volume | PIER Journals

Abstract

A Dual band Microstrip Antenna Arrays (DbMSAA) incorporated with Mushroom Electromagnetic band Gap (MEBG) and modified Minkowski Electromagnetic Band Gap structures to further improve its radiation characteristics is reported in this work. The two different types of EBG structures work like a Band Rejecter (BR), separating the branch of feed line feeding two different groups of patch antenna arrays operating at 2.4 GHz and 5.8 GHz, thus making them operate individually at their particular frequencies, simultaneously. Initially, the possibilities of having a uniform and controlled radiation patterns are quite complicated to achieve due to the single port feeding technique used and developments of grating lobes at the higher band frequency, but, through the incorporation of the EBG structures, the problems could be solved immediately. The antenna's performance is improved where the grating lobes at 5.8 GHz are diminished, and the radiation patterns of the dual band antenna at both frequencies become more symmetrical with increased gain.

1. Masri, T., M. K. A. Rahim, and O. Ayop, "Dual band microstrip array antenna radiation characteristics enhancement via novel band rejection technique using EBG structures," 2008 Asia Pacific Microwave Conference, (APMC 2009), December 2008.

2. Masri, T., M. K. A. Rahim, and M. N. A. Karim, "A novel 2D Minkowski gasket EBG structure for multiband microstrip antenna," European Conference on Antenna and Propagation (EuCAP 2007), Edinburgh, U.K., November 11-16, 2007.

3. Yang, F. and Y. Rahmat-Samii, Electromagnetic Band Gap Structures in Antenna Engineering, Cambridge University Press, 2009.

4. Yang, L., M. Fan, F. Chen, J. She, and Z. Feng, "A novel compact electromagnetic-bandgap (EBG) structure and its application for microwave circuits," IEEE Transaction on Microwave Theory and Techniques, Vol. 53, No. 1, January 2005.

5. Yang, F. and Y. Rahmat-samii, "Microstrip antennas integrated with electromagnetic band-gap (EBG) structures: A low mutual coupling design for array applications," IEEE Transaction on Antennas and Propagation, Vol. 51, No. 10, 2936-2946, 2003.
doi:10.1109/TAP.2003.817983

6. Diaz, R., V. Sanchez, E. Caswell, and A. Miller, "Magnetic loading of artificial magnetic conductors for bandwidth enhancement," IEEE Antennas and Propagation Society International Symposium, Vol. 2, 431-434, 2003.

7. Du, Z. W., K. Gong, J. S. Fu, B. X. Gao, and Z. H. Feng, "A compact planar inverted-F antenna with a PBG-type ground plane for mobile communication," IEEE Transaction on Vehicular Technology, Vol. 52, No. 3, 483-489, 2003.
doi:10.1109/TVT.2003.811526

8. Sievenpiper, D. and J. H. Schauffner, "Textured surface having high electromagnetic impedance in multiple frequency bands,", U.S. Patent 6,483,481, November 19, 2002.

9. Broas, R. F. J., D. F. Sievenpiper, and E. Yablonovitch, "A high-impedance ground plane applied to a cellphone handset geometry," IEEE Transaction on Microwave Theory and Techniques, Vol. 49, No. 7, 1262-1265, 2001.
doi:10.1109/22.932245

10. Pirhadi, A., M. Hakak, and F. Keshmiri, "Using electromagnetic band gap superstrate to enhance the bandwidth of probefed microstrip antenna," Progress In Electromagnetic Research, Vol. 61, 215-230, 2006.
doi:10.2528/PIER06021801

11. Shaban, H. F., H. A. Elmikatay, and A. A. Shaalan, "Study the effects of electromagnetic band-gap (EBG) substrate on two patches microstrip antenna," Progress In Electromagnetic Research B, Vol. 10, 55-74, 2008.
doi:10.2528/PIERB08081901

12. Zhang, L.-J., C.-H. Liang, L. Liang, and L. Chen, "A novel design approach for dual band electromagnetic band gap structure," Progress In Electromagnetic Research M, Vol. 4, 81-91, 2008.
doi:10.2528/PIERM08071107

Prof. Thelaha Masri

Prof. Mohamad Kamal Abd Rahim

Dr. Osman Ayop

Mr. Farid Zubir

Dr. Noor Asmawati Binti Samsuri

Mr. Huda Abdul Majid