Huawei Technologies Co., Limited

Bengui Yuan

Qiang Wang

Shuhui Chen

Ling Guo

Xiaofeng Zhang

Zhen Shen

Zhiyu Liu

Jinyan Li

Puke Zhou

Wenqi Ding

Qun Fang

Xiangyu Bao

The present disclosure relates to transverse magnetic wave (TM) mode filters and methods for manufacturing a TM mode filter. One example TM mode filter includes a filter body, a dielectric, and a transition layer, the filter body including a filter cavity and a cover, and having hollow confined space, the dielectric located in the hollow confined space, and the transition layer configured to connect the dielectric and the filter body. A coefficient of thermal expansion (CTE) of the transition layer is between a CTE of the filter body and a CTE of the dielectric.

TM mode filter and method for manufacturing TM mode filter

Embodiments relate to the field of technologies of components of communications devices, and provide a dielectric filter, which resolves a problem that a solid dielectric filter has a difficulty in implementing capacitive coupling. The dielectric filter includes at least two dielectric resonators, where each of the dielectric resonators includes a body made of a solid dielectric material, and an adjusting hole located on a surface of the body. The adjusting hole is a blind hole, configured to adjust a resonance frequency of the dielectric resonator on which the blind hole is located. The bodies of all the dielectric resonators included by the dielectric filter form a body of the dielectric filter.

Filter and transceiver comprising dielectric body resonators having frequency adjusting holes and a negative coupling hole

A dielectric resonator, a dielectric filter using the dielectric resonator, a transceiver, and a base station. The dielectric filter includes a body made of a solid-state dielectric material, where a plurality of indentations are disposed at a first surface of the body and where at least one of a hole or a groove is disposed between adjacent indentations of the plurality of indentations, and a conducting layer, wherein the first surface and other surfaces of the body, surfaces of the plurality of the indentations, and an interior of the at least one of the hole or the groove are covered with the conducting layer.

Dielectric resonator, dielectric filter using dielectric resonator, transceiver, and base station

A dielectric resonator, a dielectric filter, a base station and a method for fabricating the dielectric resonator or the dielectric filter are provided. The dielectric resonator includes: a solid dielectric resonator body, a blind hole located on one side of the solid dielectric resonator body, a metalized layer covering both a surface of the solid dielectric resonator body and a surface of the blind hole, and a demetallized notch located at the metalized layer on the surface of the blind hole. The dielectric resonator provided in the present application can implement tuning of the dielectric resonator, and reduce impact on the resonance frequency of the dielectric resonator after the dielectric resonator is tuned, where the impact caused by that the demetallized notch is covered by a metal material in an assembly process of the dielectric resonator, and signal energy that is leaked from the notch is reduced.

Dielectric resonator having a sealed demetallized notch formed therein, for forming a dielectric filter and a base station therefrom

This application provides a resonator that includes a housing and a cover. A resonant rod, a dielectric block, and an elastic element are disposed in the housing. The resonant rod is in a tubular shape and includes an inner side face, an outer side face, and a first end face. The dielectric block includes a bottom end and a top end, the top end is connected to the cover, a second end face and a boss that protrudes from the second end face are disposed at the bottom end, and the boss is in an annular shape. The boss is embedded in the resonant rod a, or the boss fits around the outside of the resonant rod. The elastic element is connected between the first end face and the second end face or between the top end of the dielectric block and the cover.

Resonator and communications apparatus

A filter and a communications device are disclosed. The filter includes a metal cavity, a metal resonant cavity, and a metal cover covering the metal cavity and the metal resonant cavity. A dielectric waveguide is disposed in the metal cavity, and the dielectric waveguide is electrically connected to the metal cavity. Resonant rod is disposed in the metal resonant cavity. A coupling structure is disposed between the metal cavity and a metal resonant cavity that is neighboring to the metal cavity, the coupling structure includes a communication area between the metal cavity and the metal resonant cavity and a dielectric body that protrudes into the communication area, the dielectric body is connected to the dielectric waveguide, and the coupling structure is coupled to a resonant rod in the metal resonant cavity.

Filter and communications device

Filter and communication device comprising dielectric resonators having frequency adjusting holes and negative coupling holes of greater depth

A transverse magnetic (TM) mode dielectric filter includes an enclosure, a dielectric resonator, a main cover, and an elastic component, where the dielectric resonator is disposed in a resonant cavity of the enclosure; the main cover is secured between the elastic component and an open end of the enclosure; the elastic component includes multiple elastic flaps; the multiple elastic flaps are evenly distributed around an axial direction of the dielectric resonator; one end of each of the elastic flaps is fixedly connected to the main cover, and free ends of the elastic flaps elastically act on a central part of an outer surface of the main cover, to provide an elastic force towards the dielectric resonator. The evenly distributed multiple elastic flaps produce a pressure towards the dielectric resonator. A uniform and stable pressure is produced around the dielectric resonator, to ensure a uniform current density inside the resonant cavity.

Transverse magnetic (TM) mode dielectric filter

The present application provides a dielectric resonator, a dielectric filter, a base station and a method for fabricating the dielectric resonator or the dielectric filter. The dielectric resonator includes: a solid dielectric resonator body, a blind hole located on one side of the solid dielectric resonator body, a metalized layer covering both a surface of the solid dielectric resonator body and a surface of the blind hole, and a demetallized notch located at the metalized layer on the surface of the blind hole. The dielectric resonator provided in the present application can implement tuning of the dielectric resonator, and reduce impact on the resonance frequency of the dielectric resonator after the dielectric resonator is tuned, where the impact caused by that the demetallized notch is covered by a metal material in an assembly process of the dielectric resonator, and signal energy that is leaked from the notch is reduced.

Method of fabricating a dielectric resonator having a sealed demetallized notch formed therein and a dielectric filter formed therefrom

Embodiments of the present disclosure provide a dielectric resonator, a dielectric filter using the dielectric resonator, a transceiver, and a base station, and solve a problem that a loss indicator of an existing dielectric filter cannot meet a filtering requirement of a base station. The dielectric resonator includes a body made of a solid-state dielectric material, where an indentation is disposed on a surface of the body, and the surface of the body and a surface of the indentation are covered with a conducting layer; the dielectric filter includes at least two of the foregoing dielectric resonators. Another type of dielectric filter includes a body made of a solid-state dielectric material, where at least two indentations are disposed on a surface of the body, a hole and/or a groove is disposed between adjacent indentations on the body, and the surface of the body is covered with a conducting layer.

Embodiments relate to the field of technologies of components of communications devices, and provide a dielectric filter, which resolves a problem that a solid dielectric filter has a difficulty in implementing capacitive coupling. The dielectric filter includes at least two dielectric resonators, where each of the dielectric resonators includes a body made of a solid-state dielectric material, and an adjusting hole located on a surface of the body. The adjusting hole is a blind hole, configured to adjust a resonance frequency of the dielectric resonator on which the blind hole is located. The bodies of all the dielectric resonators included by the dielectric filter form a body of the dielectric filter.

Filter and transceiver comprising dielectric body resonators having frequency adjusting holes and negative coupling holes

Dielectric resonator/filter including a metallized dielectric body having a blind hole therein with a demetallized notch that is sealed by a metallized sealing part

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Shanghai, China

Bengui Yuan