CN201066714Y

CN201066714Y - Line phase shifter

Info

Publication number: CN201066714Y
Application number: CNU200720172869XU
Authority: CN
Inventors: 徐钦友; 杨建慧
Original assignee: SHOUXIN TIANXIANG TECH Co Ltd BEIJING; BEIJING SKYWAY TECHNOLOGIES Co Ltd
Current assignee: SHOUXIN TIANXIANG TECH Co Ltd BEIJING; BEIJING SKYWAY TECHNOLOGIES Co Ltd
Priority date: 2007-08-30
Filing date: 2007-08-30
Publication date: 2008-05-28
Anticipated expiration: 2017-08-30

Abstract

The utility model discloses a fasciole phase shifter which comprises a principal circuit and a branch circuit of a distributor. The principal circuit and the branch circuit are respectively arranged on different dielectric slabs, the different dielectric slabs are arranged in parallel and the center parts of the different dielectric slabs are hinged. The electrical connecting point between the principal circuit and the branch circuit can be changed through relatively rotating among different dielectric slabs to change the phase length from the principal line to the branch line. The utility model with simple structure, low cost, easy processing and good phase-shifting effect can be widely applicable to various phased-array phase-shifting networks, especially the electric downdip base station antenna with continuously adjustable wave beam in mobile telecommunication system.

Description

Band line phase shifter

Technical field

The utility model relates to a kind of antenna element, relates in particular to a kind of phase shifter of communication base station antenna.

Background technology

In order to realize the optimization of the network coverage, telephone traffic, interference, need its employed antenna for base station reasonably to adjust the beam position of elevation radiation patytern in the mobile communication system, make it point to the angle and do suitable inclination (abbreviation downwards bevel beam) up and down in the horizontal plane direction.And this angle that has a down dip need change along with the variation of applied environment, and the antenna with this function is called wave beam electrical down-tilting antenna for base station (abbreviation electrical tilt antenna).

The operation principle of electrical tilt antenna is exactly the phase place that changes each radiating element of conllinear array antenna by the electronics mode, thereby realizes the variation of compound direction figure greatest irradiation point, realizes adjusting automatically the effect at antenna beam inclination angle.Thereby the device (phase shifter) that changes the radiating element phase place is exactly the critical component of electrical tilt antenna.

Need to use a plurality of phase shifters to form the beam-forming network of phase place continuous variable in the common electrical tilt antenna, realize the wave beam electrical down-tilting of antenna for base station.

In the prior art, phase shifter generally is by changing the lead electrical length and changing the wave beam electrical down-tilting that conductive medium realizes antenna for base station.

There is following shortcoming at least in above-mentioned prior art: complex structure, cost height, be unfavorable for processing.

Summary of the invention

The purpose of this utility model provide a kind of simple in structure, cost is low, the band line phase shifter of easy processing.

The purpose of this utility model is achieved through the following technical solutions:

Band line phase shifter of the present utility model comprises the main line circuit of power splitter and props up line circuit that described main line circuit is located at respectively on the different dielectric-slabs with a line circuit, and different dielectric-slabs be arranged in parallel, and the centre of each dielectric-slab is hinged.

The technical scheme that is provided by above-mentioned the utility model as can be seen, band line phase shifter described in the utility model, the main line circuit and the line circuit that comprise power splitter, described main line circuit is located at respectively on the different dielectric-slabs with a line circuit, different dielectric-slabs be arranged in parallel, and the centre of each dielectric-slab is hinged.With the relative rotation of crossing between the different medium plate, can change the position of the electric connection point between a main line circuit and the line circuit, thereby change the phase lengths of main line to branch line.Simple in structure, cost is low, easy processing.

Description of drawings

Fig. 1 is the structural representation of the utility model band line phase shifter specific embodiment one;

Fig. 2 is that the A-A of this Fig. 1 is to cutaway view;

Fig. 3 is the floor plan of main dielectric-slab in the utility model;

Fig. 4 is the structural representation of the utility model band line phase shifter specific embodiment two;

Fig. 5 is the phase change state diagram one of the utility model band line phase shifter;

Fig. 6 is the phase change state diagram two of the utility model band line phase shifter.

Embodiment

Band line phase shifter of the present utility model, its preferable concrete example is just like Fig. 1, Fig. 2, shown in Figure 3, comprise housing 6, loam cake 15, be provided with two blocks of dielectric-slabs in the housing 6, be respectively a main dielectric-slab 12 and a dielectric-slab 10, main dielectric-slab 12 is provided with the main line circuit 13 of power splitter, and a dielectric-slab 10 is provided with two line circuits 7,8 of power splitter.Prop up on the dielectric-slab 10 and also can establish one or more line circuit, a dielectric-slab 10 also can have polylith.

Different dielectric-

slabs

12,10 be arranged in parallel, and the centre of each dielectric-

slab

12,10 is hinged.The point that a main line circuit 13 and a line circuit 7,8 intersect forms electric connection point, can be to be of coupled connections, and also can be that contact connects.

Concrete main line circuit 13 can pass the center of main dielectric-slab 12, and is disposed radially; Described line circuit 7,8 is arranged circumferentially around the center of a dielectric-slab 10, also can adopt other arrangement as required.

Prop up line circuit 7,8 and can be respectively equipped with two outputs 1,2,4,5 in the edge of dielectric-slab 10.

Main line circuit 13 is provided with connecting circuit 9 at the center hinge contact place of described dielectric-slab 12, and main line circuit 13 is electrically connected with outside line by connecting circuit 9.Specifically connecting circuit 9 radially can be arranged on the dielectric-slab 10, an end of connecting circuit 9 is electrically connected with described main line circuit 13 at center hinge contact place; The other end is main output 3.

Main line circuit 13 and connecting circuit 9 can be located at respectively on the relative face of described main dielectric-slab 12 and a dielectric-slab 10, and like this, main line circuit 13 can compress at described center hinge contact place with connecting circuit 9 and be connected.

Concrete example two as shown in Figure 4, described main line circuit 13 and connecting circuit 9 are located at respectively on a described main dielectric-slab 12 and dielectric-slab 10 face in opposite directions, at this moment, main line circuit 13 can be of coupled connections at described center hinge contact place with connecting circuit 9.

Main line circuit 13, connecting circuit 9 and a line circuit 7,8 can also can be other lines for the band line as required.

A main output 3 and an output 1,2,4,5 can be coaxial line.

As Fig. 5, shown in Figure 6, when main dielectric-slab 12 turns an angle on a dielectric-slab 10, can change the phase place that was clipped to an output 1,2,4,5 from main output in 3 minutes, realized that main output was clipped to the continuous linear change of the physical length between the output 1,2,4,5 in 3 minutes, had reached phase place continually varying purpose.

The utility model is divided into two independent parts by the main line circuit with power splitter with a line circuit, by the position of the tie point between control main line circuit and the branch line, thus the phase lengths of change main line circuit to two line circuit.Simple in structure, easy processing, with low cost, Phasing good, can be widely used in the phase-shift network of various phase arrays, is particularly useful for the continuously adjustable electrical down-tilting antenna for base station of wave beam in the mobile communication system.

The above; it only is the preferable embodiment of the utility model; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection range of the present utility model.

Claims

1. a band line phase shifter comprises the main line circuit of power splitter and props up line circuit, and it is characterized in that, described main line circuit is located at respectively on the different dielectric-slabs with a line circuit, and different dielectric-slabs be arranged in parallel, and the centre of each dielectric-slab is hinged.

2. band line phase shifter according to claim 1 is characterized in that described main line circuit passes the center of described dielectric-slab, and is disposed radially; Described line circuit is arranged circumferentially around the center of described dielectric-slab.

3. band line phase shifter according to claim 2 is characterized in that, described dielectric-slab comprises a main dielectric-slab and a dielectric-slab, and described main dielectric-slab is provided with the main line circuit; Described dielectric-slab is provided with one or more line circuit.

4. band line phase shifter according to claim 3 is characterized in that, described dielectric-slab is provided with two line circuits.

5. according to claim 2,3 or 4 described band line phase shifters, it is characterized in that described main line circuit is provided with connecting circuit at the center hinge contact place of described dielectric-slab, described main line circuit is electrically connected with outside line by described connecting circuit.

6. band line phase shifter according to claim 5 is characterized in that described connecting circuit radially is arranged on described the dielectric-slab, and is electrically connected with described main line circuit at described center hinge contact place.

7. band line phase shifter according to claim 6 is characterized in that, described main line circuit and connecting circuit are located at respectively on the described main dielectric-slab face relative with a dielectric-slab, and the main line circuit compresses at described center hinge contact place with connecting circuit and is connected.

8. band line phase shifter according to claim 6 is characterized in that, described main line circuit and connecting circuit are located at respectively on described main dielectric-slab and the dielectric-slab face in opposite directions, and main line circuit and connecting circuit are of coupled connections at described center hinge contact place.

9. band line phase shifter according to claim 3 is characterized in that, described every line circuit is provided with two outputs.

10. band line phase shifter according to claim 1 is characterized in that, a described main line circuit and a line circuit are the band line.