Miniaturized Spoof Plasmonic Antennas with Good Impedance Matching

The ability of spoof surface plasmon polaritons (SSPPs) to confine electromagnetic fields in a subwavelength regime enables the design of miniaturized antennas. However, the impedance matching scheme for miniaturized spoof plasmonic antennas has not been studied systematically. In this paper, we pro...

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Main Authors: Yi Ren, Jingjing Zhang, Xinxin Gao, Xin Zheng, Le Peng Zhang, Tie Jun Cui
Format: Article
Language:English
Published: MDPI AG 2022-12-01
Series:Nanomaterials
Subjects:
Online Access:https://www.mdpi.com/2079-4991/13/1/136
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author Yi Ren
Jingjing Zhang
Xinxin Gao
Xin Zheng
Le Peng Zhang
Tie Jun Cui
author_facet Yi Ren
Jingjing Zhang
Xinxin Gao
Xin Zheng
Le Peng Zhang
Tie Jun Cui
author_sort Yi Ren
collection DOAJ
description The ability of spoof surface plasmon polaritons (SSPPs) to confine electromagnetic fields in a subwavelength regime enables the design of miniaturized antennas. However, the impedance matching scheme for miniaturized spoof plasmonic antennas has not been studied systematically. In this paper, we propose a general method in the antenna design based on SSPPs, providing a feasible solution to impedance matching at the feeding point of miniaturized spoof plasmonic antennas. To verify the method, a prototype of a planar spoof plasmonic dipole antenna is simulated, fabricated and measured, of which the dipole arm length is reduced by 35.2% as compared with the traditional dipole antenna. A peak gain level of 4.29 dBi and the radiation efficiency of about 94.5% were measured at 6 GHz. This general method can be extended to solve the impedance matching problem in the design of other spoof plasmonic devices.
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spelling doaj.art-d60708cd68a04a0088c7c291045c7d262023-12-02T00:44:43ZengMDPI AGNanomaterials2079-49912022-12-0113113610.3390/nano13010136Miniaturized Spoof Plasmonic Antennas with Good Impedance MatchingYi Ren0Jingjing Zhang1Xinxin Gao2Xin Zheng3Le Peng Zhang4Tie Jun Cui5Institute of Electromagnetic Space, Southeast University, Nanjing 210096, ChinaInstitute of Electromagnetic Space, Southeast University, Nanjing 210096, ChinaInstitute of Electromagnetic Space, Southeast University, Nanjing 210096, ChinaInstitute of Electromagnetic Space, Southeast University, Nanjing 210096, ChinaInstitute of Electromagnetic Space, Southeast University, Nanjing 210096, ChinaInstitute of Electromagnetic Space, Southeast University, Nanjing 210096, ChinaThe ability of spoof surface plasmon polaritons (SSPPs) to confine electromagnetic fields in a subwavelength regime enables the design of miniaturized antennas. However, the impedance matching scheme for miniaturized spoof plasmonic antennas has not been studied systematically. In this paper, we propose a general method in the antenna design based on SSPPs, providing a feasible solution to impedance matching at the feeding point of miniaturized spoof plasmonic antennas. To verify the method, a prototype of a planar spoof plasmonic dipole antenna is simulated, fabricated and measured, of which the dipole arm length is reduced by 35.2% as compared with the traditional dipole antenna. A peak gain level of 4.29 dBi and the radiation efficiency of about 94.5% were measured at 6 GHz. This general method can be extended to solve the impedance matching problem in the design of other spoof plasmonic devices.https://www.mdpi.com/2079-4991/13/1/136spoof surface plasmon polaritonsminiaturized antennaimpedance matching
spellingShingle Yi Ren
Jingjing Zhang
Xinxin Gao
Xin Zheng
Le Peng Zhang
Tie Jun Cui
Miniaturized Spoof Plasmonic Antennas with Good Impedance Matching
Nanomaterials
spoof surface plasmon polaritons
miniaturized antenna
impedance matching
title Miniaturized Spoof Plasmonic Antennas with Good Impedance Matching
title_full Miniaturized Spoof Plasmonic Antennas with Good Impedance Matching
title_fullStr Miniaturized Spoof Plasmonic Antennas with Good Impedance Matching
title_full_unstemmed Miniaturized Spoof Plasmonic Antennas with Good Impedance Matching
title_short Miniaturized Spoof Plasmonic Antennas with Good Impedance Matching
title_sort miniaturized spoof plasmonic antennas with good impedance matching
topic spoof surface plasmon polaritons
miniaturized antenna
impedance matching
url https://www.mdpi.com/2079-4991/13/1/136
work_keys_str_mv AT yiren miniaturizedspoofplasmonicantennaswithgoodimpedancematching
AT jingjingzhang miniaturizedspoofplasmonicantennaswithgoodimpedancematching
AT xinxingao miniaturizedspoofplasmonicantennaswithgoodimpedancematching
AT xinzheng miniaturizedspoofplasmonicantennaswithgoodimpedancematching
AT lepengzhang miniaturizedspoofplasmonicantennaswithgoodimpedancematching
AT tiejuncui miniaturizedspoofplasmonicantennaswithgoodimpedancematching