Abstract: We have proposed a method to focus an ultrasonic beam transmitted from piezoelectric micromachined ultrasonic transducer (pMUT) array based on the principle of phase-type Fresnel Zone Plate ...

Abstract: A single layer substrate integrated waveguide (SIW) antennas/array for high speed 60 GHz communications, are presented. SIW based single antenna element and then two 1× 4 array are designed.