A Frequency-Reconfigurable Dielectric Resonator Antenna With a Water Layer

Zhe Chen; Hao-Zhan Li; Hang Wong; Wei He; Jian Ren; Tao Yuan

doi:10.1109/LAWP.2023.3246110

A Frequency-Reconfigurable Dielectric Resonator Antenna With a Water Layer

Zhe Chen, Hao-Zhan Li, Hang Wong, Wei He, Jian Ren, Tao Yuan^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

32 Citations (Scopus)

Abstract

This letter introduces a frequency-reconfigurable dielectric resonator antenna (DRA) with water layer integration. The proposed method is based on the strategy combination of mode reconfiguration and dielectric loading. First, the frequency band of the DRA is reconfigured between the resonant frequencies of the fundamental T E₁₁₁^y and quasi-T E₁₁₃^y modes by flowing liquid control of water pumping in and out of the microfluidic cavity. Then, the frequency response of quasi-T E₁₁₃^y mode is continuously swept by altering the thickness of water layer. For demonstration, the DRA is designed with a solid dielectric material of K9 glass with the permittivity of 6.25 and loaded with a layer of fresh water with the permittivity of 77. Finally, the proposed antenna is fabricated and measured, which performs with a wideband reconfigurability and stable far-field performance corresponding to the different frequency responses. © 2023 IEEE.

Original language	English
Pages (from-to)	1456-1460
Journal	IEEE Antennas and Wireless Propagation Letters
Volume	22
Issue number	6
Online published	17 Feb 2023
DOIs	https://doi.org/10.1109/LAWP.2023.3246110
Publication status	Published - Jun 2023

Funding

This work was supported in part by the National Natural Science Foundation of China under Grant 62001305; in part by the Shenzhen Science and Technology Innovation Commission, under Grant RCBS20210609103055037; and in part by the Guangdong Provincial Department of Science and Technology, under Grants 2020B1212030002 and 2022B1515130011.

Research Keywords

Broadband antenna
dielectric resonator antenna (DRA)
frequency reconfigurable

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title = "A Frequency-Reconfigurable Dielectric Resonator Antenna With a Water Layer",

abstract = "This letter introduces a frequency-reconfigurable dielectric resonator antenna (DRA) with water layer integration. The proposed method is based on the strategy combination of mode reconfiguration and dielectric loading. First, the frequency band of the DRA is reconfigured between the resonant frequencies of the fundamental T E111y and quasi-T E113y modes by flowing liquid control of water pumping in and out of the microfluidic cavity. Then, the frequency response of quasi-T E113y mode is continuously swept by altering the thickness of water layer. For demonstration, the DRA is designed with a solid dielectric material of K9 glass with the permittivity of 6.25 and loaded with a layer of fresh water with the permittivity of 77. Finally, the proposed antenna is fabricated and measured, which performs with a wideband reconfigurability and stable far-field performance corresponding to the different frequency responses. {\textcopyright} 2023 IEEE.",

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T1 - A Frequency-Reconfigurable Dielectric Resonator Antenna With a Water Layer

AU - Chen, Zhe

AU - Li, Hao-Zhan

AU - Wong, Hang

AU - He, Wei

AU - Ren, Jian

AU - Yuan, Tao

PY - 2023/6

Y1 - 2023/6

N2 - This letter introduces a frequency-reconfigurable dielectric resonator antenna (DRA) with water layer integration. The proposed method is based on the strategy combination of mode reconfiguration and dielectric loading. First, the frequency band of the DRA is reconfigured between the resonant frequencies of the fundamental T E111y and quasi-T E113y modes by flowing liquid control of water pumping in and out of the microfluidic cavity. Then, the frequency response of quasi-T E113y mode is continuously swept by altering the thickness of water layer. For demonstration, the DRA is designed with a solid dielectric material of K9 glass with the permittivity of 6.25 and loaded with a layer of fresh water with the permittivity of 77. Finally, the proposed antenna is fabricated and measured, which performs with a wideband reconfigurability and stable far-field performance corresponding to the different frequency responses. © 2023 IEEE.

AB - This letter introduces a frequency-reconfigurable dielectric resonator antenna (DRA) with water layer integration. The proposed method is based on the strategy combination of mode reconfiguration and dielectric loading. First, the frequency band of the DRA is reconfigured between the resonant frequencies of the fundamental T E111y and quasi-T E113y modes by flowing liquid control of water pumping in and out of the microfluidic cavity. Then, the frequency response of quasi-T E113y mode is continuously swept by altering the thickness of water layer. For demonstration, the DRA is designed with a solid dielectric material of K9 glass with the permittivity of 6.25 and loaded with a layer of fresh water with the permittivity of 77. Finally, the proposed antenna is fabricated and measured, which performs with a wideband reconfigurability and stable far-field performance corresponding to the different frequency responses. © 2023 IEEE.

KW - Broadband antenna

KW - dielectric resonator antenna (DRA)

KW - frequency reconfigurable

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JO - IEEE Antennas and Wireless Propagation Letters

JF - IEEE Antennas and Wireless Propagation Letters

IS - 6

ER -

A Frequency-Reconfigurable Dielectric Resonator Antenna With a Water Layer

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