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Multi-passband and ultra wide band switchable UWB filter based on switch principle

A multi-passband and ultra-wideband technology, applied in waveguide devices, electrical components, circuits, etc., can solve the problems of poor selectivity and large volume, and achieve the effects of convenient processing, simple design structure, and compact structure

Inactive Publication Date: 2016-07-20
HARBIN HESON SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In recent years, there have been many design ideas about filters, such as multimode resonators (MMR), cascaded structures, cross-coupling, etc., but although these structures can achieve filtering effects, they are large in size or poor in selectivity, and only one Design ideas to achieve a function

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  • Multi-passband and ultra wide band switchable UWB filter based on switch principle
  • Multi-passband and ultra wide band switchable UWB filter based on switch principle
  • Multi-passband and ultra wide band switchable UWB filter based on switch principle

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Embodiment Construction

[0018] The present invention designs a switchable UWB filter based on the principle of switching between multi-passband and ultra-wideband. When the switch patch (1014) exists, that is, when the switch is closed, the filter realizes a wider passband than the standard ultra-wideband. However, when the switch patch (1014) does not exist, that is, when the switch is turned off, multiple passbands are realized, and signals of multiple frequency bands can be selected at the same time.

[0019] The invention will be described in more detail below in conjunction with the accompanying drawings:

[0020] An example of the present invention is figure 2 As shown, the dielectric substrate (104) is FR4_epoxy with a dielectric constant of 4.4. The dielectric substrate has a thickness of 1.59 mm and a dielectric loss of 0.02. The metal grounding plate (105) under the dielectric substrate is made of copper material.

[0021] Such as figure 1 As shown, the UWB filter based on the switchin...

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Abstract

The invention discloses a multi-passband and ultra wide band switchable UWB filter based on a switch principle. The filter is composed of multimode resonance patches (101) which are arranged on the upper surface of a dielectric substrate and are symmetrical, port patches (102), microstrip transmission lines (103), the dielectric substrate (104) and a metal ground plate (105) under the dielectric substrate. According to the filter, through utilization of the multimode resonance patches, the ultra wide band is realized; two states of the multiple passbands and the ultra wide band are switched according to whether a switch patch exists or not. The filter is simple in design structure, compact in structure, micronized in structure, convenient in processing, high in realization performance and low in cost. The two states of the multiple passbands and the ultra wide band can be switched at any time. The filter provided by the invention has a good state switch advantage. The state can be selected at any time according to a demand. Great convenience is brought to the practical application of a project.

Description

technical field [0001] The present invention relates to a switchable UWB filter based on the principle of a switch with two states of multi-passband and ultra-wideband. The filter realizes an ultra-wideband filter and has a wider bandwidth than the UWB standard bandwidth when the switch is closed. However, when the switch is open The multi-passband can be selected in multiple frequency bands according to the requirements. The switchable UWB filter with multi-passband and ultra-wideband can change its function at any time according to different needs. Therefore, the filter is widely used in wireless communication technology and It has important application value in radar system. Background technique [0002] The switch plays an indisputable role in the circuit, mainly to control the closing and opening of the circuit, and to switch different working circuits by using the switch. The multi-passband and ultra-wideband two-state switchable UWB filter uses this Features are desi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/203
Inventor 王燕燕赵永生孙照清
Owner HARBIN HESON SCI & TECH
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