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Super wide band plane microstrip filter

A microstrip filter and ultra-wideband technology, applied in the field of filters in the field of communication technology, can solve the problems of narrow frequency band, complex structure and large size of the microstrip filter.

Inactive Publication Date: 2007-01-24
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies and defects in the prior art, and provide an ultra-wideband planar microstrip filter, so that it can solve the deficiencies of the existing microstrip filter such as narrow frequency band, complex structure and large size

Method used

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  • Super wide band plane microstrip filter
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  • Super wide band plane microstrip filter

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Embodiment Construction

[0018] Such as figure 1 As shown, the present invention includes: a front part, a back part and an input / output port.

[0019] Such as figure 2 As shown, the front part of the present invention includes: a first interdigital capacitor unit 1 , a second interdigital capacitor unit 4 , a uniform transmission line 2 , and a dielectric plate 3 . There are two input / output ports, the first interdigital capacitor unit 1 and the second interdigital capacitor unit 4 are located on the front of the dielectric board 3, the first input / output port 5 is connected to the first interdigital capacitor unit 1, and the second The two input / output ports 6 are connected to the second interdigital unit 4 , and the first interdigital capacitor unit 1 and the second interdigital capacitor unit 4 are connected through a uniform transmission line 2 .

[0020] Such as image 3 As shown, the back part of the present invention includes: a first DGS unit 7, a second DGS unit 8, a third DGS unit 9, a ...

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Abstract

This invention relates to a super broad band plane micro-strip filter including: a front part, a rear part and an input / output port, in which, the front part includes: interdigital capacitor units, a uniform transmission line and a medium plate, the two interdigital units are set at both ends of the medium plate, the unform transmission line is set at the middle of the medium plate, the input / output port has two ports connected with the capacitors, the rear part includes: a non-uniform DGS unit, a slot structure unit and an earth unit, the non-uniform DGS unit includes 7 arrayed non-uniformly in an approximate equidifferent sequence, the slot structure has three sets loaded at both sides of the even DGS unit, which applies front and rear circuit structure to realize high pass and low pass filters and reduce areas of circuits.

Description

technical field [0001] The invention relates to a filter in the technical field of communication, in particular to an ultra-wideband planar microstrip filter, which can be used for filtering in ultra-wideband communication. Background technique [0002] With the emergence of various wireless communication systems, the available spectrum resources are increasingly saturated, so that ultra-wideband technology has attracted widespread attention. In February 2002, after the FCC released the use of UWB without a license, UWB technology quickly became a hot spot in the research and development of the international wireless communication field, and was regarded as one of the key technologies of the next generation of wireless communication. In response to the development needs of UWB technology, ultra-wideband filters, as one of the key passive devices in wireless communication systems, have become one of the research hotspots. For UWB filters, it is required to work in a very wid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/203
Inventor 杨国敏金荣洪肖高标耿军平吴琦
Owner SHANGHAI JIAO TONG UNIV
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