US 11,108,123 B2Granted

Triple-mode dielectric resonator filter, method for manufacturing the same, and band pass filter using dielectric resonator and NRN stub

AssigneeAce Technologies Corporation

InventorsDong Wan Chun, Jae Kwang Yoon

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Abstract

A triple-mode dielectric resonator filter includes: a dielectric resonator positioned in a cavity of a housing and formed perpendicular to a longitudinal direction of the housing; a dielectric support coupled to the dielectric resonator through a bonding process and mounted and fixed by a fixing screw passing through a screw fixing mounting hole in the cavity of the housing and fixed to support the dielectric resonator at a predetermined height; and compensation blocks formed to protrude at regular intervals on a side surface of the dielectric resonator to allow the dielectric resonator to operate in three modes. A band pass filter composed of a dielectric resonator and an NRN stub achieves an improved insertion loss, high compression properties and a stable structure compared to a typical band pass filter using an NRN stub.

Claims22

Dependent claims

A triple-mode dielectric resonator filter, comprising:

a housing having one side thereof open while having a cavity thereinside;
a cover coupled to one side of the housing to seal the cavity;
a dielectric resonator having a screw mounting hole at the center thereof, positioned in the cavity of the housing, and formed perpendicular to a longitudinal direction of the housing;
a dielectric support coupled to the dielectric resonator through a thermosetting bonding process and mounted by a fixing screw passing through the screw mounting hole inside the cavity of the housing and fixed to support the dielectric resonator at a predetermined height;
and
a plurality of compensation blocks formed to protrude at regular intervals on a side surface of the dielectric resonator to allow the dielectric resonator to operate in three modes,
wherein the plurality of compensation blocks for allowing the dielectric resonator to operate in three modes are formed to be paired with each other such that a horizontal cross-section of the dielectric resonator has a symmetric shape,
wherein a plurality of compensation blocks are configured such that compensation blocks adjacent to each other on a side surface of the dielectric resonator are smoothly connected to a curved surface having a cross-section in an arc shape,
wherein a height of the dielectric resonator and a length between the plurality of compensation blocks facing each other based on the horizontal cross-section of the dielectric resonator are adjusted to an optimized state to set resonant frequencies operating in three modes.

6 more elements

Dependencies are inferred from the claim text.