宽带缝隙耦合贴片天线

2020 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2020-09-20 DOI:10.1109/IWS49314.2020.9360115

Yanfang Wang, F. Zhu, S. Gao

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引用次数: 0

摘要

本文介绍了一种新型宽带缝隙耦合贴片天线的设计与研究。天线结构由三层组成，顶部为方形辐射贴片，中部为带3个预埋槽的接地贴片，底部为l型馈电。通过合理设计l型馈电和槽位，可以获得较宽的带宽。此外，l型馈电端接圆形补片，进一步扩大带宽。与传统的孔耦合贴片天线相比，该天线可以避免其他电子设备的影响，同时保持相对较宽的带宽。仿真结果表明，该天线的宽带阻抗带宽(VSWR $\leq 2)$)约为26% (3.45-4.5 GHz) and the total thickness of the structure is 8.8 mm (around 0.1\lambda_{b}$ at the lowest operating frequency). The simulated realized gain varies from 2.5 to 4.7dBi across the operating frequency range.

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A Wideband Slot Coupled Patch Antenna

The design and investigation of a novel slot coupled patch antenna with a wide bandwidth have been presented in this paper. The antenna structure consists of three layers with the square radiating patch on the top, the grounded patch with three embedded slots in the middle and the L-shaped feed at the bottom. The wideband bandwidth can be achieved by properly designing the L-shaped feed and the slots. Moreover, the L-shaped feed is terminated with a circular patch to further enlarge the bandwidth. Compared with traditional aperture-coupled patch antennas, the proposed antenna can avoid the effects from other electronic devices while maintaining a relatively broad bandwidth. The simulated results have shown that the presented antenna has obtained a broadband impedance bandwidth (VSWR $\leq 2)$ of about 26% (3.45-4.5 GHz) and the total thickness of the structure is 8.8 mm (around 0.1\lambda_{b}$ at the lowest operating frequency). The simulated realized gain varies from 2.5 to 4.7dBi across the operating frequency range.

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2020 IEEE MTT-S International Wireless Symposium (IWS)

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