A Novel Low-Loss Millimeter-Wave 3-dB 90° Ridge-Gap Coupler Using Large Aperture Progressive Phase Compensation
A Novel Low-Loss Millimeter-Wave 3-dB 90° Ridge-Gap Coupler Using Large Aperture Progressive Phase Compensation
复制标题
DOI：
10.1109/access.2017.2704523
复制
发表时间：
2017-01-01
期刊：
影响因子：
3.9
通讯作者：
Sebak, Abdel R.
中科院分区：
文献类型：
--
作者：
Farahani, Mohammadmahdi;Akbari, Mohammad;Sebak, Abdel R.
研究开发了一种采用脊隙波导（RGW）技术的新型毫米波（mm-wave）900相位补偿混合耦合器。该耦合器在毫米波频段具有低损耗，而使用微带线或基板集成波导等传统传输线会产生相对较高的插入损耗。所提出的耦合器是使用大耦合孔径设计的，其在孔径上的相位变化可以补偿耦合器的渐进相位并实现低输出相位误差。脊隙 3-db 900 混合耦合器适用于设计毫米波波束形成网络，例如 Butler 矩阵波束形成器，其中交叉传输线给设计此类网络带来了困难。本文提取了 RGW 的色散图，并制定了用于设计耦合器的多耦合孔径技术。耦合器已制造并测量。模拟和测量结果显示出良好的一致性。
A novel millimeter-wave (mm-wave) 900 phase-compensated hybrid coupler using the ridgegap waveguide (RGW) technology is studied and developed. The coupler is low-loss at mm-wave frequency bands, whereas using conventional transmission lines, such as microstrip or substrate integrated waveguides, yields relatively a high amount of insertion loss. The proposed coupler is designed using large coupling apertures, which with their phase variation over the apertures can compensate for the progressive phase of the coupler and achieve a low output-phase error. The ridge-gap 3-db 900 hybrid coupler is suitable for designing mm-wave beamforming networks, such as the Butler matrix beamformer, where the cross-over transmission lines present a difficulty in designing such networks. In this paper, the dispersion diagram of the RGW is extracted, and a multicoupling aperture technique is formulated for designing the coupler. The coupler is fabricated and measured. The simulated and measured results show a good agreement.