About cookies on this site Our websites require some cookies to function properly (required). In addition, other cookies may be used with your consent to analyze site usage, improve the user experience and for advertising. For more information, please review your options. By visiting our website, you agree to our processing of information as described in IBM’sprivacy statement. To provide a smooth navigation, your cookie preferences will be shared across the IBM web domains listed here.
Conference paper
Branch number and height effects on the multi-branch tri-band monopole antenna resonance
Abstract
The branch number and height effects on tri-band antenna resonance was analyzed. The antenna consisted of a monopole and two or four branches connected circumferentially to the monopole a short distance away from the feed point. Method of moments was used to find the input impedance and genetic algorithm was used for searching the resonating monopole and branch length. The optimal height of the branch was found to be 1.875 cm and increasing the number of branches improved the antenna bandwidth at 1.8 and 2.4 GHz.