The accurate microwave adapter of high-performance
Technical field
The present invention relates to microwave adapter technical field, relate in particular to the accurate microwave adapter of a kind of high-performance.
Background technology
In the last few years, development and the development of type millimeter-wave coaxial connector and original paper for the needs of device, system and the testing equipment of upper frequency, have been stimulated.Developed at present the millimeter wave joint that many high-performance are good both at home and abroad.Such as K, 2.4 millimeters, the joint such as APC3.5, SMP, and commercialization, thereby promoted widely the application and development of Millimeter Wave Coaxial device and millimetre integrated circuit.Because Millimeter Wave Coaxial system has a series of distinct advantages such as bandwidth, volume be little, lightweight, particularly in connection, be not subject to the restriction of physical location, in missile brain, electronic countermeasures, radar engineering, Communication Engineering etc., all there is purposes extremely widely, so it is significant to develop the accurate microwave adapter of a kind of high-performance.
Due to the coaxial connector of various wide-band microwave communication equipments, by dwindling inner and outer conductor diameter, expand the way of operating frequency range, can not meet the demands.In coaxial transmission line, there is the effective dielectric constant of medium of insulating supporting relevant with its volume ratio, the characteristic that the cut-off frequency of supporting section and effective dielectric constant are inversely proportional to, reduce the duty ratio of dielectric support, can obtain less effective dielectric constant value, therefore ensuring under the prerequisite of sufficient mechanical strength, should reduce backing material as far as possible.
Summary of the invention
The technical problem to be solved in the present invention is: in order to make up, lack a kind of assurance on the basis of sufficient mechanical strength in prior art, reduce backing material to obtain less effective dielectric constant as far as possible, thereby the microwave adapter of the operating frequency range of expansion wide-band microwave communication equipment, the invention provides the accurate microwave adapter of a kind of high-performance.
The technical solution adopted for the present invention to solve the technical problems is: the accurate microwave adapter of a kind of high-performance, comprise shell, insulator, the outer conductor with axially extending bore, four insulating trips, contact pin and swivel nut, described contact pin is followed successively by front tab vertically from front to back, canned paragraph, linkage section and rear tab, described insulator is set in described canned paragraph and inwall and described canned paragraph close-fitting, described insulator is nested in described shell and the front inner wall close-fitting of outer wall and described shell, described swivel nut is sheathed to be fixed on the back segment outer wall of described shell, the rear end of described outer conductor has annular boss, the front end of described outer conductor stretches into described shell from the rear end of described shell and the leading flank of described annular boss leans on the rear end face of described shell, described outer conductor stretches into outer wall and the described shell close-fitting of the part in described shell, on described outer conductor, offer four draw-in grooves that are uniformly distributed circumferentially that notch is positioned at front end face, described in each, insulating trip is that tile comprises two perpendicular rectangular flanks that have the interlude of curvature and be connected as a single entity with the both sides of described interlude respectively, described four insulating trips along be circumferentially evenly arranged in described shell and the depression direction of described four insulating trips toward the axis of described shell, two adjacent flanks of adjacent two described insulating trips overlap completely and are embedded in a described draw-in groove, the centre position of described linkage section has the contact pin groove of one section of hollow cylinder, described contact pin is nested in the axial passage of four described interludes formation by described contact pin groove.
In order further to improve the electric property of the accurate microwave adapter of described high-performance, the rear end of described insulator also has the dislocation compensation step of the hollow cylinder coaxial with described insulator, and described dislocation compensation step-shaped top leans against on the front end face of described linkage section.
Concrete, between described swivel nut and described shell, on the outer wall of described shell, offer the first ring connected in star coaxial with described shell; Corresponding described first ring connected in star, offers the second annular groove on the inwall of described swivel nut; Between described first ring connected in star and the second annular groove, be provided with snap ring, for fixing described swivel nut and shell.
As preferably, guarantee that swivel nut is difficult for coming off from shell, near described annular boss, between described swivel nut and shell, be also provided with sealing ring.
The invention has the beneficial effects as follows, the accurate microwave adaptor structure of this high-performance is novel, volume is little, lightweight, bandwidth, is guaranteeing on the basis of sufficient mechanical strength, reduce backing material to obtain less effective dielectric constant as far as possible, thereby the operating frequency range of expansion wide-band microwave communication equipment, electric property is good, has good market prospects.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the cutaway view of the optimum embodiment of the accurate microwave adapter of high-performance of the present invention.
Fig. 2 is the structural representation of the insulating trip of the accurate microwave adapter of high-performance of the present invention.
Fig. 3 is the partial structurtes schematic diagram of the accurate microwave adapter of high-performance of the present invention.
In figure 1, insulator, 2, shell, 3, outer conductor, 4, sealing ring, 5, swivel nut, 6, snap ring, 7, insulating trip, 8, contact pin, 11, dislocation compensation step, 31, draw-in groove, 71, interlude, 72, flank, 81, contact pin groove.
Embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, basic structure of the present invention is only described in a schematic way, so it only show the formation relevant with the present invention.
As shown in Fig. 1 ~ 3, the invention provides the accurate microwave adapter of a kind of high-performance, comprise shell 2, insulator 1, the outer conductor 3 with axially extending bore, four insulating trips 7, contact pin 8 and swivel nut 5, contact pin 8 is followed successively by front tab vertically from front to back, canned paragraph, linkage section and rear tab, insulator 1 is set in canned paragraph and inwall and canned paragraph close-fitting, insulator 1 is nested in shell 2 and the front inner wall close-fitting of outer wall and shell 2, the rear end of insulator 1 also has the dislocation compensation step 11 of the hollow cylinder coaxial with insulator 1, dislocation compensation step 11 leans on the front end face of linkage section, dislocation compensation step 11 is to improve the electric property that can further improve adapter, between swivel nut 5 and shell 2, on the outer wall of shell 2, offer the first ring connected in star coaxial with shell 2, corresponding first ring connected in star, on the inwall of swivel nut 5, offer the second annular groove, between first ring connected in star and the second annular groove, be provided with snap ring 6, be used for fixedly swivel nut 5 and shell 2, near annular boss, between swivel nut 5 and shell 2, be also provided with sealing ring 4, guarantee that swivel nut 5 is difficult for coming off from shell 2, the rear end of outer conductor 3 has annular boss, the front end of outer conductor 3 stretches into shell 2 from the rear end of shell 2 and the leading flank of annular boss leans on the rear end face of shell 2, outer conductor 3 stretches into outer wall and shell 2 close-fittings of the part in shell 2, on outer conductor 3, offer four draw-in grooves that are uniformly distributed circumferentially 31 that notch is positioned at front end face, each insulating trip 7 has the interlude 71 of curvature and is connected as a single entity with the both sides of interlude 71 respectively two perpendicular rectangular flanks 72 for tile comprises, four insulating trips 7 along be circumferentially evenly arranged in shell 2 and the depression direction of four insulating trips 7 toward the axis of shell 2, two adjacent flanks 72 of adjacent two insulating trips 7 overlap completely and are embedded in a draw-in groove 31, the centre position of linkage section has the contact pin groove 81 of one section of hollow cylinder, contact pin 8 is nested in the axial passage of four interludes, 71 formation by contact pin groove 81, outer conductor 3 is pressed in shell 2, and coordinate and clamp contact pin 8 with four insulating trips 7, form good mechanical performance, and reduce the duty ratio of dielectric support, can obtain less effective dielectric constant value, ensuring under the prerequisite of sufficient mechanical strength, improve frequency range and the electric property of adapter.
The above-mentioned foundation desirable embodiment of the present invention of take is enlightenment, and by above-mentioned description, relevant staff can, within not departing from the scope of this invention technological thought, carry out various change and modification completely.The technical scope of this invention is not limited to the content on specification, must determine its technical scope according to claim scope.