Nonlinear response of Ba/sub x/Sr/sub 1 - x/TiO/sub 3/ planar and parallel-plate capacitors to microwave power: comparative study of power handling capability

The power handling capability of tunable microwave devices employing planar and parallel-plate Ba/sub x/Sri/sub 1- x/TiO/sub 3/ film-based capacitors was experimentally measured and analyzed. A microstrip resonator, excited by either harmonic or two-tone microwave signals of elevated power, was selected as an example of tunable test fixture.