A kind of four enter four goes out electric bridge
Technical field
The invention belongs to mobile communication equipment field, particularly one four is entered four and is gone out electric bridge; Mainly through the thickness of the spacing control medium between coupling piece, the present invention, by the synthesis of built-in coupling piece settling signal and distribution, ensures that spacing between coupling piece is to realize synthesis and the distribution of the signal of electric bridge concretely.
Background technology
Wideband electrical bridge is a kind of signal combiner device of wireless telecommunications system, and four enter four goes out the signal that electric bridge can realize four frequency bands, and with minimum loss, optimum matching performance, best isolation index completes the networking of communication.
Along with communication is fast-developing, 3G standard WCDMA, CDMA2000, TD-SCDMA 3-G (Generation Three mobile communication system) are built on a large scale, the commercialization of 4G standard LTE.These change the requirement that improve communication network:
A. working band needs the optimum synthesis of the signal realizing 800-2700MHz and distributes 6 ± 0.6 dB
B. better intermodulation index, third order intermodulation demand fulfillment≤-150dBc
C. to the better matching performance of needs, standing wave (VSWR)≤1.3
D. index >=22dB is better isolated
E. larger load power: 200W
F. better resistance to environmental requirement: IP66
In engineering, four enter four and go out electric bridge two shown in four Fig. 1 can be adopted to enter scene 2 electric bridge, connected by cable, four tunnels that have of formation Fig. 2 a, Fig. 2 b structure input and the system forming four tunnels outputs, substantially can meet engineering demand although it is so, but there is following problem:
First, because four two are entered scene 2 electric bridge and four of composition and enter four systems gone out and need to use radio frequency line to be connected, increase the Insertion Loss of system, indicator of distribution on a wide frequency band cannot be met, the standing wave impact of cable simultaneously, causes the standing wave index of this system poor with isolation index.Secondly owing to being a system, need to ensure index, have larger debugging difficulty; Moreover, poor reliability, cable and joint through bending and easily fracture and loose contact after twisting repeatedly, and then affect intermodulation index; The more important thing is, cost is high, needs four electric bridges and four cables, and in addition, four common electric bridges are connected, and middle also have cable to connect, and take up space very much, volume is excessive, is inconvenient to use.
Summary of the invention
In view of this, main purpose of the present invention is the deficiency and the defect that solve background technology existence, the present invention proposes and a kind ofly there is four of more excellent electrical specifications and environmental index (comprising power division, load power, standing wave, isolation, intermodulation) enter four electric bridges gone out, the present invention is by a kind of novel electric bridge coupling piece, spacing control medium 7 controls the spacing between coupling piece, and undertaken fastening by plastic screw, ensure that electric bridge is to the synthesis of power signal and distribution.The present invention has bandwidth, and compatible various standard, better electric property and third order intermodulation index, its cost is low, and volume is little, practical.
For solving the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of four enter four goes out electric bridge, comprises cavity 1, upper coupling piece 3, two the lower coupling pieces 4 of DINd type female connector 2, two, supports long medium 5, supports short medium 6, spacing control medium 7, inner cover plate 10, outer cover plate 12;
Support long medium 5 and support short medium 6 for cylindrical, the center of an end face of cylinder is provided with projecting plug; Two upper coupling pieces 3 are connected with DINd type female connector 2 respectively with two lower coupling pieces 4; Spacing control medium 7 is annular;
Spacing control medium 7 is fixed between coupling piece 3 and lower coupling piece 4, three forms recombiner unit, each upper coupling piece 3 and lower coupling piece 4 all offering a medium jack, supporting that long medium 5 is relative with supporting the projecting plug of short medium 6 one end to be inserted in medium jack;
Be provided with four fixed jacks in cavity 1, two long media of columniform support 5 and two short media 6 of columniform support are located at interval in fixed jack respectively, and four fixed jacks carry out spacing and fixing to the long medium 5 of support and the short medium 6 of support; Supporting long medium 5 with each, the relative short medium of support 6 be inserted in medium jack is provided with inner cover plate 10 with supporting above long medium 5 with supporting short medium 6, and be provided with outer cover plate 12 above inner cover plate, inner cover plate 10 and outer cover plate 12 are fixed with cavity 1 respectively.
Described upper coupling piece 3 is an isosceles right-angle structure, and right angle has chamfering, and medium jack is positioned at chamfering place; Two right-angle sides respectively have a through hole, upper coupling piece is connected with lower coupling piece through through hole by plastics trip bolt 8.
Described lower coupling piece 4 is an isosceles right-angle structure, and right angle carries out chamfering, and medium jack is positioned at chamfering place; Two right-angle sides respectively have an internal thread hole, upper coupling piece is connected with lower coupling piece through internal thread hole by plastics trip bolt 8.
Described two upper coupling pieces 3 are in same level, and described two lower coupling pieces 4 are in same level, upper coupling piece and lower coupling piece 90 ° intersect and place each other in the horizontal direction; Spacing control medium 7 is positioned between coupling piece 3 and lower coupling piece 4, and the circular hole in the middle of through hole on upper coupling piece 3 right-angle side, annular spacing control medium 7 and the screwed hole on lower coupling piece 4 right-angle side coaxial, plastics trip bolt 8 is through the through hole on the right-angle side of upper coupling piece 3 and spacing control medium 7, meshing with the screw thread of internal thread hole on lower coupling piece 4 right-angle side.
Described electric bridge cavity 1 is provided with waterproof groove 1.3, waterproof groove 1.3, is inside placed with water proof rubber circle 11, waterproof groove 1.3 is between inner cover plate 10 and cavity 1.
The lower surface of described inner cover plate 10 is provided with four fixed jacks, for carrying out spacing and fixing to the long medium 5 of support and the short medium 6 of support.
Described DINd type female connector 2 has eight, and the four each correspondences in side outside cavity 1 are provided with two; DINd type female connector 2 comprises circular plug 2.1, milling side 2.2, water proof rubber circle 2.4; Milling side 2.2 is positioned at connector center conductor and stretches out place, and in milling side, there is internal thread hole 2.3 at 2.2 places; Milling side 2.2 faces up, and is fastened on cavity 1 by stainless steel screw 13; Cavity 1 is provided with the socket matched with circular plug 2.1.
Upper coupling piece 3 in described recombiner unit and lower coupling piece 4 are provided with binding thread through hole, binding thread through hole is coaxial with the internal thread hole on DINd type connector 2 upper milling position 2.2, silver plated metals screw is through binding thread through hole and internal thread hole, recombiner unit is connected with DINd type female connector, is completed the pairing of the center conductor of recombiner unit and DINd type female connector 2 by silver plated metals screw 9.
Compared with prior art, beneficial effect of the present invention is:
Structure of the present invention is simple, only need can ensure electrical specifications, without the need to doing further debugging by installing.This electric bridge can realize the replacement of N Connector, therefore has high compatibility and reliability; The present invention have size little, be convenient to install and use, the feature of good product performance: there is more excellent performance, better allocation performance, better intermodulation performance.
Accompanying drawing explanation
Fig. 1 is the two electric bridge block diagrams entering scene 2 in prior art;
Fig. 2 a be in prior art a kind of by four two enter that scene 2 electric bridge is connected in series four enter four and go out electrical bridge principle schematic diagram;
Fig. 2 b be in prior art a kind of by four two enter that scene 2 electric bridge is connected in series four enter four and go out electrical bridge principle schematic diagram;
Fig. 3 a of the present invention four enters four and goes out electric bridge band outer cover plate shape assumption diagram;
Fig. 3 b of the present invention four enters four and goes out electric bridge without outer outer cover plate cover plate shape assumption diagram;
Fig. 4 is of the present invention four vertical views entering that four go out electric bridge internal structure;
Fig. 5 is electric bridge coupling piece assembling assumption diagram of the present invention;
Fig. 6 a is the three-dimensional structure diagram of cavity of the present invention;
Fig. 6 b is the plan structure figure of cavity of the present invention;
Fig. 7 is the stereogram of DINd type female connector of the present invention;
Fig. 8 is the vertical view of upper coupling piece of the present invention;
Fig. 9 is the vertical view of lower coupling piece of the present invention;
Figure 10 is the cutaway view of the long medium of support of the present invention;
Figure 11 is the cutaway view of the short medium of support of the present invention;
Figure 12 is the vertical view of spacing control medium of the present invention;
Figure 13 is cover plate vertical view of the present invention;
Wherein, 1-electric bridge cavity;
1.1-the socket supporting with DINd type female connector;
1.2-with support the jack that matches of short medium;
Waterproof groove on 1.3-cavity;
1.4-the screwed hole supporting with inner cover plate;
1.5-the screwed hole supporting with outer cover plate;
1.6-the guide ledges supporting with inner cover plate;
1.7-with support the jack that matches of long medium;
2-DINd type female connector;
2.1-the plug supporting with the socket on cavity;
Milling side in 2.2-DINd type female connector female;
Internal thread hole on 2.3-DINd type female connector center conductor;
2.4-water proof rubber circle;
Coupling piece on 3-electric bridge;
3.1-the through hole supporting with lower coupling piece 4, spacing control medium 7, plastics trip bolt 8;
3.2-binding thread the through hole supporting with DINd type female connector center conductor;
3.3-upper coupling piece drift angle place chamfer;
Coupling piece under 4-electric bridge;
4.1-the internal thread hole supporting with upper coupling piece 3, spacing control medium 7, plastics trip bolt 8;
4.2-binding thread the through hole supporting with DINd type female connector center conductor;
4.3-lower coupling piece drift angle place chamfer;
4.4-with support long medium, support the supporting socket aperture of short medium;
5-support long medium;
5.1-the projecting plug supporting with the jack on upper coupling piece or lower coupling piece;
5.2-the plug that matches with jack on cavity and inner cover plate;
5.3-support long medium bottom surface;
6-support short medium;
6.1-the projecting plug supporting with the jack on upper coupling piece or lower coupling piece;
6.2-the plug that matches with jack on cavity and inner cover plate;
6.3-support short medium bottom surface;
7-spacing control medium;
The through hole of 7.1-spacing control medium;
8-plastics trip bolt;
9-silver-plated copper screw;
10-inner cover plate; 10.1 jacks matched with the long medium 6 of support;
10.2-with support the jack that matches of long medium 5;
10.3-the through hole that matches with cavity upper screwed hole;
10.4-the through hole that matches with cavity guide ledges;
11-rubber ring;
12-outer cover plate;
12.1-outer cover plate port silk-screen;
13-stainless steel screw;
14-stainless steel screw;
15-stainless steel screw.
Embodiment
Below in conjunction with accompanying drawing and example, the present invention is further described in more detail.
With reference to Fig. 3, Fig. 4, Fig. 5, the present invention includes cavity 1, upper coupling piece 3, two the lower coupling pieces 4 of DINd type female connector 2, two, support long medium 5, support short medium 6, spacing control medium 7, inner cover plate 10, outer cover plate 12;
Support long medium 5 and support short medium 6 for cylindrical, the center of an end face of cylinder is provided with projecting plug; Two upper coupling pieces 3 are connected with DINd type female connector 2 respectively with two lower coupling pieces 4; Spacing control medium 7 is annular;
Spacing control medium 7 is fixed between coupling piece 3 and lower coupling piece 4, three forms recombiner unit, each upper coupling piece 3 and lower coupling piece 4 all offering a medium jack, supporting that long medium 5 is relative with supporting the projecting plug of short medium 6 one end to be inserted in medium jack;
Be provided with four fixed jacks in cavity 1, two long media of columniform support 5 and two short media 6 of columniform support are located at interval in fixed jack respectively, and four fixed jacks carry out spacing and fixing to the long medium 5 of support and the short medium 6 of support; Supporting long medium 5 with each, the relative short medium of support 6 be inserted in medium jack is provided with inner cover plate 10 with supporting above long medium 5 with supporting short medium 6, and be provided with outer cover plate 12 above inner cover plate, inner cover plate 10 and outer cover plate 12 are fixed with cavity 1 respectively.
Fig. 4 is schematic internal view of the present invention, DINd type female connector 2 and cavity 1 are connected by screw 13,2.2, DINd type connector milling side is parallel with cavity 1 bottom surface, supporting long medium 5 and supporting short medium 6 is placed in the jack in cavity 1, the thickness supporting long medium 5, at 8.5mm ± 0.2mm, supports the thickness of short medium 6 at .5mm ± 0.2mm; On electric bridge, under coupling piece 3, electric bridge, the recombiner unit of coupling piece 4, spacing control medium 7 and plastics trip bolt 8 composition is positioned over the long medium of support 5 in cavity 1 and supports on short medium 6, ensure that the tapped through hole of the recombiner unit of coupling piece is coaxial with the screwed hole on DINd type connector 2 upper milling position 2.2, by silver plated metals screw 9 by coupling piece recombiner unit and DINd type fastening connector simultaneously.Medium jack on coupling piece recombiner unit is placed and supports long medium 5 and support short medium 6, and ensure that the bottom surface 6.3 of the bottom surface 5.3 and the short medium 6 of support supporting long medium 5 is in same plane.After fastening plastic screw 9, matched by the guide ledges 1.7 of cavity 1 and the guide through hole 10.4 of inner cover plate 10, complete the installation of cavity 1 and inner cover plate, completed the assembling of cavity 1 and inner cover plate 10 by screw 15.After water proof rubber circle 11 being placed in the waterproof groove 1.3 on cavity 1, completed the assembling of cavity 1 and outer cover plate by stainless steel screw 14.
Fig. 6 a, 6b are the schematic diagram of cavity 1, cavity 1 can be obtained clearly comprise: with the socket 1.1 that DINd type female connector is supporting from figure, support the medium jack 1.2 of short medium pairing, waterproof groove 1.3, with the screwed hole 1.4 that inner cover plate is supporting, with the screwed hole 1.5 that outer cover plate is supporting, with the guide ledges 1.6 that inner cover plate is supporting, the medium jack 1.7 matched with the long medium of support.
Fig. 7 is DINd type female connector 2 device schematic diagram, DINd type female connector can be obtained clearly comprise: with cavity 1 complementary socket 2.1 from figure, with the milling aspect 2.2 of upper and lower coupling piece contact-making surface, the internal thread hole 2.3 fastening with upper and lower coupling piece, and water proof rubber circle 2.4.DINd type female connector 2 is with water proof rubber circle 2.4, and center conductor stretches out place has carried out milling side 2.2, in milling side, there is internal thread hole 2.3 at 2.2 places, and this connector has low intermodulation characteristic, the milling side 2.2 of the center conductor of connector faces up, and is fastened on cavity 1 by stainless steel screw 13.
Fig. 8 is the intention of upper coupling piece 3, upper coupling piece 3 can be obtained clearly comprise: with the through hole 3.1 that lower coupling piece 4, spacing control medium 7, plastics trip bolt 8 are supporting from figure, with the binding thread through hole 3.2 that DINd type female connector center conductor is supporting, upper coupling piece drift angle place chamfer 3.3, with the long medium of support, supports the supporting medium jack 3.4 of short medium.
Fig. 9 is the intention of lower coupling piece 4, upper coupling piece 4 can be obtained clearly comprise: determine due to spacing control medium thickness with upper coupling piece 3, spacing control medium 7(from figure, thus ensure the distance between upper and lower coupling piece), with the supporting internal thread hole 4.1 of plastics trip bolt 8, with the binding thread through hole 4.2 that the center conductor of DINd type female connector is supporting, with lower coupling piece drift angle place chamfer 4.3, with the long medium of support, support the supporting medium jack 4.4 of short medium.
The base material of described upper coupling piece 3 and lower coupling piece 4 is aluminium, electroplate, two lower coupling pieces 4 are placed on horizontal plane, form a similar foursquare structure, internal thread hole 4.1 on coupling piece 4 places spacing control medium 7, and ensure that spacing control medium 7 is coaxial with internal thread hole, upper coupling piece 3 is placed on spacing control medium 7(spacing control medium and uses a kind of PEI material PEI Polyetherimide (Polyetherimide), this material ensures not deformation in comparatively large-temperature range) on, and upper coupling piece 3 intersects with lower coupling piece 4 one-tenth and places, through hole 3.1 on upper coupling piece 3 is coaxial with the internal thread hole 4.1 on spacing control medium 7 and lower coupling piece 4.By plastics trip bolt 8 by upper coupling piece 3, spacing control medium 7 and lower coupling piece 4 carry out fastening.Upper coupling piece 3, spacing control medium 7, lower coupling piece 4 and plastics trip bolt 8 be composition coupling piece recombiner unit jointly, as shown in Figure 5.
Concrete assembling process of the present invention: coupling piece 4, spacing control medium under coupling piece 3, electric bridge on electric bridge
7 and plastics trip bolt 8 form recombiner unit structure as shown in Figure 5, the thickness of spacing control medium is 0.9mm ± 0.02mm; Coupling piece in electric bridge is exactly the coupling amount being carried out control signal by thickness.Electric bridge, owing to being a kind of close coupling, controls very responsive to spacing.To the plug 5.2 of long medium 5 be supported and match with the jack 1.7 on cavity 1, the plug 6.2 supporting short medium 6 is matched with jack 1.2 on cavity 1, and the recombiner unit of the electric bridge coupling piece of composition is placed on and supports long medium 5 and support on short medium 6, plug 5.2 and 6.2 supporting on coupling piece, with the medium jack 3.4 on upper coupling piece 3, medium jack 4.4 on lower coupling piece 4 matches, and ensure that coupling piece recombiner unit is parallel with cavity 1 bottom surface, fixing threaded hole 3.2 on coupling recombiner unit, 4.2 and the internal thread hole 2.3 of DINd type female connector 2 coaxial, be connected with DINd type female connector 2 by the coupling piece recombiner unit of silver-plated screw 9 by composition, electric bridge coupling piece recombiner unit supports long medium 5 in placement and supports short medium 6, ensure that the plug 5.2 supporting long medium 5 matches with the jack of coupling piece recombiner unit, the plug 6.2 supporting long medium 6 matches with the jack of coupling piece recombiner unit, after fastening plastic screw 8, by screw 15, cavity 1 and inner cover plate 10 are carried out fastening, rubber ring 11 is placed on the waterproof groove of cavity 1, by screw 15, outer cover plate 12 and cavity 1 are carried out fastening.