Vol. 61

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2016-01-24

A Novel Proximity Fed Gap Coupled Microstrip Patch Array for Wireless Applications

By Jacob Abraham, Thomaskutty Mathew, and Chandroth Aanandan
Progress In Electromagnetics Research C, Vol. 61, 171-178, 2016
doi:10.2528/PIERC15111501

Abstract

Design and development of a novel dual-band microstrip patch array antenna suitable for WLAN and WiMAX applications are presented. The proposed array configuration is obtained by employing two parasitic patches gap coupled to the driven elements of a single layer proximity fed 2x1 microstrip patch array configuration. The proposed dual-band array has the advantages of enhanced bandwidth and gain. The feed patches are excited by proximity feeding method and the parasitic patches are excited by gap-coupling. This microstrip patch array provides resonances at two frequencies of 2.584 GHz (2.412-2.629 GHz) and 3.508 GHz (3.469-3.541 GHz). This novel configuration has a measured gain of 8.51 dBi and 5.8 dBi in lower and upper bands with an impedance bandwidth of 8.16% and 2.05% respectively. Additionally, to enhance the front to back ratio at the upper resonant frequency, a metal plate is placed at the back side of the array antenna. This modified proximity fed gap coupled array provides directional radiation patterns with improved gains. Re-configurability in the form of beam steering is obtained in the modified array configuration by varying the air gap between the ground plane and metal plate. The simulated results are in good agreement with the experimental ones.

Citation


Jacob Abraham, Thomaskutty Mathew, and Chandroth Aanandan, "A Novel Proximity Fed Gap Coupled Microstrip Patch Array for Wireless Applications," Progress In Electromagnetics Research C, Vol. 61, 171-178, 2016.
doi:10.2528/PIERC15111501
http://jpier.org/PIERC/pier.php?paper=15111501

References


    1. Khan, M. U., M. S. Sharawi, and R. Mittra, "Microstrip patch antenna miniaturisation techniques: A review," IET Microwaves, Antennas and Propagation, Vol. 9, No. 9, 913-922, 2015.
    doi:10.1049/iet-map.2014.0602

    2. Lee, K. F. and K. F. Tang, "Microstrip patch antenna - Basic characteristics and some recent advances," Proceedings of the IEEE, Vol. 100, 2169-2180, July 2012.

    3. Chang, T. N. and J. H. Jiang, "Enhance gain and bandwidth of circularly polarized microstrip patch antenna using gap coupled method," Progress In Electromagnetics Research, Vol. 99, 127-139, 2009.
    doi:10.2528/PIER09081010

    4. Deshmukh, A. A. and G. Kumar, "Compact broad band gap coupled shorted square microstrip antennas," Microwave And Optical Technology Letters, Vol. 48, 1261-1265, 2008.

    5. Meshram, M. K. and B. R. Vishvakarma, "Gap-coupled microstrip array antenna for wide-band operation," International Journal of Electronics, Vol. 88, No. 11, 1161-1175, 2001.
    doi:10.1080/00207210110071288

    6. Aanandan, C. K., P. Mohanan, and K. G. Nair, "Broad band gap coupled microstrip antenna," IEEE Transactions On Antennas And Propagation, Vol. 38, No. 10, 1581-1586, 1990.
    doi:10.1109/8.59771

    7. Wei, K., Z. Zhang, and Z. Feng, "New coplanar capacitively coupled feeding method for circularly polarized patch antenna," IEEE Antennas and Propagation Society International Symposium, 3099-3102, Spokane, USA, 2011.

    8. Lin, Y. F., H. M. Chen, S. C. Pan, Y. C. Kao, and C. Y. Lin, "Adjustable axial ratio of single layer circularly polarized patch antenna for portable RFID reader," Electronics Letters, Vol. 45, No. 6, 290-292, 2009.
    doi:10.1049/el.2009.3569

    9. Tu, Z. H., Q. X. Chu, and Q. Y. Zhang, "High gain slot antenna with parasitic patch and windowed metallic substrate," Progress In Electromagnetics Research Letters, Vol. 15, 27-36, 2010.
    doi:10.2528/PIERL10041404

    10. Deshmukh, A. A. and K. P. Ray, "Proximity fed gap-coupled half E shaped microstrip antenna array," Sadhana-Indian Academy of Sciences, Vol. 40, 75-87, 2015.

    11. Lai, H. W., K. M. Mak, and K. F. Chan, "Novel aperture coupled microstrip line feed for circularly patch antenna," Progress In Electromagnetics Research, Vol. 144, 1-9, 2014.
    doi:10.2528/PIER13101803

    12. Majid, H. A., M. K. A. Rahim, M. R. Hamid, and M. F. Ismail, "Frequency reconfigurable microstrip patch slot antenna with directional radiation pattern," Progress In Electromagnetics Research, Vol. 144, 319-328, 2014.
    doi:10.2528/PIER13102901

    13. Costantine, J., Y. Tawk, J. Woodland, N. Flaum, and C. G. Christodouloues, "Reconfigurable antenna system with a movable ground plane for cognitive radio," IET Microwave Antennas and Propagation, Vol. 8, No. 11, 858-863, 2014.
    doi:10.1049/iet-map.2013.0605

    14. Ali, M. T. and M. N. M. Tan, "A novel of reconfigurable planar array (RPAA) with beam steering control," Progress In Electromagnetics Research B, Vol. 20, 125-146, 2010.
    doi:10.2528/PIERB10020710

    15. Sami, B., B. Randa, S. Benkouda, and T. Fortaki, "Full-wave analysis of anisotropic circular microstrip antenna with air gap layer," Progress In Electromagnetics Research M, Vol. 34, 143-151, 2014.

    16. Entschladen, H. and U. Nagel, "Microstrip patch array antenna," Electronics Letters, Vol. 20, 931-933, 1984.
    doi:10.1049/el:19840633