An antenna with second−iteration fractal patch and parallel−plane grounds for UWB/X/Ku/K band applications

Telematics and Informatics Reports Pub Date : 2024-11-20 DOI:10.1016/j.teler.2024.100174

Fahim Shahriyar Abir, Rubina Parveen, Md Samiul Islam, Md. Abubakar Siddik, Mahfujur Rahman

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Abstract

The antenna proposed in this article is structured on a Rogers RT5880 (lossy) substrate holding two grounds parallel on two opposite planes, one adjacent to the transmission path feeding the fractal patch. These grounds are named as parallel

-

plane grounds (PPGs). The fractal antenna features a compact size of 17.7

\times 9.8 \times

1.575 mm³ unveiling a −10 dB impedance bandwidth of 19.5 GHz (3.2 GHz–22.7 GHz). The iterative ratio,

r

has an impact on the impedance bandwidth resembling other design parameters. A transient bandwidth enhancement is achievable by keeping the iterative ratio in a range of (0.6–1.1). In this range, the bandwidth gets enhanced as

r

ascends. The ground adjacent to the feeding path helped to achieve responses in X band (8 GHz–12 GHz), and K_u band (12 GHz–18 GHz) crossing the range of the whole ultra

-

wideband (3.1 GHz–10.6 GHz). It responds in some spectrum (18 GHz–22.7 GHz) of the K band (18 GHz–27 GHz) also.

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用于 UWB/X/Ku/K 波段应用的带二次迭代分形贴片和平行面基底的天线

本文提出的天线结构基于罗杰斯 RT5880（有损）基板，基板上有两个平行于两个相对平面的地线，其中一个与馈给分形贴片的传输路径相邻。这些地基被命名为平行平面地基（PPG）。分形天线的尺寸为 17.7×9.8×1.575 mm3，结构紧凑，阻抗带宽为 -10 dB，频率范围为 19.5 GHz（3.2 GHz-22.7 GHz）。迭代比 r 对阻抗带宽的影响与其他设计参数类似。将迭代比保持在（0.6-1.1）的范围内可实现瞬态带宽增强。在此范围内，带宽随着 r 的增大而增强。与馈电路径相邻的地面有助于实现 X 波段（8 GHz-12 GHz）和 Ku 波段（12 GHz-18 GHz）的响应，跨越了整个超宽带（3.1 GHz-10.6 GHz）的范围。它对 K 波段（18 千兆赫-27 千兆赫）的某些频谱（18 千兆赫-22.7 千兆赫）也有响应。

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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来源期刊

Telematics and Informatics Reports

CiteScore

1.90

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