TM mode dielectric resonator including a resonant dielectric rod soldered to a fixing base within a housing baseplate, for forming a filter and a communications device

A filter, comprising:

• a transverse magnetic (TM) mode dielectric resonator, the TM mode dielectric resonator comprising
• a housing with an opening at a top of the housing, wherein a cover is disposed on the top of the housing;
• a cavity body enclosed by the cover and the housing, wherein an inner wall of the cavity body is electrically conductive;
• a resonant dielectric rod disposed inside the cavity body, wherein a cavity is disposed inside the resonant dielectric rod;
• a tuning part disposed on the cover, wherein one end of the tuning part extends into the cavity and can move up and down through the cavity of the resonant dielectric rod, wherein the resonant dielectric rod is soldered with the cover, wherein the tuning part comprises a screw rod in threaded fitting with a nut, and wherein a part of the cover soldered with the resonant dielectric rod is made of elastic material;
• and
• a fixing base built into a lower surface of a baseplate of the housing, wherein the resonant dielectric rod passes through the baseplate and is soldered with an upper surface of the fixing base, wherein the fixing base is made of insulating elastic material and the upper surface of the fixing base is covered with a conductive layer.

A communications device, comprising:

• a filter having a transverse magnetic (TM) mode dielectric resonator, the TM mode dielectric resonator comprising
• a housing with an opening at a top of the housing, wherein a cover is disposed on the top of the housing;
• a cavity body enclosed by the cover and the housing, wherein an inner wall of the cavity body is electrically conductive;
• a resonant dielectric rod disposed inside the cavity body, wherein a cavity is disposed inside the resonant dielectric rod;
• a tuning part disposed on the cover, wherein one end of the tuning part extends into the cavity and can move up and down through the cavity of the resonant dielectric rod, wherein the resonant dielectric rod is soldered with the cover, wherein the tuning part comprises a screw rod in threaded fitting with a nut, and wherein a part of the cover soldered with the resonant dielectric rod is made of elastic material;
• and
• a fixing base built into a lower surface of a baseplate of the housing, wherein the resonant dielectric rod passes through the baseplate and is soldered with an upper surface of the fixing base, wherein the fixing base is made of insulating elastic material and the upper surface of the fixing base is covered with a conductive layer.