Patent ID: 7449893
Filing Date: 2008-11-11
Classification: G01R,H01P

Abstract:
1. A harmonic rejection load pull tuner comprising a test port and an idle port and a slotted airline (slabline) connecting both ports, said tuner uses two or more open conductive resonant stubs, of which said conductive stubs each one is mounted and fixed inside a conductive resonant cavity using low loss dielectric washers and is quarter lambda resonant at a harmonic frequency (2Fo or 3Fo) of a fundamental frequency Fo, said resonant stubs are positioned vertically relative to the slabline and make galvanic contact with the central conductor of the slabline and slide along the slabline, said tuner providing for an additional resonant pre-matching module to be inserted between the resonant stubs and the test port of said tuner.