Dielectric filter, communication equipment, method for preparing dielectric block and method for preparing dielectric filter

A technology of dielectric filter and communication equipment, applied in the field of communication, can solve the problem of low accuracy of transmission zero point debugging
CN111384531AInactive Publication Date: 2020-07-07ANHUI TATFOOK TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
ANHUI TATFOOK TECH CO LTD
Publication Date
2020-07-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a dielectric filter, communication equipment, a method for preparing a dielectric block and a method for preparing the dielectric filter. The dielectric filter comprises: a dielectric block which forms at least two resonant cavities, wherein the at least two resonant cavities are connected; at least a first coupling hole and a second coupling hole, wherein the first coupling hole is arranged on the first surface of the dielectric block, the second coupling hole is arranged on the second surface of the dielectric block, and the first surface and the second surface are arranged oppositely; and a metal layer which covers the surface of the dielectric block, the surface of the first coupling hole and the surface of the second coupling hole, wherein materials of the dielectric filter at least comprise magnesium oxide, calcium oxide, titanium dioxide and zinc oxide. In this way, the accuracy of debugging the transmission zero point can be improved; and the dielectricconstant is low, the loss is low, the temperature coefficient is close to zero, and the dielectric property of the dielectric filter can be improved.
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Description

technical field

[0001] The present application relates to the field of communication technology, in particular to a dielectric filter applied to a 5G communication system, a communication device, a method for preparing a dielectric block and a dielectric filter. Background technique

[0002] In the mobile communication system, the required signal is modulated to form a modulated signal, which is carried on a high-frequency carrier signal, transmitted to the air through the transmitting antenna, and the signal in the air is received through the receiving antenna. Among the signals received by the receiving antenna, not only Include the desired signal, but also include other frequency harmonics, noise signals. For the signal received by the receiving antenna, it is necessary to use a dielectric filter to filter out unnecessary harmonics and noise signals.

[0003] With the rapid development of communication technology, especially the arrival of the 5G communication era, more ...

Claims

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