Wideband High-Efficiency Slot Array Antenna Based on Gap Waveguide Single-Layer Feeding Network

IF 4.8 2区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE Antennas and Wireless Propagation Letters Pub Date : 2024-11-25 DOI:10.1109/LAWP.2024.3506712

Rahman Askarzadeh;Ali Farahbakhsh;Davood Zarifi;Ashraf Uz Zaman

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Abstract

A single-layer, full metal, wideband, and high-efficiency slot array antenna operating in V band [(50 to 75) GHz] is proposed using a single corporate-feeding network based on gap waveguide (GW) technology. Compared with conventional multilayered slot array antenna, the proposed antenna utilizes only one waveguide feeding layer to excite the radiation slots; therefore, the assembly complexity of multilayer waveguide and manufacturing cost is greatly decreased. The proposed 16 × 16 slot array antenna consists of four 64-element smaller array antennas in which all radiation slots are fed by an E-plane groove gap waveguide (EGGW). Power division in each of the 8 × 8 element array antenna is realized by a wideband combined ridge and EGGW power divider. Two wideband E-plane groove gap waveguide T-junctions have been used to connect all four 64-element subarray antennas with proper phase and equal amplitude together to obtain higher gain. The final 16 × 16 slot array antenna has a peak gain of 32 dBi gain and about 36% impedance bandwidth at V band. Also, the full metal antenna array has an average efficiency of 80% over the entire bandwidth of 50 GHz to 72 GHz.

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基于隙波导单层馈电网络的宽带高效槽阵天线

提出了一种基于间隙波导（GW）技术的单企业馈电网络，工作在V波段[(50 ~ 75)GHz]的单层全金属宽带高效槽阵天线。与传统的多层缝隙阵列天线相比，该天线仅利用一个波导馈电层来激发辐射缝隙；从而大大降低了多层波导的组装复杂度和制造成本。所提出的16 × 16槽阵天线由4个64元较小的阵列天线组成，其中所有的辐射槽均由e平面槽隙波导（EGGW）馈电。每个8 × 8单元阵列天线的功率划分是通过宽带组合脊线和EGGW功率分压器实现的。采用两个宽带e平面槽隙波导t结将四个相位合适、幅值相等的64元子阵列天线连接在一起，以获得更高的增益。最终得到的16 × 16槽阵天线峰值增益为32 dBi， V波段阻抗带宽约为36%。此外，全金属天线阵列在50 GHz至72 GHz的整个带宽上的平均效率为80%。

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来源期刊

IEEE Antennas and Wireless Propagation Letters 工程技术-电信学

CiteScore

8.00

自引率

9.50%

发文量

529

审稿时长

1.0 months

期刊介绍： IEEE Antennas and Wireless Propagation Letters (AWP Letters) is devoted to the rapid electronic publication of short manuscripts in the technical areas of Antennas and Wireless Propagation. These are areas of competence for the IEEE Antennas and Propagation Society (AP-S). AWPL aims to be one of the "fastest" journals among IEEE publications. This means that for papers that are eventually accepted, it is intended that an author may expect his or her paper to appear in IEEE Xplore, on average, around two months after submission.