Abstract: An RF filter assembly comprising two filters. In one embodiment, the RF filter assembly comprises a core of dielectric material including a plurality of through-holes and a surface-layer pattern of conductive areas on a top surface of the core that define a first RF filter and a second RF low pass filter is defined, and extends between respective conductive input/output electrodes, on a wall that protrudes outwardly and upwardly from a top surface of the RF filter assembly.

Abstract: A duplex filter includes a block of dielectric material with top, bottom, and side surfaces and first and second spaced-apart sets of through-holes. A pair of outside walls and a center wall extend outwardly from the top surface. A pattern of metallized areas is defined on the top surface of the block including first and second electrodes that extend on the pair of outside walls respectively and third and fourth electrode antennae that extend on the center wall. The block may be two separate blocks coupled together to form an interior layer of metallization separating the first and second sets of through-holes and the center wall separates respective transmit and receive portions of the pattern of metallized areas.

Abstract: An electrical signal filter defined by a block of dielectric material with a top surface, a bottom surface, side surfaces, and through-holes extending between the top and bottom surfaces. In one embodiment, first and second walls protrude outwardly from the top surface and extend the length of first and second opposed longitudinally extending side surfaces. A surface-layer pattern of metallized and unmetallized areas is defined on selected surfaces of the block including an area of metallization that covers the top surface. In one embodiment, first and second surface-layer input/output electrodes are defined by first and second respective isolated strips of conductive material that extend from the top surface of the block and onto the first and second walls respectively.

Abstract: A duplex filter includes a block of dielectric material with top, bottom, and side surfaces and first and second spaced-apart sets of through-holes. A pair of outside walls and a center wall extend outwardly from the top surface. A pattern of metallized areas is defined on the top surface of the block including first and second electrodes that extend on the pair of outside walls respectively and third and fourth electrode antennae that extend on the center wall. The block may be two separate blocks coupled together to form an interior layer of metallization separating the first and second sets of through-holes and the center wall separates respective transmit and receive portions of the pattern of metallized areas.

Abstract: An RF filter assembly comprising two filters. In one embodiment, the RF filter assembly comprises a core of dielectric material including a plurality of through-holes and a surface-layer pattern of conductive areas on a top surface of the core that define a first RF filter and a second RF low pass filter is defined, and extends between respective conductive input/output electrodes, on a wall that protrudes outwardly and upwardly from a top surface of the RF filter assembly.

Abstract: An electrical signal filter defined by a block of dielectric material with a top surface, a bottom surface, side surfaces, and through-holes extending between the top and bottom surfaces. In one embodiment, first and second walls protrude outwardly from the top surface and extend the length of first and second opposed longitudinally extending side surfaces. A surface-layer pattern of metallized and unmetallized areas is defined on selected surfaces of the block including an area of metallization that covers the top surface. In one embodiment, first and second surface-layer input/output electrodes are defined by first and second respective isolated strips of conductive material that extend from the top surface of the block and onto the first and second walls respectively.

Abstract: A duplex filter includes a core of dielectric material with top, bottom, and side surfaces, and first and second spaced-apart sets of through-holes extending therethrough. A wall extends outwardly from the top surface to define a peripheral rim and cavity. A pattern of metallized and unmetallized areas are defined on selected core surfaces including strips of metallization on the top surface that extend onto the wall and the peripheral rim thereof to define respective transmit, receive, and antenna connection posts. In one embodiment, the core is made from two separate blocks which have been coupled together to define an interior metallized layer which separates the first and second sets of through-holes and an exterior wall on the top surface separates the respective transmit and receive conductive patterns thereon.

Abstract: An RF filter assembly comprising a monoblock of dielectric material defining a first RF filter and a lid of dielectric material defining a second RF filter. In one embodiment, the monoblock defines a peripheral wall of dielectric material extending upwardly from a top surface thereof and first and second posts of dielectric material also extending upwardly from the top surface of the monoblock including regions of metallization thereon defining respective conductive input/output pads. The lid is seated against the top of the wall of the monoblock in a relationship spaced from the top surface of the monoblock and defines at least one region of metallization on one of the surfaces thereof defining a filter and a conductive input/output pad in coupling relationship with the input/output pad defined on one of the first and second posts on the monoblock.

Abstract: An electrical signal filter defined by a block of dielectric material with a top surface, a bottom surface, side surfaces, and through-holes extending between the top and bottom surfaces. In one embodiment, a plurality of walls extend outwardly from the top surface to define a peripheral rim and filter cavity. A pattern of metallized and unmetallized areas is defined on selected surfaces of the block including an area of metallization that covers at least a portion of the top surface and at least one of the walls to define at least one input/output electrode on the wall. In one embodiment, a pair of input/output electrodes are formed on a pair of posts defined on one of the walls and the filter is adapted for mounting to a printed circuit board with the rim of the walls against the board and the posts coupled to respective input and output pads on the board.

Abstract: A ceramic monoblock filter incorporating a top face input/output port metallization pattern defining an input/output transmission line, a power load distribution bar, and a ground plate. The transmission line, power load distribution bar, and ground plate are all positioned and oriented relative to each other and two of the resonators defining the filter to define load splitting capacitors providing increased power load handling characteristics.

Abstract: A duplex filter includes a core of dielectric material with top, bottom, and side surfaces, and first and second spaced-apart sets of through-holes extending therethrough. A wall extends outwardly from the top surface to define a peripheral rim and cavity. A pattern of metallized and unmetallized areas are defined on selected core surfaces including strips of metallization on the top surface that extend onto the wall and the peripheral rim thereof to define respective transmit, receive, and antenna connection posts. In one embodiment, the core is made from two separate blocks which have been coupled together to define an interior metallized layer which separates the first and second sets of through-holes and an exterior wall on the top surface separates the respective transmit and receive conductive patterns thereon.

Abstract: An RF filter assembly comprising a monoblock of dielectric material defining a first RF filter and a lid of dielectric material defining a second RF filter. In one embodiment, the monoblock defines a peripheral wall of dielectric material extending upwardly from a top surface thereof and first and second posts of dielectric material also extending upwardly from the top surface of the monoblock including regions of metallization thereon defining respective conductive input/output pads. The lid is seated against the top of the wall of the monoblock in a relationship spaced from the top surface of the monoblock and defines at least one region of metallization on one of the surfaces thereof defining a filter and a conductive input/output pad in coupling relationship with the input/output pad defined on one of the first and second posts on the monoblock.

Abstract: An RF signal filter/resonator includes a core of dielectric material having top, bottom, and side surfaces. At least one through-hole extends through the core. In one embodiment, the core defines first and second alignment/coupling elements formed on the core for aligning and coupling the filter on and to another coupling element or structure such as a printed circuit board. In one embodiment, the alignment/coupling elements are first and second spaced-apart tabs of different configuration which protrude outwardly from one of the side surfaces, are adapted to be fitted in complementarily configured slots in the printed circuit board, and define respective RF signal input/output pads. In another embodiment, the tabs protrude outwardly from the top surface of the core.

Abstract: An electrical signal filter defined by a block of dielectric material with a top surface, a bottom surface, side surfaces, and through-holes extending between the top and bottom surfaces. In one embodiment, a plurality of walls extend outwardly from the top surface to define a peripheral rim and filter cavity. A pattern of metallized and unmetallized areas is defined on selected surfaces of the block including an area of metallization that covers at least a portion of the top surface and at least one of the walls to define at least one input/output electrode on the wall. In one embodiment, a pair of input/output electrodes are formed on a pair of posts defined on one of the walls and the filter is adapted for mounting to a printed circuit board with the rim of the walls against the board and the posts coupled to respective input and output pads on the board.

Abstract: A ceramic monoblock filter incorporating a top face input/output port metallization pattern defining an input/output transmission line, a power load distribution bar, and a ground plate. The transmission line, power load distribution bar, and ground plate are all positioned and oriented relative to each other and two of the resonators defining the filter to define load splitting capacitors providing increased power load handling characteristics.