A study on beam-tilt type planar antenna having high aperture efficiency.

高孔径效率波束倾斜式平面天线的研究

• 批准号: 06650383
• 负责人: HANEISHI Misao
• 金额: $ 1.28万
• 依托单位: Saitama University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-06650383/
• 关键词: Planar antenna; CP-wave antenna; Microstrip antenna; Printed antenna; Beam-tilt; Radial-line; High-gain; High-efficiency

In construction of a large-scale multi-element planar array, reduction of the feeding loss is important for realization of high-efficiency performance. In reflection of this requirement, much attention is paid to a planar antenna having a loss-suppressed feeding system.This work presents a beam-tilt type planar antenna which excites singly-fed circularly polarized microstrip antenna (CP-MSA) via a low-loss radial waveguide. In order to check the performance of this antenna, some beam-tilt type planar arrays were fabricated and tested at the SHF-band.As a result of experiment, the following results were obtained. The axial ratio of the array was suppressed to below 1.0 dB over a wide range of frequency band. The aperture efficiency eta as determined from the inner diameter of the radial line reached approximately 90% at the SHF-band.On examining the input impedance characteristics, VSWR of a test array was below 1.5 over a broadband region.As mentioned previously, this planar array fed by a radial line demonstrated high-efficiency performance (approximately 90% aperture efficiency). It was conformed that this type of antenna can be useful model of a circularly polarized planar antenna.

在大规模多单元平面阵的构建中，减小馈电损耗对于实现高效率性能是重要的。本文提出了一种通过低损耗径向波导激励单馈圆极化微带天线（CP-MSA）的波束倾斜型平面天线。为了检验这种天线的性能，我们在SHF波段制作了几种倾斜波束型平面阵列天线，并进行了测试，得到了如下结果。阵列的轴比在很宽的频带范围内被抑制到1.0 dB以下。由径向线的内径确定的孔径效率η在SHF波段达到约90%。在检查输入阻抗特性时，测试阵列的VSWR在宽带区域上低于1.5。如前所述，由径向线馈电的这种平面阵列表现出高效率性能（约90%孔径效率）。证明了这种天线可以作为圆极化平面天线的一种实用模型。

项目成果

M.Haneishi: "A Consideration on Parallel Plate Mode Suppresion of Triplate-Type Planar Antenna" Proceedings of IEEE Int.Symp.on Antennas and Propagation. 1218-1221 (1994)

M.Haneishi：“关于三板型平面天线的平行板模式抑制的考虑”IEEE Int.Symp.on Antennas and Propagation 论文集。

羽石操: "ビーム成型用ラジアルラインマイクロストリップアレーアンテナのサイドロープ抑制法" 1995年電子情報通信学会秋季大会. B-62 (1995)

Misao Haishi：“用于波束整形的径向线微带阵列天线的侧绳抑制方法”1995 IEICE B-62（1995）。

羽石 操: "Consideration of a Slot-Coupled Planar Antenna for Dual Polarisation" Electronics Lett.30. 1814-1815 (1994)

Misao Haneishi：“考虑用于双极化的缝隙耦合平面天线”Electronics Lett.30 (1994)。

羽石 操: "Phased Array Antenna with a Multilayer Substrate" Proceedings of IEE, Antennas Propag.Vol. 141. 295-298 (1994)

Misao Haneishi：“具有多层基板的相控阵天线”，IEE 论文集，Antennas Propag.Vol. 141. 295-298 (1994)

羽石 操: "Radiation Properties of Ring-Shaped Microstrip Antenna Array" IEICE TRANS. ELECTRON.Vol. E78-C. 995-1001 (1995)

Misao Hanaishi：“环形微带天线阵列的辐射特性”IEICE TRANS.Vol 995-1001 (1995)