A Study of Wideband and Compact Slot Antennas Utilizing Special Dispersive Materials

Yang, Xiantao, Calisir, Ilkan, Chen, Lyuwei, Bennett, Elliot Leon ORCID: 0000-0003-3798-4296, Xiao, Jianliang ORCID: 0000-0003-2010-247X and Huang, Yi ORCID: 0000-0001-7774-1024 (2024) A Study of Wideband and Compact Slot Antennas Utilizing Special Dispersive Materials IEEE OPEN JOURNAL OF ANTENNAS AND PROPAGATION, 5 (5). pp. 1414-1422. ISSN 2637-6431, 2637-6431

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Abstract

This paper presents a novel technique for enhancing the slot antenna bandwidth using special dispersive materials for the first time. The dispersive material whose relative permittivity is inversely proportional to the frequency by the power of n is selected and exploited for antenna bandwidth enhancement and size reduction. The concept and theory behind this work are explored. A slot antenna loaded with the new material is proposed and it is shown that the bandwidth of slot antennas using the material with power n=2 can be significantly improved with more than 4 times larger than the traditional case (n=0). The simulated and measured results show excellent properties for wideband improvement and miniaturization which further demonstrates that dispersive materials can open a new path for developing wideband devices and antennas for future wireless communication applications.

Item Type:	Article
Uncontrolled Keywords:	Slot antennas, Broadband antennas, Dispersion, Wideband, Permittivity, Loaded antennas, Antenna theory, Bandwidth enhancement, compact antennas, dispersive materials, miniaturization, slot antennas, wideband antennas
Depositing User:	Symplectic Admin
Date Deposited:	11 Jul 2024 10:09
Last Modified:	23 May 2026 08:57
DOI:	10.1109/OJAP.2024.3424309
Related Websites:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3182794
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