Dielectric Loaded Frequency Tunable Fabry–Perot Resonator Antenna With PRS for X-Band Applications

IF 1.9 Q3 COMPUTER SCIENCE, HARDWARE & ARCHITECTURE
V. Bharathi;Krishnamurthy Ramanujam;Parthasarathy Ramanujam
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Abstract

In this article, a reconfigurable Fabry–Perot resonator antenna with a microstrip feed is proposed for X-band applications. The proposed radiator comprises a slotted circular patch with a single layer of a partially reflective surface (PRS). This PRS is positioned on top of the radiator at a distance of 9 mm. This arrangement exhibits a wide operating bandwidth from 8 to 12.4 GHz with electrical dimensions of ${2.34} \,\lambda _{g} \times {2.34} \, \lambda _{g} \times {0.23} \,\lambda _{g}$ , where $\lambda _{g}$ the guided wavelength is calculated at the center frequency of 10.2 GHz. The proposed antenna has an average gain of 7.01 dBi and covers an impedance bandwidth of 40% relative to the center frequency of 10.2 GHz. Moreover, it has the distinctive feature of frequency tuning from a wideband to a narrowband by filling different dielectric materials in the slots etched on the substrate. Distilled water, vinegar, salt, and dry wood powder are used in the slots that tune the band from 7.9 to 8.4, 8.5 to 10.5, 10 to 10.5, and 10.15 to 10.7 GHz, respectively. Thus, the frequency tunability of the proposed radiator makes it highly adaptable for various X-band applications. With precise frequency tuning capability, the antenna can mitigate interference in point-to-point telecom systems, enhancing the target detection in weather radar for small aircraft, and improving the sensitivity and range in radar motion detectors.
带PRS的介电负载频率可调谐法布里-珀罗谐振器天线,用于x波段应用
本文提出了一种用于x波段应用的微带馈电可重构法布里-珀罗谐振器天线。所提出的散热器包括具有单层部分反射表面(PRS)的开槽圆形贴片。此PRS位于散热器顶部,距离为9毫米。这种布置具有8 ~ 12.4 GHz的宽工作带宽,电尺寸为${2.34}\,\lambda _{g} \乘以{2.34}\,\lambda _{g} \乘以{0.23}\,\lambda _{g}$,其中$\lambda _{g}$在10.2 GHz的中心频率处计算导波。该天线的平均增益为7.01 dBi,相对于10.2 GHz的中心频率,其阻抗带宽为40%。此外,它还具有通过在衬底上蚀刻的槽中填充不同的介电材料从宽带到窄带进行频率调谐的显著特征。蒸馏水、醋、盐和干木粉分别用于7.9至8.4 GHz、8.5至10.5 GHz、10至10.5 GHz和10.15至10.7 GHz的频段。因此,所提出的辐射器的频率可调性使其高度适应各种x波段应用。该天线具有精确的频率调谐能力,可以减轻点对点通信系统中的干扰,增强小型飞机气象雷达的目标探测能力,提高雷达运动探测器的灵敏度和距离。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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CiteScore
3.70
自引率
0.00%
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0
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