A novel dual-band and dual-polarized slot antenna for WLAN applications

A slot antenna for dual-band and dual polarization with good port-to-port isolation is presented. By means of tuning the size of I -shaped mental in the aperture, the proposed antenna operates in two different frequencies for WLAN. Using two simple dual-layered feedings, dual polarized radiation can be achieved. The proposed antenna shows good port isolation less than -20dB for dual linear polarization over its operating bands. The prototype was fabricated and measured where the experiment results had a good agreement with the simulation.