Design of a Superstrate Module for Simple Resonant Frequency Tuning

This paper proposes the design of a dual-band circularly polarized antenna with an exchangeable superstrate module to compensate for the unwanted frequency shift without the re-fabrication process. The proposed antenna consists of inner and outer circular ring patches printed on the same layer of a...

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Main Authors: Tae Heung Lim, Hosung Choo, Gangil Byun
Format: Article
Language:English
Published: IEEE 2019-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/8676228/
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author Tae Heung Lim
Hosung Choo
Gangil Byun
author_facet Tae Heung Lim
Hosung Choo
Gangil Byun
author_sort Tae Heung Lim
collection DOAJ
description This paper proposes the design of a dual-band circularly polarized antenna with an exchangeable superstrate module to compensate for the unwanted frequency shift without the re-fabrication process. The proposed antenna consists of inner and outer circular ring patches printed on the same layer of a substrate, and the mushroom-shaped superstrate is inserted to the substrate hole placed in the middle of the inner ring patch. The proposed superstrate structure adaptively adjusts the resonant frequency by selecting appropriate heights of the superstrate module. By inserting the superstrate module with the height of 2 mm, the maximum frequency shift of 20 MHz was obtained with the improved gain of about 0.9 dB at 1.42 GHz without any deteriorations on the AR and radiation patterns.
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spelling doaj.art-7d25828e283643d9a54257bacf0ef3922022-12-21T22:57:15ZengIEEEIEEE Access2169-35362019-01-017437424374810.1109/ACCESS.2019.29077498676228Design of a Superstrate Module for Simple Resonant Frequency TuningTae Heung Lim0Hosung Choo1https://orcid.org/0000-0002-8409-6964Gangil Byun2https://orcid.org/0000-0001-9388-9205School of Electronic and Electrical Engineering, Hongik University, Seoul, South KoreaSchool of Electronic and Electrical Engineering, Hongik University, Seoul, South KoreaSchool of Electrical and Computer Engineering, Ulsan National Institute of Science and Technology, Ulsan, South KoreaThis paper proposes the design of a dual-band circularly polarized antenna with an exchangeable superstrate module to compensate for the unwanted frequency shift without the re-fabrication process. The proposed antenna consists of inner and outer circular ring patches printed on the same layer of a substrate, and the mushroom-shaped superstrate is inserted to the substrate hole placed in the middle of the inner ring patch. The proposed superstrate structure adaptively adjusts the resonant frequency by selecting appropriate heights of the superstrate module. By inserting the superstrate module with the height of 2 mm, the maximum frequency shift of 20 MHz was obtained with the improved gain of about 0.9 dB at 1.42 GHz without any deteriorations on the AR and radiation patterns.https://ieeexplore.ieee.org/document/8676228/Dielectric substrateantennasfrequency controldielectric devices
spellingShingle Tae Heung Lim
Hosung Choo
Gangil Byun
Design of a Superstrate Module for Simple Resonant Frequency Tuning
IEEE Access
Dielectric substrate
antennas
frequency control
dielectric devices
title Design of a Superstrate Module for Simple Resonant Frequency Tuning
title_full Design of a Superstrate Module for Simple Resonant Frequency Tuning
title_fullStr Design of a Superstrate Module for Simple Resonant Frequency Tuning
title_full_unstemmed Design of a Superstrate Module for Simple Resonant Frequency Tuning
title_short Design of a Superstrate Module for Simple Resonant Frequency Tuning
title_sort design of a superstrate module for simple resonant frequency tuning
topic Dielectric substrate
antennas
frequency control
dielectric devices
url https://ieeexplore.ieee.org/document/8676228/
work_keys_str_mv AT taeheunglim designofasuperstratemoduleforsimpleresonantfrequencytuning
AT hosungchoo designofasuperstratemoduleforsimpleresonantfrequencytuning
AT gangilbyun designofasuperstratemoduleforsimpleresonantfrequencytuning