Patent ID: 6987488

Claim:
An apparatus for introducing phases shift into an electric circuit comprising: a piezoelectric transducer arm having a first end and a second end configured to deflect in response to an applied voltage, the second end coupled to a supporter, wherein the piezoelectric transducer has a rectangular cross-section; a microstrip line; a dielectric perturber coupled to the first end of the piezoelectric transducer arm; separated from the microstrip line by a gap, and configured to deflect in response to deflection of the piezoelectric transducer arm; wherein deflection of the dielectric perturber causes a phase shift in an electric current flowing through the microstrip line; wherein the piezoelectric transducer is configured to deflect 0 to 2 mm in response to the applied voltage; and wherein the supporter and the microstrip line overlie a substrate, the dielectric perturber having a higher permitivity than the substrate.