Filtering power divider and communication system

A technology of power divider and microstrip line, applied in the field of communication, can solve the problem that the filter power divider cannot achieve wide stopband and low radiation loss at the same time, and achieves the reduction of size, cost and good stopband suppression. Effect

Active Publication Date: 2020-11-27
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] An embodiment of the present application provides a filter power divider and a communication system to help solve the problem that the filter power divider in the prior art cannot simultaneously achieve a wide stopband and low radiation loss

Method used

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  • Filtering power divider and communication system
  • Filtering power divider and communication system
  • Filtering power divider and communication system

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Embodiment Construction

[0029] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0030] The following is an explanation of the terms involved in the embodiments of the present application.

[0031] DGS (Defected Ground Structure) defective ground structure;

[0032] SIDGS (Substrate Integrated DGS) substrate integrated defect structure;

[0033] SIW (Substrate Integrated Waveguide) substrate-integrated waveguide;

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Abstract

The embodiment of the invention discloses a filtering power divider and a communication system. The filtering power divider is of a multi-layer structure, the multi-layer structure comprises a first substrate layer and a second substrate layer, wherein a first metal layer is arranged between the first substrate layer and the second substrate layer, a microstrip line layer is arranged on the upperside of the first substrate layer, and a second metal layer is arranged on the lower side of the second substrate layer. The microstrip line layer adopts a step impedance Wilkinson power divider structure; and the first metal layer, the second substrate layer and the second metal layer are provided with substrate integrated defected ground structure resonance units with three-dimensional structures. By adopting the technical scheme provided by the embodiment of the invention, wide stop band and low radiation loss of the filtering power divider can be realized at the same time.

Description

technical field [0001] The present application relates to the technical field of communication, in particular to a filter power divider and a communication system. Background technique [0002] With the development of communication technology, the increase of the operating frequency band of the communication system has led to the increase of unwanted spurious signals received by the communication system, which makes the modern communication system have a strong suppression of out-of-band signals. At the same time, the improvement of the integration level of the communication system also requires the passive devices in the communication system to produce lower radiation when working, and reduce the influence of electromagnetic radiation on other parts of the communication system, so as to improve the electromagnetic compatibility of the communication system. [0003] The filter power divider is a power divider with filter characteristics, because it has both filter characteri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P5/16H01P1/212
CPCH01P1/212H01P5/16
Inventor 韩畅轩钱慧珍罗讯
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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