Dual frequency circularly polarized cross-shaped slotted patch antenna with a small frequency ratio

Md Samsuzzaman, Mohammad Tariqul Islam

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

A compact novel probe-feed single-layer annular ring, dual-frequency circularly polarized (CP) microstrip antenna is assessed numerically and experimentally in this communication. The antenna characterizes a small frequency ratio with good impedance bandwidth. The dual band operations are realized using two circular patches with one annular ring slot and exact feed position. In addition, a cross shaped slot is placed in the patch to achieve circular polarization. The antenna geometry structure is simulated using a commercially available electromagnetic solver high frequency structural simulator. The simulated and measured results, costly match within the operating bandwidth. The experimental results depict a 10-dB return loss bandwidth of 15 MHz (2.415-2.430 GHz) for the lower band and 15 MHz (2.895-2.910 GHz) for the upper band, respectively. The measured 3-dB axial ratio bandwidth is 0.826% (2.410-2.430 GHz) for the lower band and 0.862% (2.880-2.905 GHz) for the upper band. The frequency ratio of the upper and lower band is 1.19. The overall antenna size is 0.363 λ0 × 0.363 λ0 × 0.013 λ0 at 2.42 GHz. Details of the obtained dual band CP performances are also presented and discussed.

Original languageEnglish
Pages (from-to)2711-2719
Number of pages9
JournalMicrowave and Optical Technology Letters
Volume56
Issue number11
DOIs
Publication statusPublished - 2014

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slot antennas
patch antennas
Microstrip antennas
Bandwidth
Antennas
bandwidth
antennas
Circular polarization
slots
Simulators
microstrip antennas
rings
circular polarization
Geometry
Communication
simulators
communication
impedance
electromagnetism
probes

Keywords

  • annular ring slot
  • circular polarization
  • cross slot
  • dual-band antenna
  • microstrip antenna
  • small frequency ratio

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics
  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Cite this

Dual frequency circularly polarized cross-shaped slotted patch antenna with a small frequency ratio. / Samsuzzaman, Md; Islam, Mohammad Tariqul.

In: Microwave and Optical Technology Letters, Vol. 56, No. 11, 2014, p. 2711-2719.

Research output: Contribution to journalArticle

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