CN203760612U - Novel multi-mode resonance ultra-wideband filter - Google Patents
Novel multi-mode resonance ultra-wideband filter Download PDFInfo
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- CN203760612U CN203760612U CN201320764383.0U CN201320764383U CN203760612U CN 203760612 U CN203760612 U CN 203760612U CN 201320764383 U CN201320764383 U CN 201320764383U CN 203760612 U CN203760612 U CN 203760612U
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- short circuit
- minor matters
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- circuit minor
- wide band
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- 230000005540 biological transmission Effects 0.000 claims abstract description 24
- 230000008878 coupling Effects 0.000 claims abstract description 12
- 238000010168 coupling process Methods 0.000 claims abstract description 12
- 238000005859 coupling reaction Methods 0.000 claims abstract description 12
- 239000000758 substrate Substances 0.000 claims abstract description 11
- 239000002184 metal Substances 0.000 claims abstract description 7
- 238000005452 bending Methods 0.000 claims description 2
- 238000004891 communication Methods 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 description 3
- 230000005764 inhibitory process Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
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Abstract
The utility model discloses a novel multi-mode resonance ultra-wideband filter, comprising a medium substrate (1), transmission coupling lines (2), a many-mode resonator open circuit branch (3), a many-mode resonator short circuit branch (4), a metal short circuit hole (5), rectangle grooves, and a grounding surface (7). The many-mode resonator open circuit branch (3), the many-mode resonator short circuit branch and the coupling transmission lines are printed on the upper surface of the medium substrate; the metal hole is connected to the grounding surface and the short circuit branch; the coupling transmission lines adopts interdigitated coupling structures; the rectangle grooves and the grounding surface are printed on the back of the medium substrate; and the two rectangle grooves are symmetrical relative to a center axis. The novel multi-mode resonance ultra-wideband filter is compact in structure and small in size, meets the communication requirement of the ultra-wideband, has good frequency selection and can inhibit the low-high frequency interference.
Description
Technical field
The utility model relates to a kind of filter, a kind of novel multimode resonance ultra-wide band filter of specific design.This filter, by loading two counterfoil resonators, has good broadband character, well covers the band limits of UWB (3.1～10.6GHz), has good omnidirectional radiation characteristic.
Background technology
Along with the develop rapidly of wireless communication technology and radio multimedium business, ultra broadband (UWB) technology receives more and more researchers' concern.Ultra broadband, with advantages such as its two-forty, low-power consumption, high security and antijamming capability are strong, has boundless application prospect and quite huge market value.Due to the potential tempting application prospect of super-broadband tech, US Federal Communication Committee (FCC) has ratified the application of super-broadband tech in short-distance wireless communication field in February, 2002, this has opened gate for the commercial applications of super-broadband tech product, has promoted radio ultra wide band system and device progress of research thereof.As one of Primary Component of radio-frequency front-end, the quality of ultra-wide band filter performance directly affects the quality of whole communication system.In order to adapt to the requirement of microwave integrated circuit miniaturization, filter not only wants performance good, and wants that volume is little, compact conformation, is convenient to integrated and interconnected.Radio frequency low side major part is used in Modern wireless communication, so FCC has quite strict requirement to the use of low frequency end.This requires radio ultra wide band system to outside being with, and especially low-frequency range is had to good inhibition.So just need a high performance ultra-wide band filter that bandwidth is strictly limited in the scope of FCC regulation.So it is good to design a skirt selectivity, it is one of key overcoming the above problems that harmonic wave is suppressed to higher ultra-wide band filter.
Utility model content
The purpose of this utility model is to provide a kind of simple in structure, and volume is small and exquisite, has a kind of novel multimode resonance ultra-wide band filter of good skirt selectivity and good harmonic responses, can be used in radio-frequency devices front end, realizes good communication performance.
Technical scheme described in the utility model is:
A kind of novel multimode resonance ultra-wide band filter, it is characterized in that: comprise medium substrate (1), transmission coupling line (2), multimode resonator open circuit minor matters (3), multimode resonator short circuit minor matters (4), short circuit metal hole (5), rectangular channel (6), ground plane (7).Described coupled transmission line, multimode resonator are printed on dielectric surface, and described rectangular channel, ground plane are at the back side of medium substrate.
A kind of novel multimode resonance ultra-wide band filter, it is characterized in that: multimode resonator is comprised of open circuit counterfoil and two short circuit minor matters of two semicircular arc bendings, form two counterfoil resonators, the open circuit minor matters that load on transmission line and short circuit minor matters, open circuit minor matters adopt crooked broken line structure, and its size equates and be symmetrical about central shaft.Two short circuit minor matters are connected, and middle perforate is connected with ground plane, formation loop.
A novel multimode resonance ultra-wide band filter, is characterized in that: coupled transmission line adopts toe type coupled structure, be connected with 50 ohm transmission line, symmetry be positioned at central shaft both sides.
A novel multimode resonance ultra-wide band filter, is characterized in that: under coupled transmission line, on ground plane, about the position of central shaft symmetry, open rectangular channel, the physical dimension of two rectangular channels equates.
Concrete structure:
(1) the utility model by loading open circuit minor matters and short circuit minor matters on transmission line, and open circuit minor matters adopt crooked broken line structure.Its size equates and is symmetrical about central shaft, and two short circuit minor matters are connected, and middle perforate is connected with ground plane, formation loop.Ground plane is opened rectangular channel.Within the scope of 3.1～10.6GHz, produce four modes of resonance, and make to produce transmission zero between height frequency, there is good skirt selectivity and low-and high-frequency harmonic wave inhibition.
(3) coupled transmission line of the present utility model adopts toe coupling, and the spacing between coupling line has determined stiffness of coupling, and the bandwidth of filter is had to larger impact.
(4) the utility model filter single layer printed circuit plate technique can realize, and simple and compact for structure, volume is small and exquisite, easy to process, and cost is low, is convenient to batch production.
Accompanying drawing explanation
Fig. 1 is front elevation of the present utility model;
Fig. 2 is side view of the present utility model;
Embodiment
Filter examples:
As shown in Figure 1, a kind of novel multimode resonance ultra-wide band filter, its composition comprises: medium substrate (1), transmission coupling line (2), multimode resonator open circuit minor matters (3), multimode resonator short circuit minor matters (4), short circuit metal hole (5), rectangular channel (6), ground plane (7).Described multimode resonator open circuit minor matters, multimode resonator short circuit minor matters, coupled transmission line are all printed on medium substrate upper surface, and metal aperture connects ground plane and short circuit minor matters.Coupled transmission line adopts toe type coupled structure.Rectangular channel, ground plane are printed on the medium substrate back side, and two rectangular channels are symmetrical about central shaft.
Described medium substrate is polytetrafluoroethylene material, thickness 0.8mm, and relative dielectric constant is 2.55.
Described loading open circuit minor matters and short circuit minor matters on transmission line, open circuit minor matters adopt crooked semi arch broken line structure.Two short circuit minor matters adopt curved crease line structure and are connected, and open metal aperture be connected with ground plane by centre, form loop.Within the scope of 3.1～10.6GHz, produce four modes of resonance, and make to produce transmission zero between height frequency, there is good skirt selectivity and low-and high-frequency harmonic wave inhibition.
Described coupled transmission line consists of toe coupled structure, and toe coupled structure is connected and composed by three parallel coupling feed and 50 ohm of feed port that are placed to toe type, and between coupling line, interval has considerable influence to bandwidth range.
A kind of novel multimode resonance ultra-wide band filter, this filter mainly forms multimode resonator by the open circuit minor matters of crooked semi arch broken line structure and the short circuit minor matters of broken line structure, form four work modes of resonance, its impedance bandwidth can cover 3.1-10.6GHz, meet the demand of ultra-wideband communications, there is good frequency selectivity, well suppress the interference of height frequency.
Claims (4)
1. a novel multimode resonance ultra-wide band filter, a kind of novel multimode resonance ultra-wide band filter, it is characterized in that: comprise medium substrate (1), transmission coupling line (2), multimode resonator open circuit minor matters (3), multimode resonator short circuit minor matters (4), short circuit metal hole (5), rectangular channel (6), ground plane (7), described coupled transmission line, multimode resonator are printed on dielectric surface, and described rectangular channel, ground plane are at the back side of medium substrate.
2. a kind of novel multimode resonance ultra-wide band filter according to claim 1, it is characterized in that: multimode resonator is comprised of open circuit counterfoil and two short circuit minor matters of two semicircular arc bendings, form two counterfoil resonators, the open circuit minor matters that load on transmission line and short circuit minor matters, open circuit minor matters adopt crooked broken line structure, and its size equates and about central shaft symmetry, two short circuit minor matters are connected, and middle perforate is connected with ground plane, form loop.
3. a kind of novel multimode resonance ultra-wide band filter according to claim 1, is characterized in that: coupled transmission line adopts toe type coupled structure, be connected with 50 ohm transmission line, symmetry be positioned at central shaft both sides.
4. a kind of novel multimode resonance ultra-wide band filter according to claim 1, is characterized in that: under coupled transmission line, on ground plane, about the position of central shaft symmetry, open rectangular channel, the physical dimension of two rectangular channels equates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320764383.0U CN203760612U (en) | 2013-11-27 | 2013-11-27 | Novel multi-mode resonance ultra-wideband filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320764383.0U CN203760612U (en) | 2013-11-27 | 2013-11-27 | Novel multi-mode resonance ultra-wideband filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203760612U true CN203760612U (en) | 2014-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320764383.0U Expired - Fee Related CN203760612U (en) | 2013-11-27 | 2013-11-27 | Novel multi-mode resonance ultra-wideband filter |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104767015A (en) * | 2015-03-30 | 2015-07-08 | 西安理工大学 | Miniaturized UWB Filters |
| CN105720334A (en) * | 2016-02-29 | 2016-06-29 | 电子科技大学 | Band-pass filter based on multi-branch loading annular resonator |
| CN106876842A (en) * | 2015-12-13 | 2017-06-20 | 哈尔滨飞羽科技有限公司 | Double trap bandpass filters of the single open circuit minor matters of toroidal cavity resonator loading |
-
2013
- 2013-11-27 CN CN201320764383.0U patent/CN203760612U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104767015A (en) * | 2015-03-30 | 2015-07-08 | 西安理工大学 | Miniaturized UWB Filters |
| CN104767015B (en) * | 2015-03-30 | 2018-02-27 | 西安理工大学 | Miniature ultra wide band wave filter |
| CN106876842A (en) * | 2015-12-13 | 2017-06-20 | 哈尔滨飞羽科技有限公司 | Double trap bandpass filters of the single open circuit minor matters of toroidal cavity resonator loading |
| CN105720334A (en) * | 2016-02-29 | 2016-06-29 | 电子科技大学 | Band-pass filter based on multi-branch loading annular resonator |
| CN105720334B (en) * | 2016-02-29 | 2019-02-01 | 电子科技大学 | A kind of bandpass filter based on racemosus section load toroidal cavity resonator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20151127 |