A compact dual-band GPS microstrip antenna

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The microstrip antenna has been a very attractive antenna for circularly polarized (CP) operation with compact size. Typically, a corner-truncated square microstrip patch antenna on a relatively thick substrate of high dielectric constant is used for global positioning system (GPS) applications at the L1 frequency of 1.575 GHz. Recently, in order to satisfy the demand for precise and reliable GPS receivers, a high-performance CP antenna covering both L1(1.575 GHz) and L2 (1.227 GHz) bands are required. Because the two CP operation frequencies are close, generally the stacked microstrip antenna can be used. In this study, a new design of a probe-fed dual-band microstrip antenna with two truncated corners square patches that overlap without an airgap is presented. Two L-shaped slotted patch antenna with a small frequency ratio is proposed for GPS applications. The antenna occupies a compact dimension of 31.5 mm x 31.5 mm. A good impedance bandwidth of 12.04 MHz has been achieved for the lower band, while the upper band covers 14.42 MHz. The gain is more than 3 dBi over both the bands. The proposed antenna shows stable radiation characteristics for the frequencies of interest. Furthermore, an extensive parametric study was performed to realize the relationship between the resonance frequencies in the two bands and different parameters which is helpful for advancement of the antenna design.

Original languageEnglish
Pages (from-to)1214-1218
Number of pages5
JournalAdvances in Natural and Applied Sciences
Volume6
Issue number8
Publication statusPublished - 2012

Fingerprint

Geographic Information Systems
global positioning systems
Microstrip antennas
antennae
Global positioning system
Antennas
Electric Impedance
Radiation
Antenna feeders
Permittivity
Bandwidth
impedance
probes (equipment)
Substrates

Keywords

  • Dual-band
  • GPS
  • Microstrip patch antenna

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Chemical Engineering(all)
  • Engineering(all)

Cite this

A compact dual-band GPS microstrip antenna. / Hussine, Umniyyah Ulfa; Islam, Mohammad Tariqul; Misran, Norbahiah.

In: Advances in Natural and Applied Sciences, Vol. 6, No. 8, 2012, p. 1214-1218.

Research output: Contribution to journalArticle

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