volume | PIER Journals

Abstract

Using a new combined approach, the effect of the uniaxial anisotropic dielectrics on the resonant frequency and radiation field of an equitriangular patch antenna is presented in this paper. The problem is analysed in the spectral domain using the moment method and an electric field integral equation combined with a mathematical approach. However, the dyadic Green's functions corresponding to the proposed structure are separately developed and the Fourier transform of the basis current components are calculated mathematically using ``the reference element" method. Numerical results show that the change in the resonant frequency and the radiation patterns of the antenna is due primarily to a small disturbance of the substrate's nature. Then the effect of the uniaxial anisotropic materials is a significant parameter and most essential on the microstrip antenna characterization.

1. Bhartia, P., K. V. S. Rao, and R. S. Tomar, Millimeter Wave Microstrip and Printed Circuit Antennas, Artech House, , 1991.

2. Pozar, D. M., "Radiation and scattering from a microstrip patch on a uniaxial substrate," IEEE Transactions on Antennas and Propagation, Vol. 35, No. 6, 613-621, Jun. 1987.
doi:10.1109/TAP.1987.1144161 Google Scholar

3. Chew, W. C. and Q. Liu, "Resonance frequency of a rectangular microstrip patch ," IEEE Transactions on Antennas and Propagation, Vol. 36, 1045-1056, 1988.
doi:10.1109/8.7216 Google Scholar

4. Mirshekar-Syahkal, D., "Spectral Domain Method for Microwave Integrated Circuits," John Willey and Sons Inc., 1989. Google Scholar

5. Chen, W., K. F. Lee, and S. Dahele, "Theoretical and experimental studies of the resonant frequencies of the equilateral triangular microstrip antenna," IEEE Transactions on Antennas and Propagation, Vol. 40, No. 10, 1253-1256, 1992.
doi:10.1109/8.182460 Google Scholar

6. Douchet, J. and B. Zwhalen, Calcul Differentiel et Integral: Fonctions Reelles d'une ou de Plusieurs Variables Reelles, 2nd Ed., 140-142, 2006.

7. Wong, K. L., J. S. Row, C. W. Kuo, and K. C. Huang, "Resonance of a rectangular microstrip patch on a uniaxial substrate," IEEE Transactions on Microwave Theory and Techniques, Vol. 41, No. 4, 698-701, Apr. 1993.
doi:10.1109/22.231667 Google Scholar

8. Pozar, D. M. and S. M. Voda, "A rigorous analysis of a microstripline fed patch antenna," IEEE Transactions on Antennas and Propagation, Vol. 35, No. 12, 1343-1350, Dec. 1987.
doi:10.1109/TAP.1987.1144041 Google Scholar

9. Boufrioua, A., "Resistive rectangular patch antenna with uniaxial substrate," Antennas: Parameters, Models and Applications, 163-190, Nova, New York, 2009. Google Scholar

10. Boufrioua, A., "Analysis of a Rectangular Microstrip Antenna on a Uniaxial Substrate," Chapter 2, 27-42, 2011. Google Scholar

11. Gurel, C. S. and E. Yazgan, "New computation of the resonant frequency of a tunable equilateral triangular microstrip patch," IEEE Transactions on Microwave Theory and Techniques, Vol. 48, No. 3, 2000.
doi:10.1109/22.826831 Google Scholar

12. Bouttout, F., F. Benabdelaziz, A. Benghalia, D. Khedrouche, and T. Fortaki, "Uniaxially anisotropic substrate effects on resonance of rectangular microstrip patch antenna," Electronics Letters,, Vol. 35, No. 4, 255-256, Feb. 1999.
doi:10.1049/el:19990026 Google Scholar

Mrs. Linda Djouablia

Dr. Idris Messaoudene

Dr. Abdelmadjid Benghalia