Circular microstrip slot antenna for dual-frequency RFID application

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84 Citations (Scopus)

Abstract

A compact wideband dual-frequency microstrip antenna is proposed in this paper. By employing an offset microstrip-fed line and a strip close to the radiating edges in the circular slot patch, an antenna operating at dual frequency with the impedance bandwidth of 26.2% and 22.2% respectively is presented. By attaching a strip to the radiating edges opposite to the microstrip-fed line, this alters the current distribution and radiation on the antenna at the second resonant frequency. The second frequency is also tunable by varying the lengths of the microstrip-fed line. It is demonstrated that the proposed antenna covers the widebands of UHF and microwave for RFID application. A good agreement is obtained between the simulated and experimental results.

Original languageEnglish
Pages (from-to)499-512
Number of pages14
JournalProgress in Electromagnetics Research
Volume120
Publication statusPublished - 2011

Fingerprint

slot antennas
Slot antennas
microstrip antennas
Microstrip antennas
Radio frequency identification (RFID)
Antennas
strip
antennas
broadband
Natural frequencies
patch antennas
Microwaves
current distribution
Bandwidth
Radiation
slots
resonant frequencies
impedance
bandwidth
microwaves

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Radiation
  • Electrical and Electronic Engineering

Cite this

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title = "Circular microstrip slot antenna for dual-frequency RFID application",
abstract = "A compact wideband dual-frequency microstrip antenna is proposed in this paper. By employing an offset microstrip-fed line and a strip close to the radiating edges in the circular slot patch, an antenna operating at dual frequency with the impedance bandwidth of 26.2{\%} and 22.2{\%} respectively is presented. By attaching a strip to the radiating edges opposite to the microstrip-fed line, this alters the current distribution and radiation on the antenna at the second resonant frequency. The second frequency is also tunable by varying the lengths of the microstrip-fed line. It is demonstrated that the proposed antenna covers the widebands of UHF and microwave for RFID application. A good agreement is obtained between the simulated and experimental results.",
author = "Tiang, {J. J.} and Islam, {Mohammad Tariqul} and Norbahiah Misran and {Jit Singh}, {Mandeep Singh}",
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T1 - Circular microstrip slot antenna for dual-frequency RFID application

AU - Tiang, J. J.

AU - Islam, Mohammad Tariqul

AU - Misran, Norbahiah

AU - Jit Singh, Mandeep Singh

PY - 2011

Y1 - 2011

N2 - A compact wideband dual-frequency microstrip antenna is proposed in this paper. By employing an offset microstrip-fed line and a strip close to the radiating edges in the circular slot patch, an antenna operating at dual frequency with the impedance bandwidth of 26.2% and 22.2% respectively is presented. By attaching a strip to the radiating edges opposite to the microstrip-fed line, this alters the current distribution and radiation on the antenna at the second resonant frequency. The second frequency is also tunable by varying the lengths of the microstrip-fed line. It is demonstrated that the proposed antenna covers the widebands of UHF and microwave for RFID application. A good agreement is obtained between the simulated and experimental results.

AB - A compact wideband dual-frequency microstrip antenna is proposed in this paper. By employing an offset microstrip-fed line and a strip close to the radiating edges in the circular slot patch, an antenna operating at dual frequency with the impedance bandwidth of 26.2% and 22.2% respectively is presented. By attaching a strip to the radiating edges opposite to the microstrip-fed line, this alters the current distribution and radiation on the antenna at the second resonant frequency. The second frequency is also tunable by varying the lengths of the microstrip-fed line. It is demonstrated that the proposed antenna covers the widebands of UHF and microwave for RFID application. A good agreement is obtained between the simulated and experimental results.

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