CN2694509Y

CN2694509Y - Power distributor

Info

Publication number: CN2694509Y
Application number: CN 200420041604
Authority: CN
Inventors: 杨文哲; 马军昌
Original assignee: XIAN FUSHIDA SCIENCE AND TECHNOLOGY Co Ltd
Current assignee: XIAN FUSHIDA SCIENCE AND TECHNOLOGY Co Ltd
Priority date: 2004-03-02
Filing date: 2004-03-02
Publication date: 2005-04-20
Anticipated expiration: 2014-03-02

Abstract

The utility model relates to a power distributor which has the advantages of simple process technology, low production cost, reliable contact, stable signal transmission and low insertion loss. The utility model comprises a cavity body of the sectional material; a radio frequency connector is installed on the cavity body of the sectional material; a soldering board for the printed circuit is installed in the cavity body of the sectional material; a flat mill at the rear part of the inner conductor of the radio frequency connector extends out; a mill extends outside the rear part of the outer conductor is in the shape of a notch; and a fastening groove is formed by the flat mill at the rear part of the inner conductor and the mill. The soldering board for the printed circuit is fastened in the fastening groove; the inner conductor of the radio frequency connector is welded with the microstrip of the soldering board for the printed circuit; and the outer conductor is welded on the bottom surface of the soldering board for the printed circuit.

Description

Power divider

One, technical field:

The utility model relates to a kind of microwave transmission device, especially relates to a kind of power divider.

Two, background technology:

Power divider is in microwave circuit one road input signal energy to be divided into the device that two-way or multichannel are exported equal or unequal energy, also can also can be described as mixer this moment conversely with synthetic one tunnel output of multiple signals energy.Should guarantee certain isolation between the output port of a power splitter.The equivalence that power splitter is generally energy distributes, and by the cascade of impedance conversion line and the collocation of isolation resistance, has very wide frequency bandwidth characteristics.It is 2 the tunnel, the 3 road and 4 the tunnel that power splitter distributes way substantially, can form the multichannel power division by their cascade, if be equipped with not five equilibrium power splitter or coupler again, then forms the special power division of multichannel.Power divider is mainly used in the communication indoor distributed system; GSM, CDMA, WCDMA, base station and direct discharging station, wireless local area; Communication test equipment etc. play the microwave signal shunt or close the road effect, and consumption is very big.This product belongs to microwave component, has certain technology content, and its performance requirement is very high.Because cavity processing technology complexity, product price is higher.

The at present domestic existing numerous manufacturers of power splitter.But on the power divider structure that they produce many shortcomings are arranged, 1. cavity all processes through turnning and milling with aluminium sheet or aluminium bar; Earlier the thick bar of a joint is cut into pancake shape blank with blanking tool, falls unnecessary surplus with lathe turning, make its thickness reach requirement, mill into square with milling machine again, empty inner chamber, tapping at last punches.This processing technology complexity, waste of material is serious, the percent defective height, the production cycle is long, and finished surface need pass through sanding and polishing and electroplating processes, and cost is high.2. between inner printed circuit weldering plate bottom surface and the cavity, be screwed between cavity and the radio frequency connector shell, pressured close contact mode conducting electrical signals causes transmission line long, and it is unreliable to contact, and the insertion loss is big.

Three, utility model content:

The utility model provides a kind of power divider in order to solve the weak point in the above-mentioned background technology, and its processing technology is simple, and production cost is low, and contact is reliable, steady signal transmission, and the insertion loss is little.

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

A kind of power divider, its special character is: comprise the section bar cavity, on the section bar cavity radio frequency connector is housed, printed circuit weldering plate is housed in the section bar cavity, microstrip line welding on radio frequency connector inner wire and the printed circuit weldering plate, the bottom surface welding of outer conductor and printed circuit weldering plate.

Draw-in groove of the common formation of above-mentioned radio frequency connector inner wire afterbody and outer conductor afterbody welds integrated circuit board in draw-in groove with printed circuit.

Above-mentioned radio frequency connector inner wire afterbody mills flat stretching out, and the outer conductor afterbody stretches out and mills into nick shaped, mills draw-in groove of flat common formation with the inner wire afterbody, and printed circuit is welded integrated circuit board in draw-in groove.

Above-mentioned section bar can be the aluminum alloy square pipe profile.

Above-mentioned section bar cavity two ends are provided with cover plate.

Compared with prior art, the advantage and the effect that the utlity model has are as follows:

The utility model cavity utilizes the aluminum alloy square pipe profile directly to be cut into type processing punching, and is in light weight, economical with materials, and processing technology is simple, processes succinct cycle weak point, and percent defective is low, and production cost is low.Outer surface reduces operation and cost without sanding and polishing and electroplating processes.The price that section bar is manufactured cavity only is the 10%-20% that the aluminium bar material is manufactured the cavity price.The aluminum alloy square pipe profile is the finishing materials, the material source abundance.

2, the bottom surface welding of the utility model outer conductor and printed circuit weldering plate, call wire is short out, and contact is reliable, steady signal transmission, the insertion loss is little.Electric property is than all increasing in the past.

3, the utility model Costco Wholesale is low, compares with similar products at home and abroad, has more competitive advantage when performance is close.

Four, description of drawings:

Fig. 1 is a structure cutaway view of the present utility model;

Fig. 2 is an overall structure schematic diagram of the present utility model;

Fig. 3 is connector and a printed circuit board (PCB) Welding Structure schematic diagram in the utility model.

Five, embodiment:

Referring to Fig. 1, Fig. 2, power divider is by radio frequency connector 1, and printed circuit welds plate 2, cavity 3, and cover plate 4 and screw 5 five parts are formed.Directly the aluminum alloy square pipe profile is cut into Len req, cavity 3 is manufactured in the processing punching, and radio frequency connector 1 is installed on cavity 3, and is fastening with screw 5; Cavity 3 two ends are provided with cover plate 4.Referring to Fig. 1, Fig. 3, connector inner wire 6 afterbodys mill and flatly stretch out about 3 millimeters, and the outer conductor afterbody stretches out about 3 millimeters and mills into nick shaped, mills draw-in groove of flat common formation with the inner wire afterbody, printed circuit is welded plate 2 be stuck in the draw-in groove.Microstrip line welding on connector inner wire and the printed circuit weldering plate forms solder joint 7, and outer conductor 9 and the bottom surface welding that printed circuit welds plate 2 form solder joint 8.

During real work, the radio frequency connector on the power divider reliably is connected with microwave transmission device, microwave signal is by the internal and external conductor transmission of radio frequency connector; Microstrip line welding on inner wire and the printed circuit weldering plate, signal is through the microstrip line transmission; The bottom surface welding of outer conductor and printed circuit weldering plate, printed circuit weldering plate underrun solder joint reliably is connected steady signal transmission with the connector outer conductor.

Claims

1, a kind of power divider, it is characterized in that: comprise section bar cavity (3), radio frequency connector (1) is housed on the section bar cavity (3), printed circuit weldering plate (2) is housed in the section bar cavity (3), radio frequency connector inner wire (6) welds with the microstrip line that printed circuit welds on the plate (2), the bottom surface welding of outer conductor (9) and printed circuit weldering plate (2).

2, power divider according to claim 1 is characterized in that: described section bar is the aluminum alloy square pipe profile.

3, power divider according to claim 2 is characterized in that: described radio frequency connector inner wire (6) afterbody and outer conductor (9) afterbody form a draw-in groove jointly, printed circuit is welded plate (2) be stuck in the draw-in groove.

4, power divider according to claim 3, it is characterized in that: described radio frequency connector inner wire (6) afterbody mills flat stretching out, outer conductor (9) afterbody stretches out and mills into nick shaped, mills draw-in groove of flat common formation with inner wire (6) afterbody, printed circuit is welded plate (2) be stuck in the draw-in groove.

5, power divider according to claim 4 is characterized in that: described section bar cavity (3) two ends are provided with cover plate (4).