Study on Structure and Mass-Production of High-Efficiency Millimeter-Wave Slotted Waveguide Arrays

高效毫米波缝隙波导阵列结构及量产研究

• 批准号: 10355017
• 负责人: ANDO Makoto
• 金额: $ 22.66万
• 依托单位: Tokyo Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A).
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10355017/
• 关键词: single-layer waveguide arrays; alternating-phase feed; choke structure; wide choke; low sidelobe; Taylor distribution; post-wall waveguide; parallel plate slot array; 逆相給電型; 低サイドローブ化; 同相給電; ビームチルト; 反射抑圧スロットペア; 幅広チョーク構造; 一層構造導波管アレー; ミリ波ネットワー

We have discussed the followings on degradation of efficiency due to EM wave leakage coming from imperfect contact between the slotted plate and the waveguides in single-layer dominant-mode waveguide antennas.1. We have confirmed that the alternating-phase feed has less degradation than the co-phase feed at 26GHz band. We have estimated about 60% efficiency by suppressing grating lobes with beam-tilting in the backfire direction.2. Wide chokes installing the feed waveguides have not decreased the degradation due to its complexity in the structure.3. Two-beam switching has been confirmed experimentally by installing two feed wavguide s at the both ends of the radiating waveguides. Continuous beam steering is also possible by controlling the power ratio from the two input ports.4. Post-wall waveguide fed TEM antennas has obtained 60% efficiency with 27dBi at 60GHz band. Stepped coaxial-to-radial adapters has improved mass productivity in radial line slot antennas has5. We have developed planar circuits to connect antennas and RF circuits by using slot coupling.

讨论了在单层主模波导天线中，由于缝隙平板与波导之间的不完全接触而引起的电磁波泄漏对效率的影响。我们已经证实，在26 GHz频段，交流馈电比同相馈电有更小的退化。我们估计，通过在逆火方向上倾斜光束来抑制栅瓣，可以提高大约60%的效率。由于其结构的复杂性，安装馈电波导的宽扼流圈并没有减少退化。通过在辐射光波导的两端安装两个馈电波导S，从实验上证实了双光束开关。通过控制两个输入端口的功率比，也可以实现连续波束控制。后壁波导馈电的瞬变电磁天线在60 GHz频段获得了60%的效率(27dBi)。阶梯式同轴转径向适配器提高了径向线路缝隙天线的质量生产率。我们开发了平面电路，通过缝隙耦合连接天线和射频电路。

项目成果

T.Hirano, J.Hirokawa and M.Ando: "Moment method analysis of a waveguide crossed slot by using the eigenmode basis functions derived by edge-based finite element method"IEE Proceedings on Microwave, Antennas and Propagation. 147-5. 349-353 (2000)

T.Hirano、J.Hirokawa 和 M.Ando：“使用基于边缘的有限元方法导出的本征模基函数对波导交叉槽进行力矩法分析”《IEE 微波、天线和传播论文集》。

T.Hirano,J.Hirokawa and M.Ando: "Moment method analysis of a waveguide crossed slot by using the eigenmode basis functions derived by edge-based finite element method"IEE Proceedings on Microwave, Antennas and Propagation. 147・5. 349-353 (2000)

T. Hirano、J. Hirokawa 和 M. Ando：“使用基于边缘的有限元方法导出的本征模基函数对波导交叉槽进行力矩法分析”《IEE 微波、天线和传播论文集》147・5。 -353 (2000)

Ronghong Jin: "A Feeding Circuit with CPW for CA-RLSA"IEEE Trans. on Antennas and Propagation. (掲載予定). (2001)

Ronghong Jin：“CA-RLSA 的馈电电路”IEEE Trans on Antennas and Propagation（即将出版）。

J.Hirokawa and M.Ando: "Sidelobe Suppression in 76-GHz Post-Wall Waveguide-Fed Parallel Plated Slot Arrays"IEEE Transactions on Antennas and Propagation. 48・11. 1727-1732 (2000)

J. Hirokawa 和 M. Ando：“76 GHz 后壁波导馈电并行镀槽阵列中的旁瓣抑制”IEEE Transactions on Antennas and Propagation 48・11 (2000)。

Kenji Fukazawa: "Two-Way Power Divider for Partially Parallel feed Single-Layer Slotted Waveguide Arrays" IEICE Trans.Communication. Vol E81-B,No 6. 1248-1254 (1998)

Kenji Fukazawa：“用于部分并行馈电单层开槽波导阵列的双向功率分配器”IEICE Trans.Communication。