Dielectric resonator filter assemblies and methods
OwnerRaafat R. Mansour, Rui Zhanginventors
Life of this patent
Estimating the term…
Abstract
A unitary resonator assembly for use in dielectric resonator filters and multiplexers. The unitary resonator assembly comprises a plurality of resonators joined by bridges, where the resonators and bridges are all constructed from a single piece of a dielectric material. The unitary resonator assemblies may be used in conjunction with unitary mounting structures that support a unitary resonator assembly in a filter or multiplexer. Also disclosed are 2-pole, 4-pole, and triplet filters implementing a unitary resonator assembly in conjunction with a unitary mounting structure, and a diplexer implementing a unitary resonator assembly in conjunction with a unitary mounting structure.
Claims20
A unitary resonator assembly and mounting structure for use in one of a dielectric resonator filter and a dielectric resonator multiplexer, the one of dielectric resonator filter and dielectric resonator multiplexer having a metallic enclosure, said unitary resonator assembly and mounting structure comprising:
- (a) a first dielectric resonator;
- (b) a second dielectric resonator;
- (c) at least one bridge for connecting the first and second dielectric resonators;
- (d) the first dielectric resonator, the second dielectric resonator and the at least one bridge being integrally formed within a single piece of dielectric substrate;
- and
- (e) said mounting structure for mounting the unitary resonator assembly within the metallic enclosure, the mounting structure defining an assembly support indentation and a spacing border, and being formed from a dielectric material having a low dielectric constant, such that the unitary resonator assembly is insulated from the metallic enclosure when mounted in the mounting structure.
A dielectric resonator filter comprising a metallic enclosure, a unitary resonator assembly and mounting structure, said unitary resonator assembly and mounting structure comprising:
- (a) a first dielectric resonator;
- (b) a second dielectric resonator;
- (c) at least one bridge for connecting the first and second dielectric resonators;
- (d) the first dielectric resonator, the second dielectric resonator and the at least one bridge being integrally formed within a single piece of dielectric substrate;
- and
- (e)said mounting structure for mounting the unitary resonator assembly within the metallic enclosure, the mounting structure defining an assembly support indentation and a spacing border, and being formed from a dielectric material having a low dielectric constant, such that the unitary resonator assembly is insulated from the metallic enclosure when mounted in the mounting structure.
A triplet dielectric resonator filter comprising a unitary resonator assembly, said unitary resonator assembly comprising:
- (a) a first dielectric resonator;
- (b) a second dielectric resonator;
- (c) at least one bridge for connecting the first and second dielectric resonators;
- (d) the first dielectric resonator, the second dielectric resonator and the at least one bridge being integrally formed within a single piece of dielectric substrate;
- and
- (e) a conductor strip positioned on the surface of the unitary resonator assembly for negative cross coupling.
A dielectric resonator multiplexer comprising a metallic enclosure and a unitary resonator assembly mounted in a mounting structure, said unitary resonator assembly comprising:
- (a) a first dielectric resonator;
- (b) a second dielectric resonator;
- (c) at least one bridge for connecting the first and second dielectric resonators;
- (d) the first dielectric resonator, the second dielectric resonator and the at least one bridge being integrally formed within a single piece of dielectric substrate;
- and
- (e) said mounting structure for mounting the unitary resonator assembly within the metallic enclosure, the mounting structure defining an assembly support indentation and a spacing border, and being formed from a dielectric material having a low dielectric constant, such that the unitary resonator assembly is insulated from the metallic enclosure when mounted in the mounting structure.
A method of manufacturing a unitary resonator assembly and mounting structure for use in one of a dielectric resonator filter and a dielectric resonator multiplexer having a metallic enclosure, said method comprising:
- (a) providing a first dielectric material;
- (b)forming a unitary resonator assembly by integrally shaping in the first dielectric material a first dielectric resonator, a second dielectric resonator, and at least one bridge for connecting the first and second dielectric resonators;
- and
- (c) from a second dielectric material having a low dielectric constant, forming a mounting structure by defining an assembly support indentation and a spacing border, such that the unitary resonator assembly is insulated from the metallic enclosure when mounted in the mounting structure.
Dependencies are inferred from the claim text.