Circuit enabling the resonant frequency of a dielectric microwave cavity to be varied

摘要

Circuit enabling the resonant frequency of a dielectric microwave cavity to be varied. This circuit comprises a coupling loop 12 arranged in the vicinity of the cavity 10 and tapping off a portion of the energy established in the latter and a means inserted into this loop and able to vary the reactance of the loop. According to the invention, this means consists of at least one Schottky diode 13, 14 loaded by an element equivalent to a resistor, the value of which is adjustable (for example a transistor 18). Application in telecommunications. IMAGE