Stable anti-interference cantilever card radio frequency capable of mass production

Abstract

The utility model relates to the technical field of cantilever card radio frequency, and discloses a stable anti-interference cantilever card radio frequency capable of mass production, which comprises a phase shifter assembly, a radio frequency connector assembly is arranged at the center of the top surface of the phase shifter assembly, and fixing assemblies are respectively arranged at the bottom of the radio frequency connector assembly close to the front end and the rear end. The phase shifter with the radio frequency connector is reasonable in structure, through the integrated design, the radio frequency connector, the phase shifter and other related parts are integrally designed, connection points and intermodulation hidden danger points are reduced, for example, the phase shifter with the radio frequency connector has the advantages that the structure is simple, the cost is low, and the application range is wide. According to the phase shifter, the phase shifter body and the radio frequency connector are connected through the feed cable, and the radio frequency connector is integrally arranged on the cavity of the phase shifter body by using the fixing piece, so that the intermodulation problem caused by using a wiring terminal and the like is avoided, the intermodulation stability of the phase shifter is ensured, integral movement, testing and the like can be realized, the problem can be conveniently analyzed, and the debugging efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cantilever card radio frequency, in particular to a cantilever card radio frequency that can be mass-produced, stable and anti-interference. Background Art

[0002] With the continuous advancement of electronic technology, especially the rapid development of the semiconductor industry and communications technology, the demand for RF signal testing and processing is increasing. Cantilever card RF technology has emerged as a means to meet the needs of high-precision and high-efficiency RF testing. Its development history is closely linked to the evolution of semiconductor manufacturing processes, evolving from simple RF test structures in the early days to today's complex and sophisticated cantilever card RF systems.

[0003] Cantilever RF solutions are limited by their inherent structure and probe length, with the industry consensus being around low-speed signals around 100 MHz. For high-frequency testing, MEMS probes with shorter probe lengths or customized impedance-matching flexible boards with specialized probe tip structures are often used. However, these and similar solutions are relatively expensive to manufacture, and can only be used up to 80 GHz. However, for the Bluetooth consumer products (performance requirements around 3 GHz) targeted by this invention (but not limited to), which require more competitive testing costs, these solutions are not affordable. On the other hand, there are ways to improve the performance of cantilever cards that meet cost requirements, such as replacing the original PCB with an impedance-matched flexible circuit board to enhance testing capabilities. However, there are also situations where the flexible circuit board may lack stability during testing.

[0004] The cantilever structure design and integrated integrated design avoid intermodulation problems caused by the use of terminal blocks, ensure the stability of phase shifter intermodulation, and enable overall movement and testing, making it easier to analyze problems and improve debugging efficiency. The cantilever part of the cantilever card is one of its key structures, which directly affects the contact performance and signal transmission quality between the RF probe and the device under test. The length, width, thickness, and material properties of the cantilever all need to be carefully designed and optimized to ensure stable mechanical support and good electrical connection during the test process, while minimizing signal attenuation and distortion. The RF connector is integrated with related components such as the phase shifter to reduce connection points and intermodulation risk points. For example, a phase shifter with an RF connector connects the phase shifter body and the RF connector through a feed cable, and uses a fixing to integrate the RF connector into the cavity of the phase shifter body. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the shortcomings of the existing technology, the utility model provides a cantilever card radio frequency that can be mass-produced, stable and anti-interference, which solves the problem that the flexible circuit board is not stable enough during the test movement.

[0007] (2) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: a cantilever card RF that can be mass-produced, stable and anti-interference, including a phase shifter assembly, an RF connector assembly is provided at the center of the top surface of the phase shifter assembly, and a fixing assembly is provided at the front and rear ends of the bottom of the RF connector assembly, a feeding cable is connected between the two phase shifter assemblies and the RF connector assembly, the two phase shifter assemblies and the RF connector assembly are installed in contact with each other, reducing the connection points and intermodulation risk points, the feeding cable connects the phase shifter assembly and the RF connector assembly, and the RF connector assembly is integrated into the cavity of the phase shifter assembly using a fixing assembly.

[0009] Optionally, the phase shifter assembly includes a phase shifter body, and a cable output port is provided on a top surface of the phase shifter body near a left edge.

[0010] Optionally, a plurality of adjustment buttons are provided on the front surface of the phase shifter body in a matrix form, and a power switch is provided on the left edge of the front surface of the phase shifter body.

[0011] Optionally, the RF connector assembly includes a connector body, a cable input port is provided on the left side of the top of the connector body, and the front and rear edge lines of the top surface of the connector body are respectively covered with anti-interference plates.

[0012] Optionally, the anti-interference plate is made of a soft magnetic alloy material, which has high saturation magnetic induction intensity, extremely high initial magnetic permeability and maximum magnetic permeability, and extremely low coercive force, and can effectively concentrate and guide magnetic lines of force, playing a key anti-interference role.

[0013] Optionally, the outer shell of the connector body is a PCB board, which adopts a composite structure design, with the base layer being made of FR-material and the outer layers on both sides being made of Rogers material.

[0014] Optionally, the fixing assembly includes two connecting blocks, a socket is provided at the bottom of each connecting block, and a U-shaped plug rod passes through the two connecting blocks.

[0015] Optionally, the feeder cable connects the phase shifter assembly and the RF connector assembly to achieve electrical connection between the two.

[0016] In summary, the technical effects and advantages of the utility model are:

[0017] 1. The utility model has a reasonable structure and adopts an integrated design: the RF connector and related components such as the phase shifter are integrated into an integrated design to reduce the connection points and intermodulation potential points. For example, a phase shifter with an RF connector connects the phase shifter body and the RF connector through a feeding cable, and uses a fixing part to integrate the RF connector into the cavity of the phase shifter body, avoiding the intermodulation problems caused by the use of terminal blocks, etc., ensuring the stability of the phase shifter intermodulation, and realizing overall movement and testing, etc., which is convenient for problem analysis and improves debugging efficiency. A high-performance material composite structure is adopted: for the PCB board of the cantilever card, a composite structure design is adopted, such as a PCB composite structure of a cantilever probe card used for monitoring the wafer manufacturing process, which includes a base layer and outer layers respectively arranged on both sides of the base layer. The base layer is made of FR-4 material, and the outer layers on both sides are made of Rogers material. Rogers material has the characteristics of high frequency performance, low loss characteristics and stable thermal expansion coefficient, which greatly improves the leakage of the entire PCB. The leakage specification value is <0.1pa@10v, with strong anti-interference ability and stable performance, meeting the test requirements.

[0018] 2. The present invention comprises a phase shifter assembly, the core of the phase shifter, used to shift the signal phase; an RF connector assembly, typically available in SMA and N-type connectors, used to connect to external RF equipment and enable signal input and output; a feeder cable, which connects the phase shifter body and the RF connector to achieve electrical connection; and a fixing assembly, which integrally mounts the RF connector on the cavity of the phase shifter body. The connector has an opening and a positioning hole. The opening is for the RF connector's cantilever to engage, and the positioning hole mates with a snap-fit ​​connector, ensuring a more stable connection between the RF connector and the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the utility model;

[0020] Figure 2 Schematic diagram of the phase shifter component structure;

[0021] Figure 3 It is a three-dimensional schematic diagram of the structure of the RF connector component and the fixed component;

[0022] Figure 4 Schematic diagram of the structure of the RF connector assembly;

[0023] Figure 5 A schematic diagram of the fixed component structure.

[0024] In the figure: 1. Phase shifter assembly; 101. Phase shifter body; 102. Cable output port; 103. Adjustment button; 104. Power switch; 2. RF connector assembly; 201. Connector body; 202. Cable input port; 203. Anti-interference board; 3. Fixing assembly; 301. Connecting block; 302. Jack; 303. U-shaped plug; 4. Feeding cable. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example: Reference Figures 1 to 5 The cantilever card RF shown in the figure can be mass-produced with stable anti-interference, including a phase shifter component 1, a radio frequency connector component 2 is provided at the center of the top surface of the phase shifter component 1, and a fixing component 3 is provided at the front and rear ends of the bottom of the radio frequency connector component 2. A feeding cable 4 is connected between the two phase shifter components 1 and the radio frequency connector component 2. The two phase shifter components 1 and the radio frequency connector component 2 are installed in contact with each other to reduce the connection points and intermodulation potential risk points. The feeding cable 4 connects the phase shifter component 1 and the radio frequency connector component 2, and the radio frequency connector component 2 is integrated into the cavity of the phase shifter component 1 using the fixing component 3. The phase shifter component 1 includes a phase shifter body 101, and the top surface of the phase shifter body 101 is opened at the left edge. A cable output port 102 is provided, and the front surface of the phase shifter body 101 is provided with several adjustment buttons 103 in a matrix form. A power switch 104 is provided at the left edge of the front surface of the phase shifter body 101. The RF connector assembly 2 includes a connector body 201. A cable input port 202 is provided at the left side of the top of the connector body 201. The top surface of the connector body 201 is covered with anti-interference plates 203 on the front and rear edge lines respectively. The anti-interference plates 203 are made of soft magnetic alloy material, have high saturation magnetic induction intensity, extremely high initial magnetic permeability and maximum magnetic permeability, and extremely low coercive force, can effectively concentrate and guide magnetic lines of force, and play a key anti-interference role. The shell of the connector body 201 is PCB The board adopts a composite structure design, the base layer is made of FR-4 material, and the outer layers on both sides are made of Rogers material. The fixing component 3 includes two connecting blocks 301, each of which has a socket 302 at the bottom. A U-shaped rod 303 runs through the two connecting blocks 301. The feed cable 4 connects the phase shifter component 1 and the RF connector component 2 to achieve electrical connection between the two.

[0027] The advantages of the integrated design include: improving intermodulation stability: the RF connector and the phase shifter body are connected through the feed cable 4, without the need for components such as wiring terminals, reducing intermodulation risk points, ensuring the stability of the phase shifter intermodulation, and facilitating cable access: different from the traditional design of the phase shifter and the RF connector separately, it is more convenient to achieve cable access without wiring terminals, further ensuring the stability of the phase shifter intermodulation, and facilitating overall operation: the overall movement and testing of the phase shifter (including the RF connector) can be realized, which facilitates problem analysis and improves debugging efficiency.

[0028] This utility works as follows:

[0029] First, through integrated design: the RF connector and phase shifter and other related components are integrated into one design to reduce the connection points and intermodulation potential points. For example, a phase shifter with an RF connector connects the phase shifter body and the RF connector through a feed cable 4, and uses a fixing part to integrate the RF connector into the cavity of the phase shifter body, avoiding the intermodulation problems caused by the use of terminal blocks, etc., ensuring the stability of the phase shifter intermodulation, and realizing overall movement and testing, etc., which is convenient for analyzing problems and improving debugging efficiency. A high-performance material composite structure is used: For the PCB board of the cantilever card, a composite structure design is adopted, such as a PCB composite structure of a cantilever probe card used for monitoring the wafer manufacturing process, which includes a base layer and an outer layer respectively arranged on both sides of the base layer, and the base layer adopts F The PCB is made of R-4 material, with the outer layers on both sides made of Rogers material. Rogers material has high-frequency performance, low loss characteristics, and a stable thermal expansion coefficient, which greatly improves the leakage of the entire PCB. The leakage specification value is <0.1Pa@10V, and it has strong anti-interference capabilities and stable performance, meeting test requirements. The overall structure then forms the phase shifter component 1: the core of the phase shifter, used to achieve signal phase shifting; the RF connector component 2: generally available in different types such as SMA and N-type, used to connect external RF equipment to achieve signal input and output; the feed cable 4: connects the phase shifter body and the RF connector to achieve electrical connection between the two; the fixing component 3: is used to integrate the RF connector into the cavity of the phase shifter body. The connector is provided with an opening and a positioning hole. The opening is used to snap the RF connector cantilever into place, and the positioning hole cooperates with the snap fastener to ensure a more stable connection between the RF connector and the connector.

[0030] The electrical components mentioned in this article are all connected to an external main controller and 220V AC power, and the main controller can be a conventional known device that performs control such as a computer.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A mass-producible, stable, and anti-interference cantilever card radio frequency, comprising a phase shifter assembly (1), characterized in that: A radio frequency connector assembly (2) is provided at the center of the top surface of the phase shifter assembly (1), and fixing assemblies (3) are provided at the front and rear ends of the bottom of the radio frequency connector assembly (2), respectively. A feeder cable (4) is connected between the two phase shifter assemblies (1) and the radio frequency connector assembly (2); the two phase shifter assemblies (1) and the radio frequency connector assembly (2) are installed in contact with each other to reduce connection points and intermodulation potential risk points, the feeder cable (4) connects the phase shifter assembly (1) and the radio frequency connector assembly (2), and the fixing assembly (3) is used to integrally set the radio frequency connector assembly (2) on the cavity of the phase shifter assembly (1).

2. The mass-producible, stable, and anti-interference cantilever card radio frequency according to claim 1, characterized in that: The phase shifter assembly (1) comprises a phase shifter body (101), and a cable outlet (102) is provided on the top surface of the phase shifter body (101) at the left edge.

3. The mass-producible, stable, and anti-interference cantilever card radio frequency according to claim 2, characterized in that: The front surface of the phase shifter body (101) is provided with a plurality of adjustment buttons (103) in a matrix form, and the front surface of the phase shifter body (101) is provided with a power switch (104) at the left edge.

4. The mass-producible, stable, and anti-interference cantilever card radio frequency according to claim 1, characterized in that: The radio frequency connector assembly (2) comprises a connector body (201), a cable input port (202) is provided on the left side of the top of the connector body (201), and anti-interference plates (203) are respectively covered on the front and rear edge lines of the top surface of the connector body (201).

5. The mass-producible, stable, and anti-interference cantilever card radio frequency according to claim 4, characterized in that: The anti-interference plate (203) is made of a soft magnetic alloy material, has high saturation magnetic induction intensity, extremely high initial magnetic permeability and maximum magnetic permeability, and extremely low coercive force, can effectively concentrate and guide magnetic lines of force, and plays a key anti-interference role.

6. The mass-producible, stable, and anti-interference cantilever card radio frequency according to claim 4, characterized in that: The outer shell of the connector body (201) is a PCB board, which adopts a composite structure design, with the base layer made of FR-4 material and the outer layers on both sides made of Rogers material.

7. The mass-producible, stable, and anti-interference cantilever card radio frequency according to claim 1, characterized in that: The fixing assembly (3) comprises two connecting blocks (301), each of the connecting blocks (301) is provided with a socket (302) at the bottom, and a U-shaped plug rod (303) passes through the two connecting blocks (301).

8. The mass-producible, stable, and anti-interference cantilever card radio frequency according to claim 1, characterized in that: The feeder cable (4) connects the phase shifter component (1) and the radio frequency connector component (2) to achieve electrical connection between the two.

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