Performance enhancement of dual-band antenna for internet of things applications using closed loops

In this Letter, a dual-band antenna with improved performance is proposed by generating a stronger coupling with the ground plane using two closed loops. The antenna is designed in such a way that it is coupled with two orthogonal ground modes in the lower and higher bands. Two closed loops are atta...

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Bibliographic Details
Published inElectronics letters Vol. 55; no. 25; pp. 1324 - 1326
Main Authors Kim, M, Qu, L, Shin, H, Kim, H
Format Journal Article
LanguageEnglish
Published The Institution of Engineering and Technology 12.12.2019
Subjects
Antennas and propagation
closed loops
dual‐band antenna
ground characteristic modes
ground plane
Internet of Things
multifrequency antennas
orthogonal ground modes
performance enhancement
reference antenna
closed loops
dual-band antenna
performance enhancement
orthogonal ground modes
multifrequency antennas
ground characteristic modes
ground plane
Internet of Things
reference antenna
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Summary:In this Letter, a dual-band antenna with improved performance is proposed by generating a stronger coupling with the ground plane using two closed loops. The antenna is designed in such a way that it is coupled with two orthogonal ground modes in the lower and higher bands. Two closed loops are attached at the end of the ground plane to control the frequencies of the two ground characteristic modes. Through simulation and experimental verification, the proposed antenna has obtained greatly improved performance in both bands compared to the reference antenna without closed loops.
ISSN:0013-5194
1350-911X
1350-911X
DOI:10.1049/el.2019.2278