In this paper, substrate integrated waveguide (SIW) based cavity-backed patch antenna is presented. The performance of the proposed antenna in terms of gain and cross-polarization levels is improved by inserting a pair of shorting pins in nearby non-radiating edges of the rectangular patch. The maximum gain realized for the proposed design is 8.6 dBi at the resonant frequency of 10 GHz with 95 % efficiency, which is much higher than that of the conventional patch antenna. The proposed design exhibits an impedance bandwidth of 870 MHz, ranging from 9.59 GHz to 10.46 GHz. Moreover, the proposed design owns unidirectional and stable radiation characteristics in the boresight direction. The simulated results are validated with fabrication and measurement which show a close agreement with each other.


中文翻译：

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用于X波段应用的SIW腔背衬式贴片天线

在本文中，提出了基于衬底集成波导（SIW）的背腔贴片天线。通过在矩形贴片的附近非辐射边缘插入一对短路针，可以改善建议天线在增益和交叉极化水平方面的性能。对于所提出的设计，在10 GHz谐振频率下具有95％效率的最大增益为8.6 dBi，这比常规贴片天线要高得多。拟议的设计展现了870 MHz的阻抗带宽，范围从9.59 GHz到10.46 GHz。此外，所提出的设计在视轴方向上具有单向且稳定的辐射特性。仿真结果通过制造和测量进行了验证，两者之间显示出非常好的一致性。