Use of defected ground structure (DGS) to reduce the size of patch antenna is presented in this paper. In order to get a dipole like radiation pattern for some specific application a dumbbell shaped DGS is used in the common ground plane of back to back combined single fed proximity coupled antenna. A size reduction of about 60% is achieved. Parametric analysis has been done to see the resonance behavior of the antenna with DGS.
nullA. Arya, A. Patnaik and M. Kartikeyan, "Back to Back Combined Single Feed Proximity Coupled Antenna with Dumbbell Shaped DGS," Journal of Electromagnetic Analysis and Applications, Vol. 3 No. 2, 2011, pp. 43-46. doi: 10.4236/jemaa.2011.32008.
[1] R. Garg, P. Bhartia, I. Bahl and A. Ittipiboon, “Microstrip Antenna Design Handbook,” Artech House, London, 1995.
[2] P. Salon, M. Keskilammi and M. Kivikoski, “Single Feed Dual Band Planer Inverted-F Antenna with U-Shaped Slot,” IEEE Transactions on Antenna and Propagation, Vol. 48, No. 8, 2000, pp. 1262-1264. doi:10.1109/8.884498
[3] D.Nashhat, H. Elsadek and H. Ghali, “Dual-Band Reduced Size PIFA Antenna with U-Slot for Bluetooth and WLAN Applications,” Proceedings of IEEE Antennas Propagation International Symposium, Columbus, Vol. 2, 22-27 June 2003, pp. 962-965. doi. 10.1109/APS.2003.1219395
[4] H. Liu, X. Sun and J. Mao, “Harmonic Suppression with Photonic Bandgap and Defected Ground Structure for a Microstrip Patch Antenna,” IEEE Microwave and Wireless Component Letters, Vol. 15, No. 2, February 2005, pp. 55-56. doi:10.1109/LMWC.2004.842809
[5] D. Guha, M. Biswas and Y. M. M. Antar, “Microstrip Patch Antenna with Defected Ground Structure for Cross Polarization Suppression,” IEEE Antenna and Wireless Propagation Letter, Vol. 4, No. 1, 2005, pp. 455-458. doi:10.1109/LAWP.2005.860211
[6] M. Salehi, A. Motevasselian, A. Tavakoli and T. Heidari, “Mutual Coupling Reduction of Microstrip Antenna using Defected Ground Structure,” IEEE Singapore International Conference on Communication System, Singapore, 2006, pp. 1-5. doi:10.1109/ICCS.2006.301375
[7] J. Guterman, Y. R. Samii, A. A. Moreira and C. Peixeiro, “Quasi-Omni Directional Dual-band Back-to-Back E- shaped Patch Antenna for Laptop Applications,” Electronics Letters, Vol. 42, No. 15, 2006, pp. 845-847. doi:10.1049/el:20061799
[8] H. Iwasaki, “A Back-to-Back Rectangular-Patch Antenna Fed by a CPW,” IEEE Transactions on Antenna Propagation, Vol. 46, No. 10, October 1998, pp. 1527-1530. doi:10.1109/8.725285
[9] D. Ahn, J. S. Park, C. S. Kim, J. Kim, Y. Qian and T. Itoh, “A Design of the Low-Pass Filter Using The Novel Micro strip Defected Ground Structure,” IEEE Transactions on Microwave Theory and Technology, Vol. 49, No. 1, 2001, pp. 86-91. doi:10.1109/22.899965