Tunable microwave filtering device with dielectric resonator, an

Details Tunable microwave filtering device with dielectric resonator, an Tunable microwave filtering device with dielectric resonator, an

1988-06-06

1989-05-30

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

329116, 329160, 331107D, 331107SL, 3332191, 333235, H01P 1203, H01P 710, H03D 902, H03B

Patent

active

048354988

ABSTRACT:
A tunable, microwave filtering device comprises a microstrip line, a dielectric resonator capable of being coupled to the microstrip line, a coplanar line capable of being coupled to the resonator, an active element, such as a varactor for example, mounted on the coplanar line, the variable impedance of which enables the frequency tuning of the device. The invention can be applied to the making of a tunable microwave frequency discriminator, the making of a microwave oscillator and the frequency stabilization of a tunable oscillator.

REFERENCES:
patent: 4146896 (0000-01-01), Baril et al.
patent: 4511860 (1985-04-01), Bastida et al.
patent: 4514707 (1985-04-01), Dydyk et al.
patent: 4654606 (1987-03-01), Tadachi
patent: 4714906 (1987-12-01), D'Albaret et al.

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