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Miniaturized dual-band bandpass filter based on stacked dielectric integrated waveguide

A dielectric-integrated waveguide and dual-frequency bandpass technology, which is applied in waveguide devices, electrical components, circuits, etc., can solve the problems of large volume, poor passband isolation, and low power capacity of dual-frequency bandpass filters, and achieves a steep edge The effect of selective characteristics, small passband insertion loss, and low cost

Active Publication Date: 2018-05-11
THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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AI Technical Summary

Problems solved by technology

The dual-band bandpass filter designed by the traditional method has the disadvantages of large volume, large insertion loss, low Q value, poor isolation between passbands, poor selectivity, and low power capacity, and it is difficult to better meet the requirements of modern communication equipment and stringent requirements of the device

Method used

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  • Miniaturized dual-band bandpass filter based on stacked dielectric integrated waveguide
  • Miniaturized dual-band bandpass filter based on stacked dielectric integrated waveguide
  • Miniaturized dual-band bandpass filter based on stacked dielectric integrated waveguide

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Embodiment Construction

[0031] The technical solution of the present invention will be further introduced below in combination with specific embodiments.

[0032] The invention discloses a miniaturized dual-frequency bandpass filter based on a stacked dielectric integrated waveguide, such as figure 1 As shown, there are three stacked dielectric-integrated waveguide resonators: the upper, middle and lower dielectric-integrated waveguide resonators; the upper dielectric-integrated waveguide resonator 1 and the lower dielectric-integrated waveguide resonator 2 have the same structure, and the two are placed in reverse, symmetrical about the center of the filter , and couple energy to each other through the middle dielectric integrated waveguide resonator 3; the upper dielectric integrated waveguide resonator 1 and the lower dielectric integrated waveguide resonator 2 have the same structure, and the above dielectric integrated waveguide resonator 1 is taken as an example here for introduction, as figur...

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Abstract

The invention discloses a miniaturized dual-band-pass filter based on a stacked dielectric integrated waveguide, which includes upper, middle and lower stacked dielectric integrated waveguide resonators. The upper and lower dielectric integrated waveguide resonators have the same structure and are placed in opposite directions, they are symmetrical about the center of the filter, and couple energy to each other through the middle dielectric integrated waveguide resonator. Compared with microstrip lines, the present invention has higher Q value and higher power carrying capacity, and has smaller passband insertion loss, larger return loss, steep edge selection characteristics and larger passband gap. The isolation degree achieves the optimization purpose of miniaturization, and the processing and testing are convenient, the structure is simple, and the cost is low.

Description

technical field [0001] The invention relates to a dual-frequency band-pass filter, in particular to a miniaturized dual-frequency band-pass filter based on a stacked dielectric integrated waveguide. Background technique [0002] The filter is one of the indispensable and important components in the modern communication system, and its performance has a decisive impact on the communication quality of the communication system. With the development of communication technology, multi-standard and multi-frequency communication methods that can effectively improve communication quality and communication efficiency have also received more and more attention. The multi-standard mobile communication pattern requires communication equipment to support two or more communication systems to work at the same time. Therefore, a dual-band bandpass filter capable of supporting dual-band communication has attracted the attention of many researchers in recent years. The dual-band bandpass fi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/203
Inventor 王辉蒋飞傅军何加浪任志宏杨怡蒋锴
Owner THE 28TH RES INST OF CHINA ELECTRONICS TECH GROUP CORP
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