A kind of ultra wide band 1710-2700MHz phase shifter
Technical field
The present invention relates to technical field of communication equipment, are specifically related to a kind of ultra wide band 1710-2700MHz phase shifter.
Background technique
With the rapid development of mobile communication technology, the quantity of base station increases, and density increases, thus bring adjacent cell
Between interference problem it is increasingly prominent.In order to reduce interference, realizes the good covering of antenna, can control the electrical tilt antenna mesh of angle of declination
Before have become the main Types of antenna for base station.
Phase shifter is a kind of microwave device of adjustable transmission phase, thus it be antenna for base station critical component it
One.The problems such as current phase shifter is larger in the prevalence of size, higher cost needs research staff to continue to lift up and improve.
If Chinese Patent Application No. is CN201711401850.2, entitled ultra wide band 1710-2700MHz phase shift
Device, which is characterized in that it includes phase shifter fastener, outer housing and the circuit board being arranged inside, transmission line and medium block, circuit board
On be provided with phase shift block, transmission line is connect with phase shift block, and medium block is movably arranged in phase shift block, and phase shift block includes
The not equal band line of two width, and form phase shifter poor relationship again.The invention is mainly two wide by designing in phase shift block
It is in parallel to spend different band lines, phase shifter is realized using the structure of the medium of two kinds of different-thickness in corresponding two positions with line of medium block
1 point 5, be allowed to be suitable for the antenna of Unit 5 or more.
Summary of the invention
The object of the invention is in order to a kind of structure for solving the deficiency of the prior art and providing it is simple, manufacturing cost
Low, performance increases, suitable for Unit 7 and the ultra wide band 1710-2700MHz phase shifter of the above antenna.
The present invention is that a kind of ultra wide band 1710-2700MHz phase shift is attained in that using following technical solution
Device, which is characterized in that it includes outer housing, phase shift block, transmission line and medium block, and transmission line is connect with phase shift block, is situated between
Mass is movably arranged in phase shift block, and phase shift is achieved the effect that by move media block, and phase shift block includes three strip lines,
Phase shifter poor relationship again is formed by concatenated circuit structure.
As a further illustration of the above scheme, the phase shift block is arranged on pcb board, the phase shift greatly reduces
The cost of device.
Further, the outer housing is provided with outer framework, and outer framework surrounds phase shifter module and medium block is adjacent, and
And press the band line of phase shift block, so that the intermodulation stability and consistency of the phase shifter are very high.
Further, three strip lines of phase shifter module are in and are distributed side by side, and have interval between each other from the top down, medium
The upper and lower end side of block is respectively arranged with bending edge, the edge movable cladding cooperation of bending edge and phase shifter module, so that medium block
It can be moved along the axial direction with line.
Further, the position of corresponding three strip lines of medium block is identical using thickness, the consistent medium block of structure.
Further, phase shifter uses concatenated circuit structure, different according to the number by branch, to form phase shift times
Poor relationship.
The present invention is using the above-mentioned attainable beneficial effect of technical solution:
1, the present invention is mainly made of outer chamber and the phase shift block being arranged inside, outer framework, transmission line and medium sliding block
Phase shifter structure, the phase shift position of phase shifter is made of the band line of 3 cascades, form phase shifter poor relationship again, in pair
Claim structure, structure is simple, and can largely reduce the size of the phase shifter, and ensure that the thickness of medium block
Degree, strengthens the intensity of this phase shifter;
2, the medium position of phase shifter of the invention uses the identical medium of thickness, is guaranteeing phase shifter phase poor relationship again
Under the premise of, using the medium of low-k, significantly reduce cost.
3, phase shifter of the invention surrounds phase shifter module using outer framework, and presses band line, so that the phase shifter
Intermodulation stability and consistency are very high.
4, the design of the phase shifter is the phase shifter using integrated form, the antenna suitable for Unit 7 or more;With same type
Phase shifter compare, the whole design size of the phase shifter is smaller, can guarantee lower cost solution to a certain extent;Entirety is set
Meter aspect, the pcb board of use is inexpensive plate, and the cost of the phase shifter greatly reduces.
Detailed description of the invention
Fig. 1 show front view of the invention.
Fig. 2 show side view of the invention.
Fig. 3 show top view of the invention.
Fig. 4 show structural schematic diagram of the invention.
Description of symbols: 1, outer housing, 1-1, cavity, 1-2, port, 2, circuit board, 3, medium block, 4, phase shift block,
5, outer framework, 5-1, upper frame body, 5-2, lower frame body, 6, pull rod.
Specific embodiment
The technical program is explained in detail below in conjunction with specific embodiment.
As Figure 1-Figure 4, the present invention is a kind of ultra wide band 1710-2700MHz phase shifter, it include outer housing 1 and its
The phase shift block 4 and transmission line and medium block 3 of interior setting, transmission line are connect with phase shift block 4, and medium block 3 is movably arranged on
In phase shift block 4, phase shift block 4 includes the band line of three equivalent widths, and is allowed to form phase shifter times by concatenated mode
Poor relationship, phase shift block are arranged in PCB circuit board 2, and the cost of the phase shifter greatly reduces.Outer housing 1 is provided with two
A cavity 1-1 is movably set with outer framework 5 in cavity, and outer framework surrounds phase shifter module, and presses the band of phase shifter module
Line, so that the intermodulation stability and consistency of the phase shifter are very high.It is provided with sliding slot corresponding with medium block in outer framework, is situated between
Mass is movably arranged in phase shift block, and is in sliding fit with the sliding chute, and the end of medium block 4 is connected with pull rod 6.The present embodiment
In, outer frame body 5 includes upper frame body 5-1, lower frame body 5-2, and phase shift block 4 is clamped between upper and lower framework.
Further, the not equal band line of three width of phase shift block goes to upper and lower distribution, and has interval between each other, is situated between
The upper and lower end side of mass is respectively arranged with bending edge, the edge movable cladding cooperation of bending edge and phase shifter module, so that medium
Block can be moved along the axial direction with line.The position of corresponding three strip lines of medium block uses the identical medium of thickness, certain
It ensure that the phase of the phase shifter poor relationship again in degree;And the medium block is using the dielectric material of low cost, in certain journey
It is reduced costs on degree.
Compared with prior art, the present invention 1, phase shift block includes the band line of three equivalent widths, and pass through concatenated side
Formula is allowed to form phase shifter poor relationship again, can largely reduce the size of the phase shifter, and ensure that medium block
Thickness, strengthen the intensity of this phase shifter;The medium position of phase shifter uses the medium of two kinds of different-thickness, in certain journey
The phase poor relationship, and the dielectric material of medium block use low cost again that ensure that the phase shifter on degree, to a certain degree
On reduce costs;Phase shifter surrounds phase shifter module using outer framework, and presses band line, so that the intermodulation of the phase shifter is steady
Qualitative and consistency is very high.
2, the design of phase shifter is the phase shifter using integrated form, and phase shift block is connected using the band line of three equivalent widths
The position of connection, corresponding three strip lines of medium block is identical using thickness, and the consistent medium of structure realizes the 1 of phase shifter jointly
Divide 7, enables the antenna for being suitable for Unit 7 or more;Compared with the phase shifter of same type, the whole design ruler of the phase shifter
It is very little smaller, it can guarantee lower cost solution to a certain extent;In terms of whole design, the pcb board of use is inexpensive plate, greatly
The big cost for reducing the phase shifter.
What has been described above is only a preferred embodiment of the present invention, it is noted that for those of ordinary skill in the art
For, without departing from the concept of the premise of the invention, various modifications and improvements can be made, these belong to the present invention
Protection scope.