A quarter-wave Y-shaped patch antenna with two unequal arms for wideband ultra high frequency radio-frequency identification (UHF RFID) operations

Kelechi Hilary Anabi, Mandeep Singh Jit Singh, Mohammad Tariqul Islam, J. J. Tiang

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The radio-frequency identification (RFID) system which has become pervasive in the auto identification technology has been noticed to have several limitations. These limitations can be broadly divided into two major areas namely; application specific problems and general RFID problems. Application specific problems are common to the environment in which RFID tags are deployed such as metal, aqueous and irradiation environments. Whilst, the general problem of RFID tags include low gain, regional specifications and so on. In this paper, a new antenna prototype has been design and stimulated. The proposed antenna showed tendency of exhibiting improved gain from the previous RFID UHF antenna which is 0-1 dBi to -3 dBi and impedance bandwidth of 140 MHz. The proposed antenna is Y shaped patch with unequal monopole arms which are responsible for the different frequencies that the antenna operates and a quarter wavelengths was adopted rather than the popular half wavelength for size reduction. The fractional return-loss bandwidth for S11<10 dB and radiation efficiency are about 95% was obtained.

Original languageEnglish
Pages (from-to)6200-6209
Number of pages10
JournalInternational Journal of Physical Sciences
Volume6
Issue number26
Publication statusPublished - 30 Oct 2011

Fingerprint

patch antennas
ultrahigh frequencies
Microstrip antennas
Radio frequency identification (RFID)
radio frequencies
antennas
Antennas
broadband
bandwidth
Bandwidth
Wavelength
system identification
wavelengths
monopoles
specifications
tendencies
Metals
prototypes
Irradiation
impedance

Keywords

  • Impedance bandwidth
  • Microstrip antenna
  • Passive ultra high frequency radio-frequency identification (UHF RFID) tags

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Electronic, Optical and Magnetic Materials

Cite this

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title = "A quarter-wave Y-shaped patch antenna with two unequal arms for wideband ultra high frequency radio-frequency identification (UHF RFID) operations",
abstract = "The radio-frequency identification (RFID) system which has become pervasive in the auto identification technology has been noticed to have several limitations. These limitations can be broadly divided into two major areas namely; application specific problems and general RFID problems. Application specific problems are common to the environment in which RFID tags are deployed such as metal, aqueous and irradiation environments. Whilst, the general problem of RFID tags include low gain, regional specifications and so on. In this paper, a new antenna prototype has been design and stimulated. The proposed antenna showed tendency of exhibiting improved gain from the previous RFID UHF antenna which is 0-1 dBi to -3 dBi and impedance bandwidth of 140 MHz. The proposed antenna is Y shaped patch with unequal monopole arms which are responsible for the different frequencies that the antenna operates and a quarter wavelengths was adopted rather than the popular half wavelength for size reduction. The fractional return-loss bandwidth for S11<10 dB and radiation efficiency are about 95{\%} was obtained.",
keywords = "Impedance bandwidth, Microstrip antenna, Passive ultra high frequency radio-frequency identification (UHF RFID) tags",
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AU - Anabi, Kelechi Hilary

AU - Jit Singh, Mandeep Singh

AU - Islam, Mohammad Tariqul

AU - Tiang, J. J.

PY - 2011/10/30

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AB - The radio-frequency identification (RFID) system which has become pervasive in the auto identification technology has been noticed to have several limitations. These limitations can be broadly divided into two major areas namely; application specific problems and general RFID problems. Application specific problems are common to the environment in which RFID tags are deployed such as metal, aqueous and irradiation environments. Whilst, the general problem of RFID tags include low gain, regional specifications and so on. In this paper, a new antenna prototype has been design and stimulated. The proposed antenna showed tendency of exhibiting improved gain from the previous RFID UHF antenna which is 0-1 dBi to -3 dBi and impedance bandwidth of 140 MHz. The proposed antenna is Y shaped patch with unequal monopole arms which are responsible for the different frequencies that the antenna operates and a quarter wavelengths was adopted rather than the popular half wavelength for size reduction. The fractional return-loss bandwidth for S11<10 dB and radiation efficiency are about 95% was obtained.

KW - Impedance bandwidth

KW - Microstrip antenna

KW - Passive ultra high frequency radio-frequency identification (UHF RFID) tags

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