In this work, a compact antenna employing the substrate integrated waveguide (SIW) technology is investigated to achieve the characteristics of wideband and high gain. A pair of novel elliptical patches, which operate as an electric dipole, are loaded on the upper surface of the antenna. Two bow-tie-shaped slots are etched in parallel on the upper surface of SIW to obtain the features of magneto dipole and wideband. Combined with the low profile character of the SIW, the low cost of printed circuit board technology and the broadband characteristic of magneto-electric (ME) dipole, a 1 × 8 SIW ME-dipole antenna array is proposed and fabricated. The experimental result of the proposed prototype shows that the 10 dB impedance bandwidth is 42.3% from 19.4 to 29.8 GHz, which is basically consistent with the simulated result. Moreover, the antenna gain up to 14.6 dBi and the radiation efficiency higher than 82.6% are also obtained during the experiment. In the whole resonance band, excellent directional radiation, cross-polarisation level <−25 dB and gain fluctuation <2.7 dB all suggest that the array can be applied to a fifth-generation wireless network.

中文翻译：

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采用两个蝶形缝隙的高增益宽带基片集成波导天线设计

在这项工作中，研究了一种采用衬底集成波导（SIW）技术的紧凑型天线，以实现宽带和高增益的特性。一对用作电偶极子的新型椭圆形贴片安装在天线的上表面。在SIW的上表面上平行蚀刻两个蝶形的缝隙，以获得磁偶极子和宽带的特征。结合SIW的薄型特点，印刷电路板技术的低成本以及磁电偶极子的宽带特性，提出并制造了1×8 SIW ME偶极子天线阵列。所提出的原型的实验结果表明，从19.4至29.8 GHz，10 dB的阻抗带宽为42.3％，与仿真结果基本一致。此外，在实验过程中，天线增益高达14.6 dBi，辐射效率也高于82.6％。在整个谐振频带中，出色的定向辐射，交叉极化电平<−25 dB和增益波动<2.7 dB都表明该阵列可以应用于第五代无线网络。