A Novel Low Profile Rectangular Microstrip Patch Antenna for L-Band Applications Using High Permittivity Substrate

  • Gulzar Ahmad Department of Electrical Engineering, University of Engineering and Technology, Peshawar, Pakistan.
  • Asif Sultan Department of Electrical Engineering, University of Engineering and Technology, Peshawar, Pakistan.
  • Tariqullah Jan Department of Electrical Engineering, University of Engineering and Technology, Peshawar, Pakistan.
  • Majid Ashraf Department of Electrical Engineering, University of Engineering and Technology, Peshawar, Pakistan.
  • Muhammad Sarim Department of Computer Science, Federal Urdu University of Arts, Science and Technology, Karachi, Pakistan

Abstract

A novel low-profile and miniaturized patch antenna on a substrate material of high dielectric constant has been designed, fabricated and tested in an indigenous laboratory. It is highly important to reduce the size of patch antenna as it limits the reduction of the sizes of the devices using this antenna. A number oftechniques have been given for the size reduction of patch such as DGS (Defected Ground Structure), use of fractals and the use of metamaterials but in this paper the technique of high permittivity substrate has been implemented. The substrate as well as this conventional antenna has been prepared locally in Pakistan. A ceramic material of chemical composition {(Sr0.5Pb0.25Ca0.25)-Tio3-3Bi2O3.TiO2} having a high dielectric constant has beenused in the substrate of the antenna. The fabricated prototype was investigated experimentally for important parameters using Vector Network analyzer. The total measure of the antenna is 20.5x26.5x1.5 mm3. The antenna presented a large bandwidth of 186 MHz (1070-1256 MHz)in L-Band with a Return Loss of 21.10 dB at resonance. The VSWR (Voltage Standing Wave Ratio) remained under the standard value of 2 in the whole operating range. The proposed antenna may be employed in GPS (Global Positioning System) devices, Amateur Radio, Terrestrial Mobile Communication, Aeronautical and Maritime Mobile and other Military and Low Earth Orbit Satellite Communications.

Published
Oct 1, 2019
How to Cite
AHMAD, Gulzar et al. A Novel Low Profile Rectangular Microstrip Patch Antenna for L-Band Applications Using High Permittivity Substrate. Mehran University Research Journal of Engineering and Technology, [S.l.], v. 38, n. 4, p. 915-922, oct. 2019. ISSN 2413-7219. Available at: <https://publications.muet.edu.pk/index.php/muetrj/article/view/1238>. Date accessed: 17 nov. 2019.
This is an open Access Article published by Mehran University of Engineering and Technolgy, Jamshoro under CCBY 4.0 International License