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Duplexer and communication system with the duplexer

A duplexer and dielectric resonator technology, which is applied in the direction of resonators, waveguide devices, impedance networks, etc., can solve the problems of difficult to guarantee accuracy, difficult processing, complex shape of ceramic body, etc., and achieve low design and processing difficulty, simplify The difficulty of processing and the effect of avoiding the difficulty of molding and manufacturing

Active Publication Date: 2016-08-17
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

(3) Cut out a rectangular cut corner, but this coupling method is not easy to process
(4) Groove in the center of the dielectric resonator, and this coupling method is also not easy to process
However, in the prior art, the shape of the ceramic body in this type of filter is complex, difficult to process, and difficult to mass-produce, especially the accuracy of cutting edges on the ceramic body is difficult to guarantee, and the production cost is high.

Method used

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  • Duplexer and communication system with the duplexer
  • Duplexer and communication system with the duplexer
  • Duplexer and communication system with the duplexer

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Effect test

Embodiment 2

[0068]Different from only one cavity in the duplexer in Embodiment 1, in this embodiment, there are at least two cavities, each of which is provided with a dielectric resonator, and at least one of the cavities is connected to an input port, wherein at least one other cavity is provided with an output port, and a coaxial connecting rod is connected between the cavities, and the coaxial connecting rod can be used to match the multimode resonant cavity.

[0069] Such as Figure 6 and Figure 7 As shown, in this embodiment, two cavities are provided as an example, and the two cavities are the first cavity 11a and the second cavity 11b which are adjacently arranged respectively; the first cavity 11a and the second cavity 11b can be on the same body. There are two dielectric resonators, respectively the first dielectric resonator 18a and the second dielectric resonator 18b; the first dielectric resonator 18a is arranged in the first cavity 11a, and the second dielectric resonator...

Embodiment 3

[0083] Different from only one cavity in the duplexer in Embodiment 1, in this embodiment, two cavities are provided, each cavity is provided with a dielectric resonator, and one of the cavities is connected to an input port, The other cavity is provided with an output port, and a coaxial connecting rod is connected between the cavities, and the end of the coaxial connecting rod extending into the cavity is connected with a coupling plate opposite to the dielectric resonator, and the coaxial connection The rod includes an input and output end connected to the cavity 1, and also includes a short circuit end or / and a connection port.

[0084] In this example, if Figure 11 and Figure 12 As shown, the two cavities are respectively a first cavity 24a and a second cavity 24b which are adjacent to each other; the first cavity 24a and the second cavity 24b may be located on the same body. There are two dielectric resonators, respectively the first dielectric resonator 27a and the ...

Embodiment 4

[0095] Different from only one cavity 1 in the duplexer in Embodiment 1, in this embodiment, as Figures 17-19 As shown, there are four cavities 1: a first cavity 37a, a second cavity 37b, a third cavity 37c and a fourth cavity 37d arranged in two rows and two columns respectively. There are four dielectric resonators, respectively the first dielectric resonator 40a, the second dielectric resonator 40b, the third dielectric resonator 40c and the fourth dielectric resonator 40d; the first dielectric resonator 40a is arranged in the first cavity 37a, the second dielectric resonator 40b is arranged in the second cavity 37b, the third dielectric resonator 40c is arranged in the third cavity 37c, and the fourth dielectric resonator 40d is arranged in the fourth cavity 37d; the input port Connected to the first cavity 37a, the output port is connected to the fourth cavity 37d; a first T-shaped coaxial connecting rod 49 is connected between the first cavity 37a and the second cavity ...

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Abstract

The invention is applicable to the technical field of communication equipment, and discloses a duplexer and a communication system with the duplexer. The duplexer includes a body, the body is provided with an input port and an output port, the body is provided with a cavity, the cavity is provided with a dielectric resonator, the input port is connected with an input coupling plate opposite to the dielectric resonator, and the output The port is connected with an output coupling plate opposite to the dielectric resonator, the body is connected with a tuning screw, and the central axis of the dielectric resonator and the central axis of the cavity are misaligned. The communication system includes the above-mentioned duplexer. In the duplexer and the communication system with the duplexer provided by the present invention, the duplexer adopts the method of offsetting the dielectric resonator, and does not need to adopt the structure of the cut corner of the dielectric resonator or the cut corner of the metal cavity, which simplifies It reduces the processing difficulty of the dielectric resonator and the main body, avoids the problem of difficulty in forming and manufacturing special-shaped ceramic bodies, and is convenient for processing and low in production cost.

Description

technical field [0001] The invention belongs to the technical field of communication equipment, and in particular relates to a duplexer and a communication system with the duplexer. Background technique [0002] The dielectric filter is a filter composed of a dielectric resonator, and the dielectric resonator is formed by repeated total reflection and resonance of electromagnetic waves inside the medium. Dual-mode filters can be equivalent to double-tuned resonant circuits in practical applications, and band-pass filters can be fabricated by using the coupling between dual-modes. Compared with traditional single-mode filters, dual-mode filters have low loss and small size Small size, elliptic function response, light weight and many other advantages. [0003] In the prior art, there are generally four methods for separating degenerate modules. (1) When degenerate mode coupling is realized by coupling screws, in order to avoid interaction, its position should be located nea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/213
CPCH01P1/2084H01P1/2138H01P7/105H01P5/12H03H7/465
Inventor 王世伟褚庆昕周彦昭
Owner HUAWEI TECH CO LTD
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