CN104347918A - Cross-coupled metal sheet for TE mode dielectric filter and fixing device thereof - Google Patents
Cross-coupled metal sheet for TE mode dielectric filter and fixing device thereof Download PDFInfo
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- CN104347918A CN104347918A CN201310322809.1A CN201310322809A CN104347918A CN 104347918 A CN104347918 A CN 104347918A CN 201310322809 A CN201310322809 A CN 201310322809A CN 104347918 A CN104347918 A CN 104347918A
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Abstract
The invention discloses a cross-coupled metal sheet for a TE mode dielectric filter and a fixing device thereof. The cross-coupled metal sheet for the TE mode dielectric filter comprises two side wings and a metal sheet between the two side wings; the fixing device of the cross-coupled metal sheet for the TE mode dielectric filter comprises a top half insulating supporting body part and a bottom half insulating supporting body part. The fixing device enables the cross-coupled metal part to be more stably fixed to prevent the cross-coupled metal sheet from rotating. The invention provides a cross-coupling device for the TE mode dielectric filter, which is simple, easy to operate and stable.
Description
Technical field
The present invention relates to the microwave filter in wireless communication field, be specifically related to a kind of TE mould dielectric filter cross-couplings sheet metal and fixture thereof.
Background technology
Along with the develop rapidly of wireless communication technology, the performance requirement of operator to filter is more and more higher, the TE mould dielectric filter of high q-factor is widely used, the cross-coupling technique with precipitous band external characteristic can be adopted simultaneously, generally be used as element circuit with the cross-linked form of three chamber cross-couplings or four chambeies, in order to produce the outer transmission zero of required band, cross-couplings assembly must cut electromagnetic field, coupling metal parts need to TE mould media peripheral carry out around, if middle fixed mechanism adopts copper rod, in the case of a shock, pole can rotate, thus destruction electric property, so the installation of the metal parts optimized needs to be proposed with fixing technical scheme.
Summary of the invention
For the problems referred to above, the object of this invention is to provide a kind of fixture effectively fixing TE mould dielectric filter cross-couplings metal parts.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of TE mould dielectric filter cross-couplings sheet metal, comprises the metal derby in the middle of two flanks and two flanks, and described intermetallic metal is block-shaped for cutting out the shape that " recessed " font is formed in the middle of the bottom of " convex " font structure; Two described flanks are same shape, for " work " word removes half horizontal stroke in the upper left corner and the half horizontal shape formed in the lower right corner, one end of two described flanks is vertically connected to the both sides of middle metal derby, and the other end of two described flanks has certain radian.
As the further optimization of such scheme, the surface of described sheet metal is coated with layer of metal copper or aluminium.
As the further optimization of such scheme, the other end cover of two flanks of described sheet metal has heat-shrinkable T bush, can reduce, be then close on cross-couplings sheet metal after described compression sleeve heating.
For making above-mentioned cross-couplings sheet metal stable fixing, present invention employs following fixture: a kind of fixture of TE mould dielectric filter cross-couplings sheet metal, comprise insulation support body the first half and insulation support body the latter half, described insulation support body the latter half is a cuboid, the face of described cuboid two opposition is provided with same draw-in groove, perpendicular to the groove being provided with " fourth " font in the middle of the cuboid one side in draw-in groove direction, opposite with the cuboid one side of the groove of " fourth " font is also provided with draw-in groove, draw-in groove in two described opposites is rectangular-shaped, the degree of depth sum of two draw-in grooves is less than the thickness of the cuboid one side perpendicular to draw-in groove direction, described insulation support body the first half is identical with insulation support body the latter half.
As the further optimization of such scheme, the opposite of the one side of the cuboid with " fourth " font groove of described insulation support body the first half is plane.
Beneficial effect main manifestations of the present invention is: in TE mould dielectric filter, adopt the cross-couplings sheet metal in the present invention and fixture thereof, make cross-couplings metal parts fixing more stable, prevent cross-couplings sheet metal from rotating, provide a kind of cross coupling structure of simple stable TE mould dielectric filter.
Accompanying drawing explanation
Fig. 1 is existing TE mould cross coupling structure schematic diagram.
Fig. 2 is the structural representation of a kind of TE mould of the present invention dielectric filter cross-couplings sheet metal and fixture thereof.
Fig. 3 is the structural representation that the present invention is applied to Fig. 1.
Wherein 1 is dielectric cavity fluid filter, and 2 is chamber walls, and 3 is the breach on the wall of chamber, 4 is grooves, and 5 is TE mould dielectric resonators, and 6 is medium cross-couplings plain conductor cavity mounting screws, 7 is medium cross-couplings plain conductors, 8 is solder joints, and 9 is insulation support body the first half, and 10 is insulation support body the latter halfs, 11 is cross-couplings sheet metals, 12 is heat-shrinkable T bushs, and 13 is draw-in grooves, and 14 is cavitys.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, the invention will be further described.
Embodiment 1: as shown in Figures 2 and 3, a kind of TE mould dielectric filter cross-couplings sheet metal in the present invention, comprise the metal derby in the middle of two flanks and two flanks, described intermetallic metal is block-shaped for cutting out the shape that " recessed " font is formed in the middle of the bottom of " convex " font structure; Two described flanks are same shape, for " work " word removes half horizontal stroke in the upper left corner and the half horizontal shape formed in the lower right corner, one end of two described flanks is vertically connected to the both sides of middle metal derby, and the other end of two described flanks has certain radian.
The surface of described cross-couplings sheet metal 11 is coated with layer of metal copper or aluminium.
The other end cover of two flanks of described sheet metal has heat-shrinkable T bush 12, and described compression sleeve 12 can reduce after heating, and is then close on cross-couplings sheet metal 11.
Stable fixing is obtained for making above-mentioned cross-couplings sheet metal 11, present invention employs following fixture: a kind of fixture of TE mould dielectric filter cross-couplings sheet metal 11, comprise insulation support body the first half 9 and insulation support body the latter half 10, described insulation support body the latter half 10 is a cuboid, the face of described cuboid two opposition is provided with same draw-in groove 13, perpendicular to the groove 4 being provided with " fourth " font in the middle of the cuboid one side in draw-in groove 13 direction, opposite with the cuboid one side of the groove 4 of " fourth " font is also provided with draw-in groove 13, draw-in groove 13 in two described opposites is rectangular-shaped, the degree of depth sum of two draw-in grooves 13 is less than the thickness of the cuboid one side perpendicular to draw-in groove 13 direction, described insulation support body the first half 9 is identical with insulation support body the latter half 10, like this, when making insulating supporting mould, only needing a mould, providing cost savings and the time.
When using of the present invention in a practical situation, first aspectant for fluted for the band of insulation support body the latter half 10 place draw-in groove is installed on the breach 3 be coupled on chamber wall 2, then vertically embed in the groove 4 of insulation support body the latter half 10 by the intermetallic metal block of cross-couplings sheet metal 11 near the ledge of heat-shrinkable T bush 12, then insulation support body the first half 9 is coupled to another ledge of intermetallic metal block of cross-couplings sheet metal 11 by groove 4.
Embodiment 2: on the basis of embodiment 1, when other parts are constant, do as down conversion, the opposite of the one side of the cuboid with " fourth " font groove 4 of described insulation support body the first half 9 is plane, after making insulation support body the latter half 10, cross-couplings sheet metal 11 and insulation support body the first half 9 installation, same level is in the upper plane of dielectric cavity fluid filter 1 above insulation support body the first half 9, more firm, attractive in appearance, be suitable for loading.
Structure of the present invention is not when affecting transmission zero, meet the requirement of filter Out-of-band rejection, by change around direction zero point of capacitive and perception can be provided, and whole process does not have solder joint, thus decreases the intermodulation effects of solder joint 8 pairs of dielectric cavity fluid filters 1; Simultaneously by change to dielectric resonator 5 around length and power and the polarity that effectively can control zero point around direction, thus realize the cross-linked zero point of TE mould dielectric filter 1; Meanwhile, realized the making of cross-couplings sheet metal 11 by machining mode such as punching presses, consistency is good; The cross-couplings sheet metal 11 of the application of the invention and fixture thereof, can prevent the defect of the sheet metal rotation be looped around around TE mould medium, structure is simple, easy to operate, reliable and stable.
By reference to the accompanying drawings the preferred embodiment for the present invention is explained in detail above, but the invention is not restricted to above-mentioned execution mode, in the ken that those of ordinary skill in the art possess, can also make a variety of changes under the prerequisite not departing from present inventive concept.
Do not depart from the spirit and scope of the present invention and can make other changes many and remodeling.Should be appreciated that and the invention is not restricted to specific execution mode, scope of the present invention is defined by the following claims.
Claims (5)
1. a TE mould dielectric filter cross-couplings sheet metal, comprises the sheet metal in the middle of two flanks and two flanks, and described intermetallic metal is block-shaped for cutting out the shape that " recessed " font is formed in the middle of the bottom of " convex " font structure; Two described flanks are same shape, for " work " word removes half horizontal stroke in the upper left corner and the half horizontal shape formed in the lower right corner, one end of two described flanks is vertically connected to the both sides of middle sheet metal, and the other end of two described flanks has certain radian.
2. a kind of TE mould dielectric filter cross-couplings sheet metal according to claim 1, is characterized in that, the surface of described sheet metal is coated with layer of metal silver or copper.
3. a kind of TE mould dielectric filter cross-couplings sheet metal according to claim 1, it is characterized in that, the other end cover of two described flanks has heat-shrinkable T bush.
4. the fixture of a TE mould dielectric filter cross-couplings sheet metal, comprise insulation support body the first half and insulation support body the latter half, described insulation support body the latter half is a cuboid, the face of described cuboid two opposition is provided with same draw-in groove, perpendicular to the groove being provided with " fourth " font in the middle of the cuboid one side in draw-in groove direction, opposite with the cuboid one side of the groove of " fourth " font is also provided with draw-in groove, draw-in groove in two described opposites is rectangular-shaped, the degree of depth sum of two draw-in grooves is less than the thickness of the cuboid one side perpendicular to draw-in groove direction, described insulation support body the first half is identical with insulation support body the latter half.
5. the fixture of a kind of TE mould dielectric filter cross-couplings sheet metal according to claim 4, is characterized in that, the opposite of the cuboid one side of the groove with " fourth " font of described insulation support body the first half is plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310322809.1A CN104347918A (en) | 2013-07-30 | 2013-07-30 | Cross-coupled metal sheet for TE mode dielectric filter and fixing device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310322809.1A CN104347918A (en) | 2013-07-30 | 2013-07-30 | Cross-coupled metal sheet for TE mode dielectric filter and fixing device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104347918A true CN104347918A (en) | 2015-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310322809.1A Pending CN104347918A (en) | 2013-07-30 | 2013-07-30 | Cross-coupled metal sheet for TE mode dielectric filter and fixing device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104347918A (en) |
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2013
- 2013-07-30 CN CN201310322809.1A patent/CN104347918A/en active Pending
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Application publication date: 20150211 |
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| RJ01 | Rejection of invention patent application after publication |