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: A filter including at least two resonator through-holes defining apertures in the top surface surrounded by respective plates which in combination with associated through-holes define primary and secondary shunt zeros providing low ripple and high rejection adjacent the bandpass. In one embodiment, the through-hole of the primary shunt zero is coupled directly to an input/output pad, while the through-hole of the secondary shunt zero is indirectly coupled to the input/output pad via a coupling bar extending between the input/output pad and the secondary shunt zero. In another embodiment, the secondary shunt zero may be coupled directly to the input/output pad. In a further embodiment, additional resonator through-holes in combination with associated plates define additional shunt zeros coupled directly or indirectly to the input/output pad.

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: A filter including at least two resonator through-holes defining apertures in the top surface surrounded by respective plates which in combination with associated through-holes define primary and secondary shunt zeros providing low ripple and high rejection adjacent the bandpass. In one embodiment, the through-hole of the primary shunt zero is coupled directly to an input/output pad, while the through-hole of the secondary shunt zero is indirectly coupled to the input/output pad via a coupling bar extending between the input/output pad and the secondary shunt zero. In another embodiment, the secondary shunt zero may be coupled directly to the input/output pad. In a further embodiment, additional resonator through-holes in combination with associated plates define additional shunt zeros coupled directly or indirectly to the input/output pad.

Abstract: A filter including at least two resonator through-holes defining apertures in the top surface surrounded by respective plates which in combination with the through-holes associated therewith define primary and secondary shunt zeros adapted to provide low ripple and high rejection adjacent the bandpass. In the embodiment shown, the through-hole of the primary shunt zero is directly capacitively or inductively coupled to an input/output pad, while the through-hole of the secondary shunt zero is indirectly capacitively or inductively coupled to the input/output pad via a coupling bar extending between the input/output pad and the secondary shunt zero. In another embodiment, the secondary shunt zero may be capacitively or inductively coupled directly to the input/output pad.