研究了四种不同介质衬底材料的cpw馈电天线在射频多波段应用中的s参数(|S11|)

S. Singh, Tripurari Sharan, Arvind P. Singh
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引用次数: 4

摘要

本文旨在研究多波段共面波导馈电天线的|S11|参数。本文提出的天线-1 (ant1)和天线-2 (ant2)为方形,主要由三个接地端子桩组成:终端-1 (T1)、终端-2 (T2)和终端-3 (T3),它们都有一个倒l形辐射贴片。该天线的谐振频率fr可通过短段谐振器的电气尺寸和长度、衬底材料的介电常数εr及其合适的厚度来调节。这将影响它们的回波损耗(|S11|)、阻抗带宽(IBW)、辐射方向图和天线在频率特性方面的性能,如本文所示。该结构基于阻燃玻璃纤维环氧树脂(FR4)衬底,覆盖了1.5 ~ 3.2 GHz (IBW = 1.7 GHz)和3.4 ~ 3.65 GHz (IBW = 0.25 GHz)的宽带频率范围。总IBW为1.95 GHz,在S11≤- 10 dB时,有三个谐振频率fr1 = 1.75, fr2 = 2.65和fr3 = 3.50 GHz)用于三频段应用。结果与前人的研究工作进行了比较。提议的Ant.1确保双频段和三频段应用,而提议的Ant. 2确保双频段、三频段和四频段应用,其天线尺寸与之前报道的工作类似。此外,还深入探讨和分析了设计技术以及不同衬底材料和多短段谐振腔长度对工作频带和谐振频率的影响。
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Investigating the S-parameter (|S11|) of CPW-fed antenna using four different dielectric substrate materials for RF multiband applications

This article aims to examine the |S11| parameter of a multiband Coplanar Waveguide (CPW)-fed antenna. The proposed square-shaped antenna-1 (Ant.1) and antenna-2 (Ant. 2) are primarily composed of three ground terminal stubs: Terminal-1 (T1), Terminal-2 (T2), and Terminal-3 (T3), all of which have an inverted L-shaped radiating patch. The proposed antennas' resonance frequencies (fr) can be adjusted by the electrical dimension and length of the stub resonators, the dielectric constant (εr) of substrate materials, and their appropriate thicknesses. It will have an impact on their return loss (|S11|), Impedance Bandwidth (IBW), radiation pattern, and antenna performance in terms of frequency characteristics, as demonstrated in this article. The proposed structure based on Flame-Retardant fiber glass epoxy (FR4) substrate covered a wideband frequency range from 1.5 to 3.2 GHz, (IBW = 1.7 GHz) and from 3.4 to 3.65 GHz (IBW = 0.25 GHz). The total IBW is 1.95 GHz, at S11 ≤ −10 dB with three resonance frequencies of values fr1 = 1.75, fr2 = 2.65, and fr3 = 3.50 GHz) for triple-band applications. The results are compared with the research work reported earlier. The proposed Ant.1 ensured, dual and triple band applications whereas the proposed Ant. 2 ensured dual, triple and quad bands applications with reasonable antennas' sizes similar to the earlier reported works. Furthermore, the design technique as well as the impacts of various substrate materials and multi-stub resonator lengths on the operating bands and resonance frequency are thoroughly explored and analyzed.

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来源期刊
AIMS Electronics and Electrical Engineering
AIMS Electronics and Electrical Engineering Engineering-Control and Systems Engineering
CiteScore
2.40
自引率
0.00%
发文量
19
审稿时长
8 weeks
期刊最新文献
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