CN212542636U

CN212542636U - High-performance cavity phase shifter applied to 5G system

Info

Publication number: CN212542636U
Application number: CN202021679124.4U
Authority: CN
Inventors: 李丹妮; 洪何知; 崔晗璐; 耿景龙; 张静
Original assignee: Kunshan Den Gyo Communication Equipment Co ltd
Current assignee: Kunshan Den Gyo Communication Equipment Co ltd
Priority date: 2020-08-12
Filing date: 2020-08-12
Publication date: 2021-02-12
Anticipated expiration: 2030-08-12
Also published as: WO2022033254A1

Abstract

The utility model discloses a be applied to high performance cavity of 5G system and move looks ware, including moving the looks ware cavity, move and be equipped with the PCB board in the looks ware cavity, be equipped with the phase shift stripline on the PCB board, the both sides of PCB board are equipped with the medium apron, the medium apron with PCB board sliding connection, the medium apron still is connected with a pull rod, the width of moving the looks ware cavity is less than 1/4 lambda, and the lambda is for adopting this cavity to move the antenna working frequency channel central frequency wavelength of looks ware, be equipped with the opening on the medium apron, the opening is close to move the phase shift stripline. The cavity width of the phase shifter cavity is less than 1/4 wave length, so that the resonance frequency of the phase shifter cavity is beyond the designed use frequency, and the designed parts and the antenna work normally.

Description

High-performance cavity phase shifter applied to 5G system

Technical Field

The utility model relates to a wireless communication technology field sets up a high performance cavity that is applied to 5G system very much and moves looks ware.

Background

In the coverage of a mobile communication network, an electrically-tunable base station antenna is one of key devices for network coverage, and a phase shifter is a core component of the electrically-tunable base station antenna, and the performance of the phase shifter directly determines the performance of the electrically-tunable antenna and influences the quality of network coverage, so that the design of a cavity phase shifter with low loss and stable performance becomes an important factor. When designing the phase shifter, the resonant frequency of the phase shifter cavity is very important, because the resonant frequency of the phase shifter cavity may coincide with the frequency of the antenna, which may affect the use of the antenna. Along with the popularization of 5G mobile communication networks, the ultra-high frequency band frequency spectrum is expanded and used, particularly, the working frequency band of the cavity phase shifter is 3.4 GHz-5.0 GHz, the existing phase shifter cavity design of the highest frequency band used by a 5G base station antenna SUB-6G in mobile communication hardly meets the technical requirements, and therefore a high-performance cavity phase shifter suitable for ultra-high frequency needs to be designed.

SUMMERY OF THE UTILITY MODEL

For overcoming the not enough among the above-mentioned prior art, the utility model aims to provide a move looks ware cavity resonant frequency outside antenna frequency operating rate, be applicable to the high performance cavity of super high frequency and move looks ware.

The utility model provides a be applied to high performance cavity of 5G system and move looks ware, is including moving the looks ware cavity, move and be equipped with the PCB board in the looks ware cavity, be equipped with the merit on the PCB board and divide and move the phase stripline, the both sides of PCB board are equipped with the medium apron, and the medium apron symmetry of both sides sets up, the medium apron with PCB board sliding connection, the medium apron still is connected its characterized in that with a pull rod: the width of the phase shifter cavity is smaller than 1/4 lambda, lambda is the central frequency wavelength of the antenna working frequency band of the phase shifter adopting the cavity, and the medium cover plate is provided with an opening which is close to the phase shifting strip line.

Preferably, a sliding groove is formed in the PCB, the medium cover plate is connected with the sliding groove in the PCB through a connecting piece, and the connecting piece can slide in the sliding groove.

Preferably, the PCB is provided with a phase-shifting strip line in an undulating structure.

Preferably, the phase shift strip line has a V-shaped or arc-shaped structure.

Preferably, the power division on the PCB board includes a two-stage power division, the first-stage power division is an equipotent division with one division into three, wherein outlets of the two air strip lines are respectively connected to the first phase shifting section, the tail end of the phase shifting section arranged at the first section is respectively connected to a one division into two unequal power divisions of the second stage, and wherein the energy smaller port is respectively connected to the second phase shifting section.

Preferably, the housing of the phase shifter cavity is tin plated.

Preferably, the opening is a comb-shaped opening, a rectangular opening or a circular opening.

The technical scheme has the following beneficial effects: the cavity width of the phase shifter cavity is less than 1/4 wave length, so that the resonance frequency of the phase shifter cavity is beyond the designed use frequency, and the designed parts and the antenna work normally.

Drawings

Fig. 1 is a schematic structural diagram of the external shape of the embodiment of the patent.

Fig. 2 is a schematic diagram of the internal structure of the embodiment of the present patent.

Fig. 3 is a schematic structural diagram of a PCB according to an embodiment of the present invention.

FIG. 4 is a schematic diagram of a phase-shifting stripline according to the embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a dielectric cover plate according to an embodiment of the present disclosure.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known technical solutions have not been shown or described in detail to avoid obscuring aspects of the present invention.

As shown in fig. 1, 2, this patent discloses a high performance cavity of being applied to 5G system moves looks ware, it is including moving looks ware cavity 1, the central point of moving the inside narrower both sides of looks ware cavity 1 puts, be equipped with the slot that extends along the cavity direction, be equipped with PCB board 2 in the slot, coaxial line wiring hole and circular port have been seted up in one side of slot, coaxial line wiring hole and circular port correspond PCB board 2 and go up line interface position, still be equipped with the phase-shifting stripline on PCB board 2, the phase-shifting stripline is two-sided microstrip line, this PCB board 2 both sides microstrip line switches on through the metallization via hole, PCB both edges are fixed in the inside slot of cavity.

The two sides of the PCB 2 are respectively provided with the medium cover plates 3, the two medium cover plates 3 are symmetrically arranged, the medium cover plates 3 are in sliding connection with the PCB 2, as an optimal implementation mode, a sliding groove 25 (shown in figure 3) can be arranged on the PCB 2, the medium cover plates 3 are connected with the sliding groove 25 on the PCB 2 through connecting pieces, and the connecting pieces can slide in the sliding grooves to further drive the medium cover plates 3 to slide along the PCB. The medium cover plate 3 is provided with an opening 31, and the opening 31 is close to the phase shift strip line to form an air strip line. One end of the dielectric cover plate 3 is connected with a pull rod 4, and the position of the dielectric cover plate on the PCB, namely the phase position of the wire outlet, can be changed by pulling the pull rod, so that the radiation direction of the antenna is changed.

The width of the cavity of the phase shifter is less than 1/4 lambda, which is the central frequency wavelength of the working frequency band of the antenna using the cavity phase shifter, and by adopting the structure, the resonant frequency of the cavity of the phase shifter can be beyond the designed use frequency, so that the designed part and the antenna can work normally.

As a preferred embodiment, the phase-shifting strip line on the PCB 2 is in an undulating structure (as shown in fig. 4), such as a V-shaped or arc-shaped structure, which is superior to the conventional linear strip line structure of the phase shifter, and is beneficial to shortening the length of the phase-shifting section and realizing the miniaturization of the phase shifter in the length direction. The openings 31 in the media cover 3 may be configured as comb-shaped openings, rectangular openings, or circular openings (as shown in fig. 5).

As shown in fig. 3, as a preferred embodiment, the PCB includes two-stage power divider, the first stage of which is a one-to-three equal power divider 21, two outlets of air stripline in the one-to-three equal power divider 21 are respectively connected to a first phase shifting section 22, and a one-to-two unequal power divider 23, which is arranged at the end of the first phase shifting section and is connected to a second phase shifting section, respectively, wherein a smaller energy port is connected to a second phase shifting section 24 and is far away from the first phase shifting section, and the designed cavity phase shifter is designed such that the outgoing line mode is an ordered outgoing line, thereby solving the problems of overlong network line, complex wiring and poor consistency in the conventional wireless outgoing line mode.

The surface of the phase shifter cavity 1 is plated with tin, so that when a cable is fed, the cable feed core is connected with a phase shifter wire outlet, and the cable outer conductor is welded on the cavity outer cavity, so that the transmission cable is well connected with the phase shifter cavity.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a be applied to high performance cavity of 5G system and move looks ware, is including moving the looks ware cavity, move and be equipped with the PCB board in the looks ware cavity, be equipped with the merit on the PCB board and divide and move the phase stripline, the both sides of PCB board are equipped with the medium apron, and the medium apron symmetry of both sides sets up, the medium apron with PCB board sliding connection, the medium apron still is connected its characterized in that with a pull rod: the width of the phase shifter cavity is smaller than 1/4 lambda, lambda is the central frequency wavelength of the antenna working frequency band of the phase shifter adopting the cavity, and the medium cover plate is provided with an opening which is close to the phase shifting strip line.

2. The high performance cavity phase shifter applied to 5G system as claimed in claim 1, wherein: the PCB is provided with a sliding groove, the medium cover plate is connected with the sliding groove on the PCB through a connecting piece, and the connecting piece can slide in the sliding groove.

3. The high performance cavity phase shifter applied to 5G system as claimed in claim 1, wherein: the PCB is provided with a phase-shifting strip line in a wavy structure.

4. The high performance cavity phase shifter applied to 5G system as claimed in claim 3, wherein: the phase shift strip line is of a V-shaped or arc-shaped structure.

5. The high performance cavity phase shifter applied to 5G system as claimed in claim 1, wherein: the PCB comprises two stages of power distribution, the middle of the first stage of power distribution is divided into one-to-three equal power distribution, wherein two air strip line outlets are respectively connected with a first phase shifting section, the tail end of the first phase shifting section is respectively connected with one-to-two unequal power distribution of the second stage, and an energy smaller port is respectively connected with a second phase shifting section.

6. The high performance cavity phase shifter applied to 5G system as claimed in claim 1, wherein: and a shell of the phase shifter cavity is plated with tin.

7. The high performance cavity phase shifter applied to 5G system as claimed in claim 1, wherein: the opening is a comb-shaped opening, a rectangular opening or a circular opening.