Gain enhancement of compact CPW-Fed ultra-wideband antenna using an FSS reflector

IF 1 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC Microwave and Optical Technology Letters Pub Date : 2024-10-17 DOI:10.1002/mop.34344

Boualem Hammache, Idris Messaoudene, Massinissa Belazzoug, Salem Titouni, Abderraouf Messai, Tayeb A. Denidni

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Abstract

In this paper, an enhancement gain of compact CPW-Fed antenna using a single layer frequency selective surfaces (FSSs) reflector for ultra-wideband (UWB) applications is presented. A hexagonal CPW-Fed antenna with a size of 30 × 30 mm² is realized to provide a UWB bandwidth operation. In this study, a novel design of an FSS unit cell with reduction and a small size of 8 × 8 mm² is proposed. It allows one to achieve a UWB band-stop response between 3 and 11.5 GHz. The FSS reflector has 7 × 7 units with a total size of 56 × 56 mm². This reflector is placed below the antenna at a distance of 20 mm. The main objective of this contribution is to improve the gain level of the antenna, where the proposed antenna achieves an improvement of realized gain of 6.2 dBi with increasing from 2.2 to 8.4 dBi. The antenna became more directive after the integration of the FSS reflector with a directional radiation pattern. The numerical and experimental results are in good concordance with the simulated one. This study is performed in terms of voltage standing wave ratio, radiation pattern, realized gain, and radiation efficiency.

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利用 FSS 反射器增强紧凑型 CPW-Fed 超宽带天线的增益

本文介绍了使用单层频率选择表面（FSS）反射器提高超宽带（UWB）应用中紧凑型 CPW-Fed 天线增益的方法。实现了一个尺寸为 30 × 30 mm2 的六边形 CPW-Fed 天线，以提供 UWB 带宽操作。本研究提出了一种新颖的 FSS 单元设计，该单元具有 8 × 8 mm2 的缩小和小尺寸。它可以实现 3 至 11.5 GHz 的 UWB 带挡响应。FSS 反射器有 7 × 7 个单元，总尺寸为 56 × 56 mm2。该反射器放置在天线下方，距离为 20 毫米。本论文的主要目的是提高天线的增益水平，所提出的天线实现了 6.2 dBi 的增益改进，增益从 2.2 dBi 提高到 8.4 dBi。在集成了具有定向辐射模式的 FSS 反射器后，天线变得更具指向性。数值和实验结果与模拟结果十分吻合。这项研究是在电压驻波比、辐射模式、实现增益和辐射效率方面进行的。

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来源期刊

Microwave and Optical Technology Letters 工程技术-工程：电子与电气

CiteScore

3.40

自引率

20.00%

发文量

371

审稿时长

4.3 months

期刊介绍： Microwave and Optical Technology Letters provides quick publication (3 to 6 month turnaround) of the most recent findings and achievements in high frequency technology, from RF to optical spectrum. The journal publishes original short papers and letters on theoretical, applied, and system results in the following areas. - RF, Microwave, and Millimeter Waves - Antennas and Propagation - Submillimeter-Wave and Infrared Technology - Optical Engineering All papers are subject to peer review before publication