PHASE SHIFTER FOR SELECTING SCOPES OF PHASE SHIFT TRANSITION

摘要

PURPOSE: A phase shifter for selecting scopes of phase shift transition is provided to determine a transition scope of a phase by using dielectrics with different dielectric constants a rotary shaft and a rotary shaft for rotating selectively the dielectrics. CONSTITUTION: A signal inputted from an input connector(201) is outputted to an output connector(203) through a line conductor(202). A phase of the signal is shifted as much as a predetermined value by dielectrics(205a,205b,206a,206b). The first dielectric plate(205) is formed with the first dielectric(205a) and the second dielectric(205b). A screw thread is formed on an inner circumference of the first dielectric plate(205). The first dielectric(205a) and the second dielectric(205b) are adhered to the first rotary metal plate(204). A rotary disc(208) is combined with the screw thread of the first dielectric plate(205). The second dielectric plate(206) is formed with the third dielectric(206a) and the fourth dielectric(206b). The third dielectric(206a) and the fourth dielectric(206b) are adhered to the first rotary metal plate(204). A screw thread is formed on an inner circumference of the second dielectric plate(206). The rotary disc(208) is formed at a lower end portion of a rotary shaft(209).