CN203596400U

CN203596400U - Fixing device for cross coupling metal sheet of TE mode dielectric filter

Info

Publication number: CN203596400U
Application number: CN201320806229.5U
Authority: CN
Inventors: 杜渊
Original assignee: Mitec Communications Equipment (suzhou) Co Ltd
Current assignee: Mitec Communications Equipment (suzhou) Co Ltd
Priority date: 2013-07-30
Filing date: 2013-07-30
Publication date: 2014-05-14
Anticipated expiration: 2023-07-30

Abstract

The utility model discloses a fixing device for a cross coupling metal sheet of a TE mode dielectric filter. The fixing device comprises an upper insulating support body part and a lower insulating support body part. The fixing device is capable of matching the cross coupling metal sheet of the TE mode dielectric filter so as to enable the fixing of the cross coupling metal sheet to be more stable and prevent the cross coupling metal sheet from rotating. The fixing device for the cross coupling metal sheet of the TE mode dielectric filter provided by the utility model is simple, easy to operate and stable.

Description

A kind of fixture of TE mould dielectric filter cross-couplings sheet metal

Technical field

The application is to be 201320456268.7 for application number, and the applying date is on July 30th, 2013, and name is called the divisional application of the utility application of " a kind of TE mould dielectric filter cross-couplings sheet metal and fixture thereof ".The utility model relates to the microwave filter in wireless communication field, is specifically related to a kind of fixture of TE mould dielectric filter cross-couplings sheet metal.

Background technology

Along with the develop rapidly of wireless communication technology, operator is more and more higher to the performance requirement of filter, the TE mould dielectric filter of high Q value is widely used, can adopt simultaneously and there is the precipitous cross-couplings technology with external characteristic, 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 medium periphery carry out around, if middle fixed mechanism adopts copper rod, the in the situation that of vibrations, pole can rotate, thereby destruction electric property, so the installation of the metal parts of optimizing and fixing technical scheme need to be proposed.

Summary of the invention

For the problems referred to above, the purpose of this utility model is to provide a kind of fixture that can effectively fix TE mould dielectric filter cross-couplings metal parts.

For achieving the above object, the technical solution adopted in the utility model is as follows:

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 two opposition of described cuboid is provided with same draw-in groove, in the middle of cuboid one side perpendicular to draw-in groove direction, be provided with the groove of " fourth " font, 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 perpendicular to the cuboid one side of 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.

The beneficial effects of the utility model main manifestations is: in TE mould dielectric filter, adopt the fixture in the utility model, make cross-couplings metal parts fixing more stable, prevent that cross-couplings sheet metal from rotating, and provides 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 fixture of a kind of TE mould of the utility model dielectric filter cross-couplings sheet metal and the structural representation of cross-couplings sheet metal.

Fig. 3 is the structural representation that the utility model is applied to Fig. 1.

Fig. 4 is structural representation of the present utility model.

Wherein 1 is dielectric cavity fluid filter, the 2nd, and chamber wall, the 3rd, the breach on the wall of chamber, the 4th, groove, the 5th, TE mould dielectric resonator, the 6th, medium cross-couplings plain conductor cavity mounting screw, the 7th, medium cross-couplings plain conductor, the 8th, solder joint, the 9th, insulation support body the first half, the 10th, insulation support body the latter half, the 11st, cross-couplings sheet metal, the 12nd, heat-shrinkable T bush, the 13rd, draw-in groove, the 14th, cavity.

Embodiment

Below in conjunction with accompanying drawing and preferred embodiment, the utility model will be further described.

Embodiment 1: as shown in Fig. 2,3 and 4, the cross-couplings sheet metal 11 matching with the fixture of a kind of TE mould of the present embodiment dielectric filter cross-couplings sheet metal, comprise two flanks and two sheet metals that flanks are middle, described intermediate metal film is shaped as and in the middle of the bottom of " protruding " font structure, cuts out the shape that " recessed " font forms; Two described flanks are same shape, for " work " word removes half horizontal stroke in the upper left corner and the half horizontal shape forming in the lower right corner, the both sides of the sheet metal in the middle of one end of two described flanks is vertically connected to, 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, after described compression sleeve 12 heating, can dwindle, then be close on cross-couplings sheet metal 11.

For making above-mentioned cross-couplings sheet metal 11 obtain stable fixing, the present embodiment has adopted 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 two opposition of described cuboid is provided with same draw-in groove 13, in the middle of cuboid one side perpendicular to draw-in groove 13 directions, be provided with the groove 4 of " fourth " font, 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 perpendicular to the cuboid one side of draw-in groove 13 directions, described insulation support body the first half 9 is identical with insulation support body the latter half 10, like this, in the time making insulating supporting mould, only needs a mould, provides cost savings and the time.

Use the utility model in actual conditions time, first installing on the breach 3 being coupled on chamber wall 2 with the aspectant draw-in groove in fluted place insulation support body the latter half 10, then the intermediate metal film of cross-couplings sheet metal 11 is vertically embedded near the ledge of heat-shrinkable T bush 12 in the groove 4 of insulation support body the latter half 10, then insulation support body the first half 9 is coupled to another ledge of intermediate metal film of cross-couplings sheet metal 11 by groove 4.

Embodiment 2: on the basis of embodiment 1, in the situation that 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, make after insulation support body the latter half 10,

cross-couplings sheet metal

11 and 9 installations of insulation support body the first half, insulation support body the first half 9 above with the upper plane of dielectric cavity fluid filter 1 in same level, more firm, attractive in appearance, be suitable for loading.

The utility model is not in the situation that 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 do not have solder joint, thereby reduced the intermodulation impact of solder joint 8 on dielectric cavity fluid filter 1; Simultaneously by change to dielectric resonator 5 around length and can effectively control power and the polarity at zero point around direction, thereby the cross-linked zero point of realizing TE mould dielectric filter 1; Meanwhile, realize the making of cross-couplings sheet metal 11 by machining mode such as punching presses, high conformity; By using the utility model, can prevent from being looped around the defect that TE mould medium sheet metal around rotates, simple in structure, easy to operate, reliable and stable.

By reference to the accompanying drawings the utility model preferred implementation is explained in detail above, but the utility model is not limited to above-mentioned execution mode, in the ken possessing those of ordinary skills, can also under the prerequisite that does not depart from the utility model aim, make a variety of changes.

Do not depart from design of the present utility model and scope and can make many other changes and remodeling.Should be appreciated that the utility model is not limited to specific execution mode, scope of the present utility model is defined by the following claims.

Claims

1. 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 two opposition of described cuboid is provided with same draw-in groove, in the middle of cuboid one side perpendicular to draw-in groove direction, be provided with the groove of " fourth " font, 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 perpendicular to the cuboid one side of draw-in groove direction, described insulation support body the first half is identical with insulation support body the latter half.

2. the fixture of a kind of TE mould dielectric filter cross-couplings sheet metal according to claim 1, 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.