volume | PIER Journals

Abstract

This work focuses on microstrip patch antennas for the 77 GHz millimeter band. For some combinations of the parameters microstrip width, free wavelength and substrate permittivity, impedance matching via inset fed is found to be non applicable. The current distribution of the desired TM₁₀ mode is partially disturbed. Gap coupled parasitic microstrips are analyzed in order to match the feeding impedance to the feeding microstrip while improving the bandwidth in these particular cases.

1. Song, Q. and X.-X. Zhang, "A study on wideband gap-coupled microstrip antenna arrays," IEEE Transactions on Antennas and Propagation, Vol. 43, No. 3, 313-317, 1995.
doi:10.1109/8.372003

2. Lee, C. S. and V. Nalbandian, "Impedance matching of a dual-frequency microstrip antenna with an air gap," IEEE Transactions on Antennas and Propagation, Vol. 41, No. 5, 680-682, 1993.
doi:10.1109/8.222288

3. Sze, J.-Y. and K.-L. Wong, "Slotted rectangular microstrip antenna for bandwidth enhancement," IEEE Transactions on Antennas and Propagation, Vol. 48, No. 8, 1149-1152, 2000.
doi:10.1109/8.884481

4. Maci, S., G. B. Gentili, P. Piazzesi, and C. Salvador, "Dual-band slot-loaded patch antenna," IEE Proceedings --- Microwaves, Antennas and Propagation, Vol. 142, No. 3, 225-232, 1995.
doi:10.1049/ip-map:19951932

5. Chai, W.-W., X.-J. Zhang, and S.-G. Liu, "Wideband microstrip antenna array using U-slot," PIERS Online, Vol. 3, No. 7, 1085-1088, 2007.
doi:10.2529/PIERS060906221340

6. Kumar, G., Broadband Microstrip Antennas, Artech House, Boston Mass. U. A., 2003.

7. Ray, K. P., S. Ghosh, and K. Nirmala, "Compact broadband gap-coupled microstrip antennas," IEEE Antennas and Propagation Society International Symposium 2006, No. 9-14, 3719-3722, 2006.
doi:10.1109/APS.2006.1711430

8. Ramesh, M. and YIP KB, "Design formula for inset fed microstrip patch antenna," Journal of Microwaves and Optoelectronics, Vol. 3, No. 6, 5-10, 2003.

9. Basilio , L. I., M. A. Khayat, J. T. Williams, et al. "The dependence of the input impedance on feed position of probe and microstrip line-fed patch antennas," IEEE Transactions on Antennas and Propagation, Vol. 49, No. 1, 45-47, 2001.
doi:10.1109/8.910528

10. Hu, Y., D. R. Jackson, J. T. Williams, S. A. Long, and K. V. Rajan, "Characterization of the input impedance of the inset-fed rectangular microstrip antenna," IEEE Transactions on Antennas and Propagation, Vol. 56, No. 10, 3314-3318, 2008.
doi:10.1109/TAP.2008.929532

Mr. Florian D. L. Peters

Dr. Serioja Ovidiu Tatu

Professor Tayeb Denidni