Patent ID: 6424241
Filing Date: 2002-07-23
Classification: H01P,H03B,H05K

Abstract:
A fine tuning apparatus for a resonator, the resonator having a resonant frequency, the apparatus comprising:(a) a metal strip located on a dielectric substrate, the metal strip having a first and a second edge; (b) a primary cut that extends into the metal strip between the first and second edges, the primary cut having an end; (c) a plurality of cavities that are located in the metal strip adjacent the end of the primary cut; (d) a plurality of shorting lines located between each of the cavities; and (e) an elongated slot cut into the metal strip parallel to the primary cut, the slot located between the cavities and the first edge, the slot changing the resonant frequency of the resonator in fine increments in proportion to the length of the slot.