A new generation of high-frequency integrated circuits is presented, which is called substrate integrated circuits (SICs). Current state-of-the-art of circuit design and implementation platforms based on this new concept are reviewed and discussed in detail. Different possibilities and numerous advantages of the SICs are shown for microwave, millimeter-wave and optoelectronics applications. Pra...

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