This short communication presents a substrate integrated waveguide planar cavity slotted antenna array. The proposed antenna array, excited in its TE₃₃ higher mode, incorporates a grounded coplanar‐waveguide (CPW) CPW‐feeding excitation mechanism. The electromagnetic energy is coupled to the air through 3 × 3 slot array etched on top metallic layer. The proposed antenna operates in the X‐band for the frequency range around the 10 to 11 GHz with resonances at 10.4 and 10.8 GHz frequencies. The proposed antenna array was fabricated and tested. Experimental results show good impedance matching with enhanced radiation characteristics, in terms of peak gain, cross‐polarization level, and low back‐radiation. The proposed antenna has the advantages of low‐footprints, lightweight, high gain, low‐cost, and ease of integration with other electronic circuits. With these characteristics, the proposed antenna array can find its applications in compact wireless digital transceivers.

中文翻译：

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使用TE33模式的共面波导馈电平面集成腔后置缝隙天线阵列

这种简短的交流提出了一个基板集成波导平面腔缝隙天线阵列。拟议的天线阵列，在其TE _33中被激发更高的模式，结合了接地共面波导（CPW）CPW馈电激励机制。电磁能通过蚀刻在顶部金属层上的3×3缝隙阵列耦合到空气。拟议中的天线在X波段工作，频率范围为10至11 GHz，谐振频率为10.4和10.8 GHz。拟议的天线阵列已制作并测试。实验结果表明，在峰值增益，交叉极化水平和低反向辐射方面，阻抗匹配良好，辐射特性增强。所建议的天线具有占地面积小，重量轻，增益高，成本低以及易于与其他电子电路集成的优点。具有这些特性，所提出的天线阵列可以在紧凑型无线数字收发器中找到其应用。