![]() ![]() High speed, broadband and high capacity in or outdoor wireless local area networks (WLAN) are becoming more and more predominant today, its interesting to become familiar with some of the aspects of wireless design that must be faced and overcome. The first mathematical analyze of a wide variety of microstrip patch shapes was published in 1977 by Bahl and Bhartia, which he used the modal-expansion technique to analyze to rectangular, circular, semicircular and triangular patch shapes. The radiation pattern of a circular patch was analyzed and measurements reported by Carver. Mathematical modeling of the basic microstrip radiator was initially carried out by the application of transmission-line analogies to simple rectangular patch fed at the center of radiating wall.
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