CN218350331U

CN218350331U - Radio frequency power amplifier test fixture

Info

Publication number: CN218350331U
Application number: CN202222030512.5U
Authority: CN
Inventors: 罗进堂; 朱红彬
Original assignee: Chengdu Youxin Microelectronics Co ltd
Current assignee: Chengdu Youxin Microelectronics Co ltd
Priority date: 2022-08-03
Filing date: 2022-08-03
Publication date: 2023-01-20
Anticipated expiration: 2032-08-03

Abstract

The utility model provides a radio frequency power amplifier test fixture includes: mounting a plate; the bottom of the copper base is arranged at the top of the mounting plate; the regulation and control subassembly, the all sides of regulation and control subassembly sets up in the inboard of copper base, the regulation and control subassembly includes two guide posts, two the all sides of guide post set up in the inboard of copper base, two the top fixedly connected with holding frame of guide post. The utility model provides a radio frequency power amplifier test fixture, regulation through three adjusting screw makes the spring expand to the bottom, and then the regulation and control is exerted pressure to the bottom device, three briquetting is exerted pressure to pin and device casing, can make the device carry out good contact with the copper base, can exert pressure to device input and output pin and casing simultaneously, guarantee that good electrical contact reaches the purpose that the protection device is accurate with the assurance index, and can be according to the more fragile product of pressure protection under the product kind adjustment.

Description

Radio frequency power amplifier test fixture

Technical Field

The utility model relates to a radio frequency power amplifier field especially relates to a radio frequency power amplifier test fixture.

Background

Radio frequency refers to radio frequency, namely high frequency, and a common household power amplifier is called an audio power amplifier, and a power amplifier for amplifying the radio frequency, such as a power amplifier of an interphone, a mobile phone and a radio station, and a transmitting signal of a wrapped television station all need to be radiated by an antenna after being amplified by the radio frequency power.

The bottom of the shell is required to be contacted with a test ground in the radio frequency power amplifier test, the input and output pins are required to be contacted with the microstrip line of the test board, and poor contact of any one end can cause device burnout or inaccurate index. The existing radio frequency power amplifier tube test needs to manufacture a pressing block, and the pressing block needs to manually screw a screw down to apply pressure to a pin of a device and only can apply pressure to an input pin and an output pin.

In the related art, the radio frequency power amplifier test requires the bottom of the casing to be in contact with a test ground, and the input/output pins to be in contact with the microstrip line of the test board. However, in the use process of the existing partial test fixture, only the pressure applied to the pins cannot ensure that the bottom of the device shell is in good contact with a test ground, the pressure cannot be regulated, the device shell and surface metal are easily damaged due to overlarge pressure, good electrical connection cannot be ensured due to too small pressure, and the flexibility of the pressure applying device is low during use, so that the position of the applied pressure cannot be conveniently adjusted at any time.

Therefore, it is necessary to provide a test fixture for rf power amplifiers to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a radio frequency power amplifier test fixture has solved in the correlation technique, and current partial test fixture can not guarantee the device bottom and the good regulation and control of contact and pressure well with testing ground when using to and the lower problem of flexibility ratio when biasing means uses.

In order to solve the technical problem, the utility model provides a pair of radio frequency power amplifier test fixture, include: mounting a plate;

the bottom of the copper base is arranged at the top of the mounting plate;

the peripheral side surfaces of the regulating and controlling assembly are arranged on the inner side of the copper base, the regulating and controlling assembly comprises two guide columns, the peripheral side surfaces of the two guide columns are arranged on the inner side of the copper base, the top ends of the two guide columns are fixedly connected with a clamping frame, the bottom of the clamping frame is fixedly connected with three pressing blocks, the top of the clamping frame is provided with an adjusting frame, and the inner side of the adjusting frame is in threaded connection with three adjusting screws;

and the peripheral side surfaces of the pressing components are connected to the inner sides of the two sides of the mounting plate in a sliding manner.

Preferably, it is three the bottom of adjusting screw and the equal fixedly connected with spring in the inboard that is located the alignment jig, the top of alignment jig is provided with the atress frame, and is three the top that is located copper base and the bottom of briquetting is provided with the device.

Preferably, the subassembly of exerting pressure includes two sliders, two the week side sliding connection of slider is in the inboard of mounting panel both sides, two the equal fixedly connected with riser in one side that the slider looks away, two the inboard fixedly connected with diaphragm of riser.

Preferably, the front side of diaphragm sliding connection has the carriage, the top of carriage rotates and is connected with threaded sleeve, threaded sleeve's inner wall threaded connection has the screw rod of exerting pressure.

Preferably, the bottom of the pressure screw penetrates through the top of the sliding frame and extends to the bottom of the sliding frame, the circumferential side of the pressure screw is connected with the inner side of the sliding frame in a sliding mode, and the front face of the sliding frame is provided with a sliding groove.

Preferably, the bottom of the mounting plate is fixedly connected with four supporting rods, and the bottom of each supporting rod is fixedly connected with a bottom plate.

Compared with the prior art, the utility model provides a pair of radio frequency power amplifier test fixture has following beneficial effect:

the utility model provides a radio frequency power amplifier test fixture, regulation through three adjusting screw makes the spring expand to the bottom, and then regulation and control is exerted pressure to the bottom device, three briquetting is exerted pressure to pin and device casing, can make the device carry out good contact with the copper base, can exert pressure to device input and output pin and casing simultaneously, guarantee that good electrical contact reaches the purpose that the protection device is accurate with the assurance index, and can be according to the more fragile product of pressure protection under the product kind adjustment, removal through the riser and then make two sliders slide forward in the inboard of mounting panel, thereby can adjust the front and back position when exerting pressure screw rod uses, slide the carriage on the diaphragm left, and then can adjust the position about when exerting pressure screw rod uses, the effectual flexibility that improves when the device uses, very be convenient for adjust the position of exerting pressure.

Drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of a test fixture for a radio frequency power amplifier provided in the present invention;

FIG. 2 is an enlarged view of the structure of the region A shown in FIG. 1;

FIG. 3 is a schematic structural view of a cross-sectional view of the adjusting bracket shown in FIG. 2;

fig. 4 is a schematic view of the riser of fig. 1.

Reference numbers in the figures: 1. mounting a plate; 2. a copper base; 3. a regulatory component; 31. a guide post; 32. a clamping frame; 33. briquetting; 34. an adjusting bracket; 35. adjusting the screw rod; 36. a spring; 37. a stress frame; 4. a pressure applying assembly; 41. a slider; 42. a vertical plate; 43. a transverse plate; 44. a carriage; 45. a threaded sleeve; 46. a pressure applying screw; 47. a sliding groove; 5. a device; 6. a support bar; 7. a base plate.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

Please refer to fig. 1, fig. 2, fig. 3 and fig. 4, in which fig. 1 is a schematic structural diagram of a preferred embodiment of a test fixture for a radio frequency power amplifier according to the present invention; FIG. 2 is an enlarged view of the structure of the region A shown in FIG. 1; FIG. 3 is a schematic structural view of a cross-sectional view of the adjusting bracket shown in FIG. 2; fig. 4 is a schematic structural view of the vertical plate shown in fig. 1, and a test fixture for a radio frequency power amplifier includes: a mounting plate 1;

the device comprises a copper base 2, wherein the bottom of the copper base 2 is arranged at the top of a mounting plate 1, a device 5 is placed on the copper base 2 during testing, the copper base 2 is arranged on a testing base consisting of a copper plate and a PCB, the copper plate has a heat dissipation function and serves as an electrical grounding point, a PCB microstrip line has impedance matching and electrical connection functions, good contact between an input pin and an output pin of the device 5 and the PCB microstrip line needs to be ensured, and good contact between the bottom of the device 5 and the copper plate of the base is ensured;

the regulating and controlling assembly 3 is characterized in that the peripheral side face of the regulating and controlling assembly 3 is arranged on the inner side of the copper base 2, the regulating and controlling assembly 3 comprises two guide posts 31, the peripheral side faces of the two guide posts 31 are arranged on the inner side of the copper base 2, the top ends of the two guide posts 31 are fixedly connected with a clamping frame 32, the bottom of the clamping frame 32 is fixedly connected with three pressing blocks 33, the top of the clamping frame 32 is provided with an adjusting frame 34, the inner side of the adjusting frame 34 is in threaded connection with three adjusting screw rods 35, and the inner side of the copper base 2 is provided with a groove matched with the two guide posts 31 for installing the guide posts 31;

and the peripheral side surface of the pressing component 4 is connected with the inner sides of the two sides of the mounting plate 1 in a sliding way.

The bottom ends of the three adjusting screws 35 are fixedly connected with springs 36 on the inner sides of the adjusting frames 34, stress frames 37 are arranged on the tops of the adjusting frames 34, and devices 5 are arranged on the bottoms of the three pressing blocks 33 and on the tops of the copper bases 2.

The pressing component 4 comprises two sliders 41, the peripheral side surfaces of the two sliders 41 are connected to the inner sides of the two sides of the mounting plate 1 in a sliding mode, the two sliders 41 are fixedly connected to vertical plates 42 on the two sides which are separated from each other, transverse plates 43 are fixedly connected to the inner sides of the two vertical plates 42, grooves matched with the two sliders 41 for use are formed in the two sides of the mounting plate 1, and the two sliders 41 can slide back and forth.

The front side of horizontal plate 43 is connected with carriage 44 in a sliding manner, the top of carriage 44 is connected with threaded sleeve 45 in a rotating manner, the inner wall of threaded sleeve 45 is connected with pressure applying screw rod 46 in a threaded manner, the inner wall of threaded sleeve 45 is provided with threads matched with pressure applying screw rod 46, and pressure applying screw rod 46 can be driven to move up and down through the rotation of threaded sleeve 45.

The bottom end of the pressing screw 46 penetrates the top of the sliding frame 44 and extends to the bottom of the sliding frame 44, the circumferential side of the pressing screw 46 is slidably connected with the inner side of the sliding frame 44, the front side of the sliding frame 44 is provided with a sliding groove 47, and the sliding groove 47 is matched with the sliding frame 44 for use, so that the sliding frame 44 can slide left and right.

The bottom fixedly connected with four bracing pieces 6 of mounting panel 1, the bottom fixedly connected with bottom plate 7 of four bracing pieces 6.

The utility model provides a pair of radio frequency power amplifier test fixture's theory of operation as follows:

the first step is as follows: when the device is used, the vertical plate 42 is moved forwards, the two sliding blocks 41 slide forwards on the inner side of the mounting plate 1 through the movement of the vertical plate 42, so that the front and rear positions of the pressing screw 46 can be adjusted when the pressing screw 46 is used, the sliding frame 44 slides leftwards on the transverse plate 43, the left and right positions of the pressing screw 46 can be adjusted when the pressing screw 46 is used, the threaded sleeve 45 is rotated, the pressing screw 46 is driven to move downwards through the rotation of the threaded sleeve 45, and the device 5 is pressed through the adjusting and controlling assembly 3;

the second step is that: three adjusting screw 35 is rotated to make three adjusting screw 35 move downwards, and then make spring 36 contract through three adjusting screw 35's removal, make spring 36 expand to the bottom, and then regulation and control are exerted pressure to bottom device 5, and through the use of three briquetting 33, exert pressure to pin and device 5 casing, can make device 5 and copper base 2 carry out good contact.

the spring 36 is expanded to the bottom through the adjustment of the three adjusting screws 35, so that the pressure applied to the device 5 at the bottom is regulated, the three pressing blocks 33 apply pressure to the pins and the shell of the device 5, the device 5 can be in good contact with the copper base 2, the input and output pins and the shell of the device 5 can be pressed at the same time, good electrical contact is guaranteed, the purposes of protecting the device 5 and guaranteeing the accuracy of indexes are achieved, the fragile product can be protected by adjusting the downward pressure according to the product type, the two sliding blocks 41 can slide forwards on the inner side of the mounting plate 1 through the movement of the vertical plate 42, the front and rear positions of the pressing screw 46 during use can be adjusted, the sliding frame 44 can slide leftwards on the transverse plate 43, the left and right positions of the pressing screw 46 during use can be adjusted, the flexibility of the device during use is effectively improved, and the pressing position can be adjusted conveniently.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. The utility model provides a radio frequency power amplifier test fixture which characterized in that includes: a mounting plate (1);

the bottom of the copper base (2) is arranged at the top of the mounting plate (1);

the adjusting and controlling component (3), the peripheral side surfaces of the adjusting and controlling component (3) are arranged on the inner side of the copper base (2), the adjusting and controlling component (3) comprises two guide columns (31), the peripheral side surfaces of the two guide columns (31) are arranged on the inner side of the copper base (2), the top ends of the two guide columns (31) are fixedly connected with a clamping frame (32), the bottom of the clamping frame (32) is fixedly connected with three pressing blocks (33), the top of the clamping frame (32) is provided with an adjusting frame (34), and the inner side of the adjusting frame (34) is in threaded connection with three adjusting screws (35);

and the peripheral side surface of the pressing component (4) is connected to the inner sides of the two sides of the mounting plate (1) in a sliding manner.

2. The radio frequency power amplifier test fixture according to claim 1, wherein springs (36) are fixedly connected to the bottom ends of the three adjusting screws (35) and the inner sides of the adjusting frames (34), stress frames (37) are arranged on the top of the adjusting frames (34), and devices (5) are arranged on the bottoms of the three pressing blocks (33) and the top of the copper base (2).

3. The radio frequency power amplifier test fixture according to claim 1, wherein the pressing component (4) comprises two sliding blocks (41), the peripheral side surfaces of the two sliding blocks (41) are slidably connected to the inner sides of the two sides of the mounting plate (1), the two sliding blocks (41) are fixedly connected to vertical plates (42) on the separated sides, and transverse plates (43) are fixedly connected to the inner sides of the vertical plates (42).

4. The radio frequency power amplifier test fixture of claim 3, wherein the sliding frame (44) is slidably connected to the front surface of the transverse plate (43), a threaded sleeve (45) is rotatably connected to the top of the sliding frame (44), and a pressure applying screw (46) is in threaded connection with the inner wall of the threaded sleeve (45).

5. The RF power amplifier test fixture according to claim 4, wherein a bottom end of the pressure screw (46) penetrates through a top of the sliding frame (44) and extends to a bottom of the sliding frame (44), a peripheral side surface of the pressure screw (46) is slidably connected with an inner side of the sliding frame (44), and a front surface of the sliding frame (44) is provided with a sliding groove (47).

6. The radio frequency power amplifier test fixture according to claim 1, wherein the bottom of the mounting plate (1) is fixedly connected with four support rods (6), and the bottom of the four support rods (6) is fixedly connected with a bottom plate (7).