Printed monopole antennas with increased bandwidth and gain for wi-fi applications

In this paper, a method to enhance the performance of printed monopole antennas is presented. The proposed approach consists of placing a metal patch next to the antenna in order to direct the fields in one direction by using the reflection from the metal patch. This topology provides compact antenna solutions with broader bandwidth and higher peak gain suitable for use in portable electronics. The effects of the periodic pattern and the reflection from the metal patches have also been investigated.