A New Compact FSIW Fed Dielectric Resonator Antenna for Millimeter Wave Band Applications

Abstract A new waveguide feeding scheme of a rectangular DRA based upon the folded substrate integrated waveguide concept is presented. The most important characteristics of this antenna are a good radiation efficiency of above 87% at high frequencies which antenna operates and half transverse size of its feeding in comparison with other waveguide feeding schemes such as SIW and rectangular waveguide. The simulated results show an impedance bandwidth of 6.7% from 25.25 to 27 GHz and a good gain of at least 5 dB for this range.