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arXiv 2003.08695eess.SP
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毫米波间隙波导低损耗可重构移相器

Low-Loss Reconfigurable Phase Shifter in Gap-Waveguide Technology for mm-Wave Applications

Á. Palomares-Caballero, A. Alex-Amor, P. Escobedo, J. Valenzuela-Valdés, P. Padilla

摘要:

在这个简短的,我们提出了一个低损耗的机械可重构移相器实现间隙波导技术的毫米波频率。所提出的设计给出了波导内的调谐元件的实际实现,提供了在高频下使用E平面分裂波导的替代方案,以避免泄漏损耗。所描绘的移相器设计基于H平面分裂波导。相移由调谐螺钉控制,调谐螺钉对插入波导内的柔性金属条施加压力。柔性带以不同的曲率半径弯曲并确定输出端口处的相移。通过间隙波导设计实现了柔性金属带的成本有效的制造和简单的实施。为了验证目的,已经制造了一个原型。在64 GHz到75 GHz范围内实现了良好的阻抗匹配,提供了15.8%的阻抗带宽。结果表明,最大相移为250 $^{o}$,最大和平均插入损耗(IL)分别为3 dB和1.7 dB。

英文摘要:

In this brief, we present a low-loss mechanically reconfigurable phase shifter implemented in gap-waveguide technology for mm-wave frequencies. The proposed design gives a practical implementation of tuning elements inside the waveguide providing alternatives to the use of the E-plane split waveguide at high frequencies in order to avoid leakage losses. The depicted phase shifter design is based on a H-plane split waveguide. The phase shift is controlled by means of a tuning screw, which exerts pressure on a flexible metallic strip inserted inside the waveguide. The flexible strip bends with different curvature radii and determines the phase shift at the output port. Cost-effective manufacturing and simple implementation of the flexible metallic strip are achieved by means of the gap-waveguide design. A prototype has been manufactured for validation purposes. Good impedance matching is achieved from 64 GHz to 75 GHz providing a 15.8% impedance bandwidth. The results show a maximum phase shift of 250$^{o}$ with a maximum and mean insertion loss (IL) of 3 dB and 1.7 dB, respectively.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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