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Ridge gap waveguide antenna array with improved mutual isolation for millimeter wave applications

机译:Ridge Gap波导天线阵列,具有改进的毫米波应用的相互隔离

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摘要

Fifth-generation millimeter-wave devices with multiple antennas require minimal mutual interference for better overall performance. This article presents a simple but novel technique to improve the isolation between closely packed slot antenna arrays. A printed ridge gap waveguide (PRGW) structure is used to realize a low loss millimeter-wave array's feeding mechanism. By optimally introducing a defective upper plate within the PRGW structure, the measured port isolation of the antenna elements is improved by 17 dB at 61.3 GHz. The antenna array is impedance matched to the feeding PRGW structure over a wide frequency range of 54-67 GHz. Moreover, the radiation patterns are consistent showing broadside radiation before and after introducing the defect in the PRGW structure. The fabricated prototype of the PRGW fed slot antenna array validated the predicted isolation and return-loss bandwidths of the proposed radiating system.
机译:具有多个天线的第五代毫米波设备需要最小的相互干扰,以便更好地进行整体性能。 本文提出了一种简单但新的技术,可以改善紧密包装的槽天线阵列之间的隔离。 印刷的脊间隙波导(PRGW)结构用于实现低损耗毫米波阵列的进料机构。 通过最佳地在PRGW结构内引入有缺陷的上板,在61.3GHz下,天线元件的测量端口隔离得到了17dB。 天线阵列是与频率范围为54-67GHz的频率范围内的馈电PRGW结构的阻抗。 此外,辐射图案在引入PRGW结构中的缺陷之前和之后的宽边放射线是一致的。 PRGW FED槽天线阵列的制造原型验证了所提出的辐射系统的预测隔离和回波损耗带宽。

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