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Wideband design of compact monopole-Like circular patch antenna using modal analysis

Nie, Liying LU ; Lau, Buon Kiong LU ; Xiang, Shang LU ; Aliakbari Abar, Hanieh LU orcid ; Wang, Bao and Lin, Xian Qi (2021) In IEEE Antennas and Wireless Propagation Letters 20(6). p.918-922
Abstract
In this paper, we present a systematic approach to design a compact dual-mode monopole-like patch antenna using characteristic mode analysis (CMA). The modal analysis of a slotted circular patch structure incorporating a new shorting pin loading technique is presented. To achieve a compact monopole-like antenna with wideband operation, it is demonstrated that the first two significant modes with monopole-like patterns are the most suitable ones for dual-mode excitation. Based on the analysis of the modal currents and electric fields, four groups of shorting pins and four slots are introduced to individually tune the two modes, which facilitates the optimization. The effects of these slots and shorting pins on the resonant frequencies of... (More)
In this paper, we present a systematic approach to design a compact dual-mode monopole-like patch antenna using characteristic mode analysis (CMA). The modal analysis of a slotted circular patch structure incorporating a new shorting pin loading technique is presented. To achieve a compact monopole-like antenna with wideband operation, it is demonstrated that the first two significant modes with monopole-like patterns are the most suitable ones for dual-mode excitation. Based on the analysis of the modal currents and electric fields, four groups of shorting pins and four slots are introduced to individually tune the two modes, which facilitates the optimization. The effects of these slots and shorting pins on the resonant frequencies of the two modes are analyzed in detail. Finally, a CPW T-junction power divider is applied to simultaneously excite these two modes and suppress the undesired modes. Apart from a more compact form factor and higher gain than existing work, it also features a competitive gain-bandwidth per volume ratio. (Less)
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author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Compact antenna, characteristic mode analysis, patch antenna, multimode antenna
in
IEEE Antennas and Wireless Propagation Letters
volume
20
issue
6
pages
5 pages
publisher
IEEE - Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • scopus:85103245447
ISSN
1548-5757
DOI
10.1109/LAWP.2021.3066985
project
Theory, Computation and Application of Characteristics Modes
Optimal MIMO Terminal Antennas for 5G and Beyond
language
English
LU publication?
yes
id
e635a87b-dba6-4fea-91de-1febe0e9aa24
date added to LUP
2021-03-20 11:33:32
date last changed
2025-04-04 15:21:32
@article{e635a87b-dba6-4fea-91de-1febe0e9aa24,
  abstract     = {{In this paper, we present a systematic approach to design a compact dual-mode monopole-like patch antenna using characteristic mode analysis (CMA). The modal analysis of a slotted circular patch structure incorporating a new shorting pin loading technique is presented. To achieve a compact monopole-like antenna with wideband operation, it is demonstrated that the first two significant modes with monopole-like patterns are the most suitable ones for dual-mode excitation. Based on the analysis of the modal currents and electric fields, four groups of shorting pins and four slots are introduced to individually tune the two modes, which facilitates the optimization. The effects of these slots and shorting pins on the resonant frequencies of the two modes are analyzed in detail. Finally, a CPW T-junction power divider is applied to simultaneously excite these two modes and suppress the undesired modes. Apart from a more compact form factor and higher gain than existing work, it also features a competitive gain-bandwidth per volume ratio.}},
  author       = {{Nie, Liying and Lau, Buon Kiong and Xiang, Shang and Aliakbari Abar, Hanieh and Wang, Bao and Lin, Xian Qi}},
  issn         = {{1548-5757}},
  keywords     = {{Compact antenna; characteristic mode analysis; patch antenna; multimode antenna}},
  language     = {{eng}},
  number       = {{6}},
  pages        = {{918--922}},
  publisher    = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
  series       = {{IEEE Antennas and Wireless Propagation Letters}},
  title        = {{Wideband design of compact monopole-Like circular patch antenna using modal analysis}},
  url          = {{https://lup.lub.lu.se/search/files/95528655/Wideband_Design_of_Compact_Monopole_Like_Circular_Patch_Antenna_Using_Modal_Analysis_submitted.pdf}},
  doi          = {{10.1109/LAWP.2021.3066985}},
  volume       = {{20}},
  year         = {{2021}},
}