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首页> 外文会议>European Microwave Conference >A New Waveguide Slot Array Antenna with High Isolation and High Antenna Bandwidth Operation on Ku- and K- Bands for Radar and MIMO Systems
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A New Waveguide Slot Array Antenna with High Isolation and High Antenna Bandwidth Operation on Ku- and K- Bands for Radar and MIMO Systems

机译：在雷达和MIMO系统的Ku和K波段上具有高隔离度和高天线带宽的新型波导缝隙阵列天线

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摘要

In this paper a novel technique is proposed to reduce the mutual coupling between the radiating elements of a waveguide slot array antenna. This is achieved by inserting slots between the waveguide oval shaped slots. The reference waveguide array antenna used in the study was implemented with an arrangement of 3×5 oval shaped slots. By incorporating linear slots between the radiating oval shaped slots in both horizontal and vertical directions significant reduction in mutual coupling is achieved of 24 dB, 20 dB, and 32 dB in the frequency bands of 12.95-13.75 GHz (Ku-band), 15.45-16.85 GHz (Ku-band), and 18.85-23.0 GHz (K-band), respectively. Edge-to-edge distance between the slot radiators is 0.2λ, which is at least twofold smaller than conventional array antennas. With the slot isolators the antenna's minimum and maximum gains improve by 53.5% and 25.5%, respectively. In addition, the radiation patterns are unaffected. The proposed method is simple to implement, low cost solution mass production.
机译：在本文中，提出了一种新颖的技术来减少波导缝隙阵列天线的辐射元件之间的相互耦合。这是通过在椭圆形波导槽之间插入槽来实现的。本研究中使用的参考波导阵列天线是通过3×5椭圆形缝隙的排列来实现的。通过在水平和垂直方向上的辐射椭圆形缝隙之间合并线性缝隙，可以在12.95-13.75 GHz（Ku频段），15.45- 16.85 GHz（Ku频段）和18.85-23.0 GHz（K频段）。缝隙辐射器之间的边到边距离为0.2λ，比传统阵列天线小至少两倍。使用缝隙隔离器，天线的最小和最大增益分别提高了53.5％和25.5％。另外，辐射方向图不受影响。所提出的方法易于实现，低成本解决方案的大量生产。

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