Lasse V Ravaska

59695846, Oct 19, 1999

Jul 2, 1997

8/886990

Guanghua Huang - Hutchinson MN
Lasse Beli Ravaska - Hutchinson MN
Kimmo Antero Kyllonen - Hutchinson MN

ADC Solitra Inc. - Hutchinson MN

H01P 120
H01P 710

333202

A combination notch/bandpass filter uses first and second adjacently-located cavities in the conductive housing to respectively provide a tunable, first-stage notch filter and a second-stage bandpass filter. An opening in a wall provides a passage for energy from the first cavity to the second cavity. In the first cavity, a resonator is located adjacent the opening, along with a notch-filter tuning member having one end arranged opposite the resonator and spaced therefrom by a distance to permit the wide end of a coupler to be suspended therebetween. An elongated portion of the coupler carries filtered energy from the first cavity to the second cavity.

58942505, Apr 13, 1999

Mar 20, 1997

8/821246

Lasse Beli Ravaska - Hutchinson MN
Kimmo Antero Kyllonen - Hutchinson MN
Guanghua Huang - Hutchinson MN
Lenny Russell Hill - Hutchinson MN

ADC Solitra, Inc. - Hutchinson MN

H01P 512
H01P 120

333134

A combined resonator-cavity filter includes a number of cavity structures designed for cooperative arrangement within a housing. The resonator cavities are constructed and arranged to pass energy in an assigned frequency band. The cavities include a first cavity structure having a corresponding cavity volume and constructed to provide a first Q, and a second cavity structure having its corresponding cavity volume and constructed to provide a second Q. The cavity volume corresponding to the second cavity structure is less than the cavity volume corresponding to the first cavity structure. Other aspects are directed to the arrangement and uses of sets of such cavity structures as part of a combined duplexer-receiver having the same housing.