CN2631054Y

CN2631054Y - Broadband high-power distributor

Info

Publication number: CN2631054Y
Application number: CN 03246854
Authority: CN
Inventors: 张跃军; 杨进峰
Original assignee: Comba Telecom Systems Guangzhou Co Ltd
Current assignee: Comba Telecom Systems Guangzhou Co Ltd
Priority date: 2003-06-03
Filing date: 2003-06-03
Publication date: 2004-08-04
Anticipated expiration: 2013-06-03

Abstract

The utility model discloses a broadband and high power distributor, which includes an outer conductor and an inner conductor. The invention is characterized by that the outer conductor and inner conductor are coaxial structure; meanwhile the outer conductor is hollow arbor circular cylinder and the inner conductor located in the inner outer conductor is stepladder circular cylinder. Furthermore, the input port and the output port are fixed with the outer conductor by a connector, and then the cavity between the outer conductor and the inner conductor is formed. The power distributor by using the above structure has the advantages of having no low power resistor, high enduring ability of power capacity, no probability of being damaged, wide working frequency band, and being unease to short circuit since the inner and outer conductor are fixed by the connector to keep the cavity between both.

Description

The high-power distributor of a kind of broadband

Technical field

The utility model relates to the high-power distributor of a kind of broadband, and its effect is mobile communication signal to be carried out power equivalent distribute, to realize distribution on a large scale and to cover.Be applicable to Digital Clustering 800MHz, CDMA800MHz, GSM900/1800MHz, communication systems such as 3-G (Generation Three mobile communication system) (3G) and wireless lan (wlan).

Background technology

Along with development of Communication Technique, and the multiband compatibility of various types of communication system, require power splitter working band wide ranges, power capacity big.According to present mature technology, what power splitter adopted is planar design, and the surface evaporation one deck at medium approaches metal usually, or engraves the figure that needs by photoetching technique on the metal clad plate, with this signal transmission path.Its advantage is that making is simple, cost is low, is easy to realize; Shortcoming is that working band is narrow, power capacity is little.The most fatal shortcoming is that power capacity is little, generally at 15W-30W.Because adopt small-power resistance to realize impedance matching and circuit balancing between its output port, when arbitrary port open of output port or short circuit, resistance is very easily burnt out, and causes whole power splitter to damage.

Summary of the invention

It is wide that the utility model purpose provides a kind of working band, the big and non-damageable power divider of power capacity.

The technical solution of the utility model is achieved in that the high-power distributor of this broadband, comprise outer conductor and inner wire, described outer conductor and inner wire are coaxial configuration, outer conductor is a hollow circuit cylinder, inner wire is stepped cylinder, be positioned at outer conductor inside, with connector that input port and output port is coaxial fixing with outer conductor, form the cavity between outer conductor and the inner wire.

Adopt the utility model of said structure to adopt metal material as internal and external conductor, air is made medium; It has following advantage:

1, do not have small-power resistance, it is big to bear power capacity, does not have impaired possibility;

2, working band wide ranges;

3, its internal and external conductor is fixed by two terminal adapters, keeps cavity between the two, is difficult for short circuit.

Description of drawings

Below in conjunction with drawings and Examples the utility model is described in further detail:

Fig. 1 is embodiment N-K type two power splitter sectional structure charts of the present utility model

Fig. 2 is the left view of Fig. 1;

Fig. 3 is the inner wire structural representation of the foregoing description of the present utility model;

Fig. 4 is embodiment N-K type three power splitter sectional structure charts of the present utility model

Fig. 5 is the left view of Fig. 4;

Fig. 6 is the inner wire structural representation of the foregoing description of the present utility model;

Fig. 7 is embodiment N-K type four power splitter sectional structure charts of the present utility model

Fig. 8 is the left view of Fig. 7;

Fig. 9 is the inner wire structural representation of the foregoing description of the present utility model;

Figure 10 makes composition for another embodiment D-K type three power splitter sections of the present utility model

Figure 11 is the left view of Figure 10;

Figure 12 is the inner wire structural representation of the foregoing description of the present utility model;

Figure 13 makes composition for another embodiment D-K type two power splitter sections of the present utility model;

Figure 14 makes composition for another embodiment D-K type four power splitter sections of the present utility model.

Among the above-mentioned figure:

1---N-K type two power splitter outer conductors

2---N-K type two power splitter inner wires

3---N-K type connector 3-1 connector thread jacket, 3-2 core bar

4---the end front baffle board of outer conductor

1 '---D-K type outer conductor 2-1---inner wire end connects screw

Embodiment

As Fig. 1～shown in Figure 3, power divider of the present utility model is made up of inner wire 2, outer conductor 1 and connector 3, and outer conductor adopts aluminium alloy, and inner wire adopts brass, and the inner wire of outer conductor internal chamber wall and connector adopts silver plating process; Connector 3 is made of thread jacket 3-1, core bar 3-2, and core bar 3-2 is fixed in the overcoat 3-1 by insulator 3-3, and thread jacket 3-1 and outer conductor 1 end open hole are spirally connected, and the set hole in core bar and inner wire end is connected.Between internal and external conductor with air as blank medium; The connector that the outer conductor input port connects in the present embodiment is 1, the outer conductor output port is relatively set with 2 connectors up and down, connector is connected with internal and external conductor 1,2 by the connecting hole 2-1 that outer conductor output port relative direction and inner wire corresponding position have, and constitutes two power splitters.Outer conductor output axial port is provided with plate washer.

Fig. 4-Fig. 9 is described to be different embodiment of the present utility model, and the connector of its output is respectively 3,4, thereby constitutes three power splitters, four power splitters.Three power splitters are for respectively having three connecting holes in outer conductor output port relative direction and the axial inner wire corresponding position that reaches, and 3 connectors that connect in the hole are for being oppositely arranged up and down and axially being provided with; Four power splitters are in outer conductor output port relative direction, vertical direction, axially reaching the inner wire respective direction respectively has four connecting holes, 4 connectors that connect in the hole in for be oppositely arranged up and down, vertical direction setting, axial setting.

Figure 10-Figure 14 is other embodiment of the present utility model, adopted the connector dissimilar in the embodiment with the foregoing description, be the D-K type, its primary structure is similar to above-mentioned other embodiment, wherein, Figure 11-Figure 12 is three merit separation structures, and Figure 13 is two merit separation structures, and Figure 14 is four merit separation structures.

Key technology of the present utility model is the length and the diameter of length with intracavity diameter, the different impedance sections of inner wire of outer conductor.These parameters directly influence the every performance index of the utility model.

In the practical application, the normal impedance of power splitter input of the present utility model, output port is 50 Ω.Two, three, four power splitters have 2,3,4 output ports respectively, and the impedance of inner wire is respectively 50 * 1/2 Ω after the output port parallel connection, 50 * 1/3 Ω, 50 * 1/4 Ω.For with the fine coupling of impedance (50 Ω) of input port, the impedance conversion of inner wire should be smoothly transitted into 50 Ω.For this reason, the length of the different impedance sections of inner wire and diameter must pass through rigorous theoretical analysis, and well-designed and optimization could arrive the performance index requirement of expection.

Experimental results show that, this utility model has good technical performance: working band 800MHz～2500MHz, and power capacity＞300W inserts loss＜0.05dB, voltage standing wave ratio＜1: 1.15 will obtain using very widely in the mobile communication signal compartment system.

Claims

1, the high-power distributor of a kind of broadband, comprise outer conductor and inner wire, it is characterized in that, described outer conductor and inner wire are coaxial configuration, outer conductor is a hollow circuit cylinder, and inner wire is stepped cylinder, and inner wire is positioned at outer conductor inside, by outer conductor input port and connector that output port is provided with that inner wire and outer conductor is coaxial fixing, be formed with cavity between outer conductor and the inner wire.

2, the high-power distributor of broadband according to claim 1, it is characterized in that described connector is made of thread jacket, core bar, core bar is fixed in the overcoat by insulator, thread jacket and outer conductor end open hole are spirally connected, and the set hole in core bar and inner wire end is connected.

3, the high-power distributor of broadband according to claim 1 is characterized in that, the connector that described outer conductor input port connects is 1, and it is 2 that the outer conductor output port is connected with connector, constitutes two power splitters.

4, the high-power distributor of broadband according to claim 3, it is characterized in that, described outer conductor output port relative direction and inner wire corresponding position have connecting hole, and 2 connectors that connect in the hole are for being oppositely arranged up and down, and outer conductor output axial port is provided with plate washer.

5, the high-power distributor of broadband according to claim 1 is characterized in that, the connector that described outer conductor input port connects is 1, and it is 3 that the outer conductor output port is connected with connector, constitutes three power splitters.

6, the high-power distributor of broadband according to claim 5, it is characterized in that, described three power splitters are for respectively having three connecting holes in outer conductor output port relative direction and the axial inner wire corresponding position that reaches, and 3 connectors that connect in the hole are for being oppositely arranged up and down and axially being provided with.

7, the high-power distributor of broadband according to claim 1 is characterized in that, the connector that described outer conductor input port connects is 1, and it is 4 that the outer conductor output port is connected with connector, constitutes four power splitters.

8, the high-power distributor of broadband according to claim 7, it is characterized in that, described four power splitters are in outer conductor output port relative direction, vertical direction, axially reaching the inner wire respective direction respectively has four connecting holes, 4 connectors that connect in the hole in for be oppositely arranged up and down, vertical direction setting, axial setting.