AbstractIn this paper, CPW-fed slot antennas using
loading metallic strips and a widened tuning stub on a finite size
reflector that prevents the back radiation and provides the unidirectional
radiation are investigated. The dependence of return
losses and radiation patterns on the CPW-fed slot to finite
reflector size spacing is presented. The IE3D is used for
evaluating the antenna characteristics that are divided into two
cases: the first case with different reflector sizes and the second
case with different reflector distances. The proposed antennas
can be used in GSM1800, GSM1900, PCS, IMT-2000 and
WLAN applications.