CN219017884U

CN219017884U - Phase shifter

Info

Publication number: CN219017884U
Application number: CN202223102475.0U
Authority: CN
Inventors: 赵亮
Original assignee: Suzhou Talent Microwave Technology Co ltd
Current assignee: Suzhou Talent Microwave Technology Co ltd
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2023-05-12
Anticipated expiration: 2032-11-22

Abstract

The utility model provides a phase shifter, and relates to the technical field of phase shifter equipment. The phase shifter comprises a shell, an inner cavity is formed in the middle of the inner side of the shell, a bracket is slidably connected to one side of the middle of the inner cavity, steel pipes are arranged at the upper end and the lower end of the other side of the middle of the inner cavity, one end of the inner cavity is connected with one end of a screw rod in a threaded mode, the other end of the screw rod penetrates through the middle of the bracket and extends outwards, an adjusting knob is arranged in the middle of one side of the shell, and one end of the adjusting knob is fixedly connected with one end of the screw rod. The phase modulation connector combines the phase modulation principle of the cable, and the physical length of the inner conductor and the outer conductor is adjusted, so that the electric length of the cable assembly is changed, the phase adjustment is realized, an integral device is formed through integrating the phase modulation cable assembly, and the bracket and other equipment in the shell are driven to slide through precise thread feeding, so that the purpose of continuous phase modulation is achieved.

Description

Phase shifter

Technical Field

The utility model relates to the technical field of phase shifter equipment, in particular to a phase shifter.

Background

A device in which the phase shifter is able to adjust the phase of the wave, any transmission medium introducing a phase shift to the wave propagating therein, which is the principle of early analog phase shifters; the digital phase shift is realized by utilizing A/D, D/A conversion after the development of the modern electronic technology, and the digital phase shift is a discontinuous phase shift technology, but is characterized by high phase shift precision, and the phase shifter has wide application in the fields of radar, missile attitude control, accelerators, communication, instruments, even music and the like.

The existing phase modulation cable assembly is more limited in the connector, the phase adjustment is realized through the physical length of the inner conductor and the outer conductor of the cover surface connector, but is limited in the installation space, so that the phase adjustment range of the cable assembly is limited, the existing phase modulation cable assembly can only be adjusted in advance outside a case, the existing phase modulation cable assembly can be installed inside a system after being adjusted, the case cannot be adjusted again once being assembled, the phase modulation cable assembly is very inconvenient to use, and the phase accuracy is poor due to too coarse, so that a phase shifter is proposed by a person skilled in the art to solve the technical problems.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides the phase shifter, which solves the problem of radio frequency microwave phase adjustment.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the phase shifter comprises a shell, the inboard middle part of casing is provided with the inner chamber, middle part one side sliding connection of inner chamber has the bracket, the lower extreme all is provided with the steel pipe on the middle part opposite side of inner chamber, the one end middle part threaded connection of inner chamber is in the one end of lead screw, the other end of lead screw runs through the middle part of bracket and outwards extends, one side middle part of casing is provided with adjust knob, just adjust knob's one end and the one end fixed connection of lead screw, the middle part upper and lower extreme that adjust knob one side was kept away from to the bracket all is provided with half hard cable, the cable heart yearn in the half hard cable passes through welded mode and welds the one end fixed connection of needle, just the other end that welds the needle all extends to the inside of steel pipe, all be provided with the air line on the welding needle.

Preferably, the upper end and the lower end of the shell are provided with a plurality of fixed grooves at equal intervals near the edges, the middle part of the front end of the shell is provided with a sealing cover, and the edges of the sealing cover are connected with the periphery of the middle part of the shell through connecting bolts.

Preferably, the upper end and the lower end of one side of the shell, which is far away from the adjusting knob, are all connected with mounting seats through bolts, the middle parts of the mounting seats are all fixedly connected with connecting pipes, and external thread walls are arranged on the connecting pipes.

Preferably, the thread pitch of the screw rod is 1mm, the screw rod rotates for one circle, namely 1mm, the physical length is 1mm, and the corresponding phase degree is 1.2 degrees/1 GH.

Preferably, the screw pitch of the screw rod can be adjusted to be 0.5-2mm, and the corresponding phase degree range is enlarged.

Preferably, the outer wall surface of the adjusting knob is provided with a plurality of scale marks at equal intervals, and the head part of the welding needle, which is close to one end of the steel pipe, is subjected to elastic treatment.

Preferably, the shell and the closing cover are made of high-carbon stainless steel.

Working principle: when the user uses, the user can rotate through the adjust knob on the manual rotation casing, and the adjust knob rotates and drives the lead screw and carry out screw thread feed, and the pivoted of lead screw drives the bracket and slides in the inner chamber, drives semi-hard cable and removes when the bracket removes, drives welding needle and air line and enters into in the steel pipe when the semi-hard cable removes, through changing the physical length of air line to change its electric length, with this effect that realizes radio frequency phase variation.

The utility model provides a phase shifter. The beneficial effects are as follows:

1. the phase adjusting function is independently isolated for design, so that a microwave component which is only aimed at phase adjustment is formed, the phase adjusting range can be 360 degrees/GHz, the phase adjusting range is wide, the phase adjusting of the device is stable and precise, the device can be adjusted at any time, and meanwhile, the device also has the advantages of convenience in installation, fixed occupied space and the like during use.

2. According to the utility model, the adjusting knob arranged on the shell can realize that the system is required to be adjusted at any time after being assembled, and the scale marks can be arranged on the adjusting knob, so that the phase degree can be controlled and monitored by adjusting the phase degree by rotating the adjusting knob for one circle.

3. The utility model combines the existing phase modulation connector with the phase modulation principle of the cable, and adjusts the physical length of the inner conductor and the outer conductor, thereby changing the electric length of the cable assembly, realizing the adjustment of the phase, integrating the phase modulation cable assembly into one device, designing the adjusting mechanism to form an integral device, and driving the bracket and other devices in the shell to slide through precise thread feeding, thereby achieving the purpose of continuous phase modulation, and further realizing the effects of precise adjustment and continuous adjustment.

Drawings

FIG. 1 is a right side schematic view of the open state of the present utility model;

FIG. 2 is a left side schematic view of the present utility model in an open state;

FIG. 3 is a schematic view of the rear side structure of the present utility model in a closed state;

fig. 4 is a schematic view of the front side structure of the present utility model in a closed state.

1, a shell; 2. a welding needle; 3. a fixing groove; 4. a screw rod; 5. an adjustment knob; 6. an inner cavity; 7. a bracket; 8. a semi-hard cable; 9. an air line; 10. a steel pipe; 11. a connecting pipe; 12. a mounting base; 13. a connecting bolt; 14. a closure cap.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples:

as shown in fig. 1-4, the embodiment of the utility model provides a phase shifter, which comprises a shell 1, wherein an inner cavity 6 is arranged in the middle of the inner side of the shell 1, a bracket 7 is slidably connected to one side of the middle of the inner cavity 6, steel pipes 10 are respectively arranged at the upper end and the lower end of the other side of the middle of the inner cavity 6, one end of the inner cavity 6 is in threaded connection with one end of a lead screw 4, the other end of the lead screw 4 penetrates through the middle of the bracket 7 and extends outwards, an adjusting knob 5 is arranged in the middle of one side of the shell 1, one end of the adjusting knob 5 is fixedly connected with one end of the lead screw 4, semi-hard cables 8 are respectively arranged at the upper end and the lower end of the middle of one side of the bracket 7, which is far away from the adjusting knob 5, cable cores in the semi-hard cables 8 are fixedly connected with one end of a welding needle 2 in a welding mode, the other end of the welding needle 2 extends into the steel pipes 10, and an air line 9 is respectively arranged on the welding needle 2.

The device is designed by independently isolating the phase adjusting function to form a microwave component only aiming at phase adjustment, the phase adjusting range can realize 360 DEG/GHz, the working frequency of the device depends on the working frequency of a configured connector, for example, the device is configured by an SMA-K type connector, the highest working frequency of the device is 26.5GHz, and the maximum adjusting phase range is 360 DEG.26.5=9540 deg.

And this application adopts simple and easy screw feed mechanism, because screw feed mechanism portion is realized through the screw thread, has advantage that the controllability is strong, the precision is high.

The main principle of the device is that the screw feeding mechanism is matched with the screw rod 4 through the adjusting knob 5, the screw feeding mechanism drives the bracket 7, the semi-hard cable 8, the welding needle 2 and the air wire 9 to synchronously move, and the electric length of the air wire 9 is changed by changing the physical length of the air wire 9, so that the effect of radio frequency phase change is realized.

The upper and lower end of casing 1 is close to edge equidistant and is provided with a plurality of fixed slot 3, and the front end middle part of casing 1 is provided with closing cap 14, and closing cap 14's edge is connected with the middle part department all around of casing 1 through connecting bolt 13, closes casing 1's inside when using through closing cap 14 and connecting bolt 13's cooperation, prevents that steam and dust in the external environment from taking place to gather in inner chamber 6, guarantees the normal use of whole equipment.

The upper and lower ends all are connected with mount pad 12 through the bolted connection about one side middle part that adjust knob 5 was kept away from to casing 1, and the equal fixedly connected with connecting pipe 11 in middle part of mount pad 12 all is provided with the external screw thread wall on the connecting pipe 11, and this equipment is fixed the connecting pipe 11 of wiring through mount pad 12 to through addding the screw thread wall on connecting pipe 11, conveniently adopt sealing nut to seal the gap department of connecting pipe 12 after the wiring, prevent outside dust to enter into inside casing 1.

The thread pitch of the screw 4 is 1mm, the screw 4 rotates for one circle, namely 1mm, the physical length is 1mm, and the corresponding phase degree is 1.2 degrees/1 GH.

The outer wall surface equidistance of adjust knob 5 is provided with a plurality of scale marks, and the head that welding needle 2 is close to steel pipe 10 one end carries out elastic treatment, carries out elastic treatment through the one end head that welding needle 2 is close to steel pipe 10 to make welding needle 2 can fully connect when inserting the inside of steel pipe 10, also can realize sliding, just so solved welding needle 2 in the continuity problem of sliding in-process electricity, if the electricity is discontinuous, will lead to the fluctuation of standing wave.

The design of scale marks is added on the adjusting knob 5, the phase degree can be controlled and monitored by adjusting the adjusting knob 5 by rotating for one circle, the self-locking structural design can be added on the adjusting knob 5, a spanner can be used for tightening a locking nut at the bottom of the adjusting knob 5 after the self-locking structural design is adjusted, thereby realizing the locking function, and the adjusting angle on the adjusting knob 5 can not be changed due to the action of external force after the self-locking structural design is locked, so that the self-locking structural design is convenient for a user to use.

The shell 1 and the closing cap 14 are made of high-carbon stainless steel, and the shell 1 and the closing cap 14 made of high-carbon stainless steel are not easy to rust and damage on the surfaces when the whole equipment is used, and have long service life.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Phase shifter, including casing (1), its characterized in that: the inside middle part of casing (1) is provided with inner chamber (6), middle part one side sliding connection of inner chamber (6) has bracket (7), the middle part opposite side upper and lower ends of inner chamber (6) all are provided with steel pipe (10), the one end middle part threaded connection of inner chamber (6) is in the one end of lead screw (4), the other end of lead screw (4) runs through the middle part of bracket (7) and outwards extends, one side middle part of casing (1) is provided with adjust knob (5), just the one end of adjust knob (5) and the one end fixed connection of lead screw (4), the middle part upper and lower end that adjust knob (5) one side was kept away from to bracket (7) all is provided with half hard cable (8), the cable heart yearn in half hard cable (8) is through welded mode and the one end fixed connection of welding needle (2), just the other end of welding needle (2) all extends to the inside of steel pipe (10), all be provided with air line (9) on welding needle (2).

2. The phase shifter of claim 1, wherein: the upper end and the lower end of the shell (1) are provided with a plurality of fixing grooves (3) at equal intervals near the edge, the middle part of the front end of the shell (1) is provided with a sealing cover (14), and the edge of the sealing cover (14) is connected with the periphery of the middle part of the shell (1) through a connecting bolt (13).

3. The phase shifter of claim 2, wherein: the upper end and the lower end of one side of the shell (1) far away from the adjusting knob (5) are connected with mounting seats (12) through bolts, the middle parts of the mounting seats (12) are fixedly connected with connecting pipes (11), and the connecting pipes (11) are provided with external thread walls.

4. The phase shifter of claim 1, wherein: the screw pitch of the screw rod (4) is 0.5-2mm, the screw rod (4) rotates for one circle, namely 0.5-2mm, the physical length is 0.5-2mm, and the corresponding phase degree is 0.6-2.4 degrees/1 GH.

5. The phase shifter of claim 1, wherein: the outer wall surface of the adjusting knob (5) is provided with a plurality of scale marks at equal intervals, and the head part of the welding needle (2) close to one end of the steel pipe (10) is subjected to elastic treatment.

6. The phase shifter of claim 1, wherein: the shell (1) and the closing cover (14) are made of high-carbon stainless steel materials.