Abstract
In this paper a novel form of the familiar E-shaped patch antenna is presented. In the presented approach, by using the genetic algorithm (GA) based on fuzzy decision-making, some modifications have been implemented to the incorporated slots which lead to even more enhancement in the antenna bandwidth. The MOM (Method of Moment) is employed for analysis at the frequency band of 1.8GHz–2.6GHz by the optimization parameters of supply locations and slot dimensions. In the implemented fuzzy system, inputs are parameters like population, and outputs are parameters like recombination to produce the next generation. Fuzzy inference system (FIS) is used for the control of GA parameters. The design is also optimized by successive iterations of a computer-aided analysis package and experimental modifications. Prototype antenna, resonating at wireless communication frequencies of 1.88 and 2.37 GHz, has been constructed and experimental results are in relatively good agreement with the analysis. Dimensions of the modified slots for bandwidth enhancement, while maintaining good radiation characteristics, have been determined and the obtained antenna bandwidth of 36.7% is larger than that of a corresponding unslotted rectangular microstrip antenna or a conventional E-Shaped patch antenna. Details of the antenna design approach and experimental results are presented and discussed.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
Rahmat-Samii Y., Michielssen E. (1999). Electromagnetic optimization by genetic algorithms. New York, NY, Wiley
Lotfi Neyestanak A.A., Hojjat Kashani F., Barkeshli K. (2005). E-shaped patch antenna design based on genetic algorithm using decision fuzzy rules. IJECE 4(1): 18–24
PDF Documents of fuzzy and PDE toolbox of Matlab 7, http://www.mathworks.com/, 2005.
Makarov S.N. (2002) Antenna and EM modeling with Matlab. John Wiley and Sons Inc, New York, NY
Kumar G., Gupta K.C. (1984). Broad-band microstrip antennas using additional resonators gap-coupled to the radiating edges. IEEE Transaction Antennas and Propagation, AP-32, 1375–1379
Kumar G., Gupta K.C. (1985). Nonradiating edges and four edges gapcoupled multiple resonator broad-band microstip antennas. IEEE Transactions Antennas and Propagation, AP-33, 173–178
Kumar G., Gupta K.C. (1985). Directly coupled multiple resonator wide-band microstrip antenna. IEEE Transactions on Antennas and Propagation, AP-33, 588–593
Virga, K., & Rahmat-Samii, Y. (1995). An enhanced bandwidth integrated dual L antenna for mobile communications systems-design and measurement. IEEE Antennas and Propagation Symposium Diges, Newport Beach,CA, pp. 1120–1123, June 1995.
Huynh T., Lee K.F. (1995). Single-layer single-patch wideband microstrip antenna. Electronic Letters, 31(16): 1310–1312
Lee K.F., Luk K.M., Tong K.F., Yung Y.L., Huynh T. (1996). Experimental study of the rectangular patch with a U-shaped slot. Antennas and Propagation Society International Symposium, AP-S. Digest, 1, 10–13
Herscovici N. (1998). New considerations in the design of microstrip antennas. IEEE Transactions on Antennas and Propagation 46: 807–812
Herscovici N. (1998). A wide-band single-layer patch antenna. IEEE Antennas and Propagation Society International Symposium 2: 1108–1111
Barilese B., Peixeiro C. (1998). Wide-band microstrip patch antenna element. IEEE Antennas and Propagation Society International Symposium 2: 1104–1107
Sze J.-Y., Wong K.-L. (2000). slotted rectangular microstrip antenna for bandwidth enhancement. IEEE Transactions on Antennas and Propagation 48(8): 1149–1152
Van Wyk M.D., Palmer K.D. (2001). Bandwidth enhancement of microstrip patch antennas using coupled lines. Electronics Letters 37(13): 806–807
Yang F. Zhang X.-X., Xiaoning Y., Rahmat-Samii Y. (2001). Wide-band E-shaped patch antennas for wireless communications. IEEE Transactions Antennas and Propagation 49(7): 1094–1100
Yang F., Rahmat-Samii Y. (2000). Wideband dual parallel slot patch antenna (DPSPA) for wireless communications. IEEE Antennas and Propagation Society International Symposium, 2000 3: 1650–1653
Ge, Y., Esselle, K. P., & Bird, T. S. (2004). A broadband E-shaped patch antenna with a microstrip compatible feed. Microwave and Optical Technology Letter, 42(2).
Ooi1, B. L., & Shen1, Q. (2000). A novel E-shaped broadband microstrip patch antenna. Microwave and Optical Technology Letter, 27(5)
Teng, P.-L., Tang, C.-L., & Wong, K.-L. (2001). A broadband planar patch antenna fed by a short probe feed. Microwave Conference, 2001. APMC 2001. 2001 Asia-Pacific, vol.3, pp.1243 −1246, 3-6 Dec. 2001.
Bahl I.J., Bhartia P. (1980) Microstrip antennas. Artech House, Dedham, MA
Ooi, B. L., Leong, M. S., & Shen, Q. (2001). A novel equivalent circuit for E-shaped slot patch antenna. IEEE Antennas and Propagation Society International Symposium, 2001, 4, 482–485.
Zhang X.-X., Yang F. (1998). The study of slit cut on the microstrip antenna and its applications. Microwave Optical Technology Letter 18(4): 297–300
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Lotfi Neyestanak, A.A., Hojjat Kashani, F. & Barkeshli, K. W-shaped enhanced-bandwidth patch antenna for wireless communication. Wireless Pers Commun 43, 1257–1265 (2007). https://doi.org/10.1007/s11277-007-9299-7
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11277-007-9299-7