitsu TANAKA;Masaharu TAKAHASHI;Koichi ITO
• 通讯作者: Koichi ITO

電子スイッチによる簡易衛星追尾型三角形パッチアレーアンテナのビーム切換特性

电子开关简易卫星跟踪型三角贴片阵列天线波束切换特性

• 发表时间: 2005
• 期刊: 電子情報通信学会技術研究報告 A・P2005-79
• 作者: 金子 謙一;田中 憲光;高橋 応明;伊藤 公一
• 通讯作者: 伊藤 公一

Mobile Satellite Communication Experiments on Dual-Band Triangular-Patch Array Antenna

双频三角贴片阵列天线移动卫星通信实验

• 发表时间: 2005
• 期刊: 2005 IEEE AP-S International Symposium and USNC/URSI National Radio Science Meeting (発表予定)
• 作者: Toshimitsu TANAKA;Koichi ITO;Masaharu TAKAHASHI;Amane MIURA;Shin-ichi YAMAMOTO et al.
• 通讯作者: Shin-ichi YAMAMOTO et al.

Low profile satellite-tracking dual-band triangular-patch array antenna for mobile satellite communications

• 发表时间: 2004-10
• 作者: J. Sumantyo;Ito Koichi