Duplexer and communication system with duplexer

A duplexer and dielectric resonator technology, applied in resonators, waveguide devices, electrical components, etc., can solve the problems of difficult to guarantee accuracy, difficult processing, complex shape of ceramic body, etc., to achieve low design and processing difficulty, simplification Processing difficulty, the effect of avoiding molding and manufacturing difficulties

Active Publication Date: 2014-03-12
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 duplexer
  • Duplexer and communication system with duplexer
  • Duplexer and communication system with duplexer

Examples

Experimental program
Comparison scheme
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] like 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 18...

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 suitable for the technical field of communication equipment and discloses a duplexer and a communication system with the duplexer. The duplexer comprises a body, wherein an input port and an output port are formed in the body; a cavity is formed in the body; a dielectric resonator is arranged in the cavity; an input-end coupling piece arranged by being opposite to the dielectric resonator is connected to the input port; an output-end coupling piece arranged by being opposite to the dielectric resonator is connected to the output port; a tuning screw is connected to the body; the centre axis of the dielectric resonator and the centre axis of the cavity are arranged in a staggered way. The communication system comprises the duplexer. According to the duplexer and the communication system with the duplexer provided by the invention, the duplexer adopts a mode of deflecting the dielectric resonator, and the structure of the chamfer of the dielectric resonator or the chamfer of the metal cavity does not need to be used, thus reducing the machining difficulty of the dielectric resonator and the body, avoiding the problem of difficult forming and manufacturing for specially-shaped ceramic bodies, facilitating machining and achieving a low 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 Applications(China)
IPC IPC(8): H01P1/213
CPCH01P1/2084H01P1/2138H01P7/105H01P5/12H03H7/465
Inventor 周彦昭褚庆昕王世伟
Owner HUAWEI TECH CO LTD
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