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Band-pass filter based on 5G double-frequency dielectric integrated suspension lines

A band-pass filter and dielectric integration technology, applied in the direction of waveguide devices, electrical components, circuits, etc., can solve the problems of low isolation, poor integration, large insertion loss, etc., achieve high circuit results, realize circuit results, The effect of high isolation and high selectivity

Active Publication Date: 2020-01-07
TIANJIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a low-loss, high-isolation, and high-selection 5G dual-band filter for the problems of large size, no self-packaging, large insertion loss, low isolation, and poor integration in traditional filters. Dielectric-integrated band-pass filter of suspended lines

Method used

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  • Band-pass filter based on 5G double-frequency dielectric integrated suspension lines
  • Band-pass filter based on 5G double-frequency dielectric integrated suspension lines
  • Band-pass filter based on 5G double-frequency dielectric integrated suspension lines

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Embodiment Construction

[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0020] like figure 1 As shown, the bandpass filter of the present invention based on the 5G dual-frequency dielectric integrated suspension line includes the dielectric board Substrate1, the dielectric board Substrate2, the dielectric board Substrate3, the dielectric board Substrate4, and the dielectric board Substrate5 arranged in order from top to bottom, Among them, the dielectric board Substrate2 and the dielectric board Substrate4 are dug out of the medium and hollowed out to form an air cavity, which is convenient for metal shielding. The air cavity 3 is formed between the two cavities and the dielectric plate, and copper pillars are arranged around the hole 1 for For grounding...

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Abstract

The invention discloses a band-pass filter based on 5G double-frequency dielectric integrated suspension lines. The band-pass filter comprises five dielectric plates which are sequentially arranged into five layers from top to bottom, the front and back surfaces of the dielectric plates being provided with metal circuits; the middle portions of the second dielectric plate and fourth dielectric plate which are distributed from the top to the bottom are of hollow structures, so that two air cavities for metal shielding can be formed; filter circuits formed by transmission lines are arranged on the upper layer and lower layer of the third dielectric plate; and the transmission lines comprise a G5-layer metal conductor transmission line and a G6-layer metal conductor transmission line, whereinthe G5-layer metal conductor transmission line is a pair of symmetrically arranged U-shaped resonators used as feeder lines, and the G6-layer metal conductor transmission line comprises two quarter wavelength hairpin type resonators used for generating a first transmission frequency band, two quarter wavelength resonators, and two symmetrically arranged capacitance loading stubs. According to theband-pass filter of the invention, an extra zero point can be generated through an electromagnetic coupling separation effect, and a high-isolation and high-selectivity circuit result is realized.

Description

technical field [0001] The invention relates to the technical field of band-pass filters, in particular to a band-pass filter based on 5G dual-frequency dielectric integrated suspension lines. Background technique [0002] Filter refers to filtering out the specified frequency range in the signal or filtering out the specified frequency range, leaving other frequencies. RF microwave filters are an integral part of systems such as satellite communications, wireless communications, and modern microwave relay communications. With the rapid development of wireless communication technology, frequency resources are increasingly scarce, and communication systems have higher and higher requirements for large data volumes without delay. At this time, the requirements for dual-band filtering are also increasing. The dual-band filter can screen out two frequency points at the same time, which can greatly reduce the size and complexity of the device. Dual-band filters are usually comp...

Claims

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Application Information

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IPC IPC(8): H01P1/203
CPCH01P1/20372H01P1/20381
Inventor 马凯学张雯雯傅海鹏张皓
Owner TIANJIN UNIV
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