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Design of multilayer SIW cavity-backed slot antenna array

机译:多层SIW腔背缝隙天线阵列设计

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In this paper, a multilayer substrate integrated waveguide (SIW) cavity-backed slot antenna array with wideband performance is proposed. In order to broaden the operating bandwidth of SIW slot antenna, multilayer cavities with gradually decreased permittivity and expanded aperture sizes are loaded above the slot, which realizes a smooth transition between SIW slot and free space. A wideband feeding network employing slot coupling is designed to excite the array elements. Results indicate the proposed array operates with 28.4% bandwidth ranging from 22.4 to 29.8 GHz. Besides, stable broadside radiation patterns are obtained across the operating band.
机译:本文提出了一种具有宽带性能的多层基片集成波导腔背隙缝隙天线阵列。为了拓宽SIW缝隙天线的工作带宽,在缝隙上方加载了介电常数逐渐减小且孔径尺寸增大的多层空腔,实现了SIW缝隙与自由空间之间的平滑过渡。设计采用缝隙耦合的宽带馈电网络来激发阵列元件。结果表明,所提出的阵列以28.4%的带宽工作,范围为22.4至29.8 GHz。此外,在整个工作频带上可获得稳定的宽边辐射方向图。

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