Compact reconfigurable dual frequency microstrip patch antenna for 3G and 4G mobile communication technologies

We propose in this article, a novel compact reconfigurable patch antenna with frequency diversity. This antenna can be tuned by changing the switching mode of two PIN diodes from the ON-ON state to OFF-OFF state to switch it over two different mobile communication technologies, namely 3G and 4G. The antenna has a simple geometry and a small structure, its dimensions are 45 × 38 × 1.5 mm3 and it is printed on an FR4 substrate with a thickness of 1.5 mm. The prototype of this antenna has been fabricated and tested. The measurement results confirmed the simulation predictions in terms of frequency diversity performances. © 2013 Wiley Periodicals, Inc.