Design of Broadband Endfire Antenna with Split-ring Resonator(SRR) Structures

2019 IEEE International Conference on Computational Electromagnetics (ICCEM) Pub Date : 2019-03-20 DOI:10.1109/COMPEM.2019.8779224

Yuanhua Sun, Haiyan Jin

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引用次数: 1

Abstract

A broadband high gain endfire antenna is presented in this paper. Broad bandwidth is realized by using a planar out-of-phase power divider with ultra-wideband performance and periodic dipole elements. The device uses two substrates with a common ground plane. A coupling between two microstrip lines on the top and bottom substrate layers through a slot in the common ground plane , and a transition from two microstrip lines to a parallel stripline are used to achieve an ultra-wideband operation. The gain enhancement is achieved by loading split-ring resonator (SRR) structure in the endfire direction. The effect of the SRR-shape unit structure on the gain enhancement is investigated. Both SRR-loaded antenna and unloaded one are fabricated to verify the predications. The measurements show that SRR-loaded antenna presents gain of about 7dB-10dB in the whole working band (3.5GHz-11GHz) ,which is about 2dB-4.5dB more than the unloaded one. This antenna can be used in wireless communication systems for its advantages of the broad bandwidth and high gain.

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分环谐振器(SRR)结构宽带端火天线的设计

本文介绍了一种宽带高增益端射天线。采用具有超宽带性能的平面同相功率分配器和周期偶极子元件实现宽带带宽。该器件使用具有公共接平面的两个基板。通过在公共接平面上的插槽，在顶层和底层基板上的两条微带线之间进行耦合，并从两条微带线过渡到一条平行带状线，以实现超宽带操作。增益增强是通过在终端方向加载分环谐振器(SRR)结构来实现的。研究了srr形状单元结构对增益增强的影响。分别制作了srr加载天线和卸载天线来验证预测结果。测量结果表明，加载srr天线在整个工作频段(3.5GHz-11GHz)内的增益约为7dB-10dB，比未加载srr天线增益约为2dB-4.5dB。该天线具有带宽宽、增益高的优点，可用于无线通信系统。

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2019 IEEE International Conference on Computational Electromagnetics (ICCEM)

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