Low-delay high-intermodulation surface-mounted isolator for communication base station

Abstract

The utility model discloses a low-delay high-intermodulation surface-mounted isolator for a communication base station, which relates to the technical field of radio frequency isolators and comprises a magnetic conductive cavity and a magnetic conductive cover plate. The magnetic conductive cavity scatters with the center of the cylinder as the original point, and a first port, a second port and a third port are formed in the circumference of the magnetic conductive cavity at equal intervals. Wherein the first port is arranged outwards and is used for bearing and heat conduction of a welding high-power load; the included angle between the first port and the second port is 135 degrees; a welding positioning arc is arranged at the bottom of the magnetic conductive cavity along the circumference of the welding surface; a rigid support system is led out of the first port and the second port and is used for bearing signal transmission and rigid support; a 1.8 mm signal transmission channel is arranged on the rigid supporting system; an insulating bush and a contact pin are inserted through two adjacent ports, and the contact pin is directly connected to the central conductor and serves as a lead to conduct signals. Therefore, the surface-mounted isolator is low in delay, high in intermodulation and low in loss, and the device is superior to other 5G radio frequency devices.

Description

Technical Field

[0001] The utility model relates to the technical field of isolators, in particular to a low-delay and high-intermodulation surface-mount isolator for a communication base station. Background Art

[0002] With the improvement of wireless mobile communication systems and the rapid development of mobile applications for individuals and industries, the communication-related industrial ecology will gradually change. 5G is not only an air interface technology with higher speed, larger bandwidth and stronger capabilities, but also an intelligent network for user experience and business applications.

[0003] To sum up, in order to achieve the characteristics of high speed, wide bandwidth, high reliability, low latency, etc. for 5G base station equipment, it is necessary to provide a low-latency and high-intermodulation surface-mount isolator device for communication base stations among the components used. Utility Model Content

[0004] The purpose of the utility model is to provide a low-latency and high-intermodulation surface-mount isolator for a communication base station in order to address the technical problem that the surface-mount isolators used in the prior art for 5G radio frequency communication debugging systems have high loss, poor intermodulation, and high delay, and cannot meet the debugging requirements of radio frequency communication equipment.

[0005] The utility model is realized by the following technical solutions:

[0006] A low-latency and high-intermodulation surface-mount isolator for a communication base station comprises a magnetic conductive cavity; the materials in the magnetic conductive cavity are stacked in sequence from bottom to top, comprising a first permanent magnet, a first outer conductor, a first fixing ring, an SMD central Y junction assembly, a second fixing ring, a second outer conductor, a second permanent magnet, a phase adjuster, a first temperature compensator, a second temperature compensator, a high-temperature shielding film, and a magnetic conductive cover plate.

[0007] As a further preferred embodiment of the low-latency and high intermodulation surface mount isolator for a communication base station of the utility model, the magnetic conductive cavity is scattered with the center of the cylinder as the origin, and a first port, a second port and a third port are arranged at equal intervals along the circumference of the magnetic conductive cavity;

[0008] The first port is arranged outwardly for carrying and conducting heat of welding high-power loads;

[0009] The angle between the first port and the second port is 135 degrees;

[0010] A welding positioning arc is arranged at the bottom of the magnetic conductive cavity along the circumference of the welding surface;

[0011] The first port and the second port are connected to a rigid support system for signal transmission and rigid support; a 1.8mm signal transmission channel is set on the rigid support system; the first port is inserted with a first insulating bushing and a first pin, the second port is inserted with a second insulating bushing and a second pin, and the first pin and the second pin are directly welded to the center conductor to conduct signals as leads.

[0012] As a further preferred solution of the low-latency and high-intermodulation surface-mount isolator for a communication base station of the utility model, it also includes a high-power absorption load, which is placed on the third port for connection and bonded to the magnetic cavity bearing platform. A thread is arranged on the top of the magnetic cavity for spiral installation of the device, and a magnetic cover plate is used on the top for tightening and installation and closing.

[0013] As a further preferred solution of the low-delay and high-intermodulation surface-mount isolator for a communication base station of the utility model, the SMD central Y-junction assembly is composed of a first gyromagnetic material, a second gyromagnetic material and a central conductor, and the first gyromagnetic material and the central conductor are bonded to each other; the assembly of the first gyromagnetic material and the central conductor is bonded to the second gyromagnetic material.

[0014] As a further preferred solution of the low-latency and high-intermodulation surface-mount isolator for a communication base station of the utility model, the first gyromagnetic material and the second gyromagnetic material are both sintered by spinel and garnet at high temperatures, the finished product has a cylindrical structure, and the top surfaces of the cylinders of the first gyromagnetic material and the second gyromagnetic material are ground and polished, and evenly coated with a metal film layer.

[0015] As a further preferred solution of the utility model of a low-delay and high-intermodulation surface-mount isolator for a communication base station, the central conductor is composed of a large Y-junction signal transmission line of the conductor. The signal transmission line is designed to have a Y-junction as the main body at an angle of 135 degrees, and the first port, the second port, and the third port are arranged by rotating the Y-junction as the main body by 65 degrees to form a hexagonal structure.

[0016] As a further preferred solution of the utility model of a low-latency and high-intermodulation surface-mount isolator for a communication base station, a primary inductor, a secondary inductor, and a matching capacitor are respectively arranged on the sides corresponding to the signal input, signal output, and termination end of the third port, and a T-shaped transmission line is arranged at the three ports to connect with the arc line, and the signal input and signal output are on a horizontal line, which are perpendicular to the third port; the termination end is connected to a high-power absorption load and placed on a load-bearing and heat-dissipating platform of the third port.

[0017] As a further preferred solution of the low-delay and high-intermodulation surface-mount isolator for a communication base station of the utility model, the second port is provided with a port primary inductor and a port secondary inductor.

[0018] As a further preferred solution of the low-latency and high-intermodulation surface-mount isolator for a communication base station of the utility model, the high-temperature shielding film is circular and made of different high-temperature materials. It is formed into a 0.1 mm thick cylinder by stamping, and the edge of the cylinder is smooth and free of burrs.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. The utility model discloses a low-latency and high-intermodulation surface-mount isolator for a communication base station. The magnetic conductive cavity is improved, and the magnetic conductive cavity is scattered with the center of the cylinder as the origin. A first port, a second port and a third port are arranged at equal intervals along the circumference of the magnetic conductive shell; wherein the first port is arranged outwardly for bearing and heat conduction of welding high-power loads; the angle between the first port and the second port is 135 degrees; a welding positioning arc is arranged at the bottom of the magnetic conductive cavity along the circumference of the welding surface; a rigid support system is arranged for leading out the first port and the second port, which is used for signal transmission and rigid support; a 1.8mm signal transmission channel is arranged on the rigid support system; an insulating bushing and a pin are inserted through two adjacent ports, and the pin is directly welded to the center conductor to conduct signals as a lead.

[0021] 2. The utility model discloses a low-delay and high-intermodulation surface-mount isolator for a communication base station. The stacking method in the middle of the SMD central Y-junction assembly is improved, that is, the assembly is composed of a first gyromagnetic material, a second gyromagnetic material and a central conductor, and the first gyromagnetic material and the central conductor are bonded to each other; the assembly of the first gyromagnetic material and the central conductor is bonded to the second gyromagnetic material, thereby ensuring the concentricity of the core components and the stability of the radio frequency signal transmission.

[0022] 3. The utility model discloses a low-latency and high intermodulation surface mount isolator for a communication base station. By improving the first gyromagnetic material and the second gyromagnetic material, and grinding and polishing the top surface of the material cylinder and uniformly coating it with a metal film layer, the transmission loss is effectively reduced and the signal delay is reduced.

[0023] 4. The utility model discloses a low-latency and high-intermodulation surface-mount isolator for a communication base station. The materials used are stacked in sequence from bottom to top, including a first permanent magnet, an outer conductor 1, a first fixing ring, an SMD central Y junction assembly, a second fixing ring, an outer conductor 2, a second permanent magnet, a phase adjuster, a first temperature compensator, a second temperature compensator, a high-temperature shielding film, and a magnetic cover plate. A high-power absorption load is connected to the third port and bonded to the magnetic cavity bearing platform. A thread is arranged on the top of the magnetic cavity to facilitate the spiral installation of the device. The top is screwed and installed with a magnetic cover plate.

[0024] 5. The utility model discloses a low-latency and high-intermodulation surface-mount isolator for communication base stations. The high-temperature shielding film is improved and round in shape. It is made of different high-temperature materials and is formed into a 0.1mm thick cylinder by stamping. The edge of the cylinder is smooth and has no burrs, which can improve the intermodulation and reliability of the product and reduce the resonance effect caused by the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of a gyromagnetic material assembly of a low-latency and high-intermodulation surface mount isolator for a communication base station;

[0026] Figure 2 It is a schematic diagram of the central conductor structure of the utility model applied to a low-delay high-intermodulation surface mount isolator for a communication base station;

[0027] Figure 3 This is a schematic diagram of a three-dimensional model of a low-latency and high-intermodulation surface mount isolator for a communication base station of the utility model;

[0028] Figure 4 The utility model is a schematic diagram of the exploded structure of a low-delay and high-intermodulation surface-mount isolator for a communication base station.

[0029] In the figure: 1. magnetic cavity; 2. first permanent magnet; 3. first outer conductor; 4. first fixing ring; 5. SMD central Y junction assembly; 5-1. first gyromagnetic material; 5-2. second gyromagnetic material; 5-3. central conductor; 4-1. second fixing ring; 3-1. second outer conductor; 6. second permanent magnet; 7. phase adjuster; 8. first temperature compensator; 9. second temperature compensator; 10. high temperature shielding film; 11. magnetic cover; 12. high power absorption load; 13. pin 1; 13-1. pin 2; 14. insulating bushing 1; 14-1. insulating bushing 2; 15. primary inductor; 16. matching capacitor; 17. secondary inductor; 18. port primary inductor; 19. port secondary inductor. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0031] The miniaturized stripline isolator of the utility model embodiments generally described and shown in the drawings herein can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed, but merely represents selected embodiments of the utility model.

[0032] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0033] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "X-axis", "Y-axis", "Z-axis", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] The following is a further description in conjunction with the accompanying drawings and specific implementations.

[0036] like Figure 1-Figure 4 As shown, a low-latency and high-intermodulation surface-mount isolator for a communication base station comprises a magnetic cavity 1; the materials in the magnetic cavity 1 are stacked in sequence from bottom to top, comprising a first permanent magnet 2, a first outer conductor 3, a first fixing ring 4, an SMD central Y-junction assembly 5, a second fixing ring 4-1, a second outer conductor 3-1, a second permanent magnet 6, a phase adjuster 7, a first temperature compensator 8, a second temperature compensator 9, a high-temperature shielding film 10, and a magnetic cover plate 11; a thread is arranged at the top of the magnetic cavity 1 to facilitate the spiral installation of the device, and the top is screwed and installed with a magnetic cover plate to prevent magnetic leakage.

[0037] The magnetic conductive cavity 1 is scattered with the center of the cylinder as the origin, and a first port, a second port and a third port are arranged at equal intervals along the circumference of the magnetic conductive cavity;

[0038] The first port is arranged outwardly for carrying and conducting heat of welding high-power loads;

[0039] The angle between the first port and the second port is 135 degrees;

[0040] A welding positioning arc is arranged at the bottom of the magnetic conductive cavity along the circumference of the welding surface;

[0041] The first port and the second port are connected to a rigid support system for signal transmission and rigid support; a 1.8 mm signal transmission channel is set on the rigid support system; the first port is inserted with a first insulating bushing 14 and a first pin 13, the second port is inserted with a second insulating bushing 14-1 and a second pin 13-1, and the first pin 13 and the second pin 13-1 are directly welded to the center conductor to conduct signals as leads.

[0042] In order to achieve the requirements of low latency, high intermodulation, and low loss of communication base stations, this low latency and high intermodulation surface mount isolator is used in base station equipment, that is, a magnetic cavity is used to scatter with the center of the cylinder as the origin, and the first port, the second port, and the third port are arranged at equal intervals along the circumference of the magnetic cavity; wherein the first port is arranged outward for welding the load and heat conduction of high-power loads; the angle between the first port and the second port is 135 degrees; a welding positioning arc is arranged along the circumference of the welding surface at the bottom of the magnetic cavity; a rigid support system is arranged for the first port and the second port to bear signal transmission and rigid support; a 1.8mm signal transmission channel is arranged on the rigid support system; an insulating bushing and a pin are inserted through two adjacent ports, and the pin is directly welded on the center conductor to conduct signals as a lead. As a result, the surface mount isolator has low latency, high intermodulation, and low loss, making the device superior to other 5G RF devices.

[0043] It also includes a high-power absorption load 12, which is placed on the third port and bonded to the magnetic cavity support platform. A thread is set on the top of the magnetic cavity for spiral installation of the device, and a magnetic cover plate is used on the top to tighten and install it.

[0044] The utility model discloses a low-delay high intermodulation surface mount isolator for a communication base station. The SMD central Y-junction assembly 5 is improved and is composed of a first gyromagnetic material 5-1, a second gyromagnetic material 5-2 and a central conductor 5-3. The first gyromagnetic material 5-1 and the central conductor 5-3 are bonded to each other; the assembly of the first gyromagnetic material 5-1 and the central conductor 5-3 is bonded to the second gyromagnetic material 5-2, thereby ensuring the concentricity of core components and the stability of radio frequency signal transmission.

[0045] The first gyromagnetic material 5-1 and the second gyromagnetic material 5-2 are both sintered from spinel and garnet at high temperature, and the finished product has a cylindrical structure. The top surfaces of the cylinders of the first gyromagnetic material 5-1 and the second gyromagnetic material 5-2 are ground and polished, and evenly coated with a metal film layer.

[0046] The central conductor is composed of a large Y-junction signal transmission line. The signal transmission line is designed with a Y-junction as the main body at an angle of 135 degrees. The first port, the second port, and the third port are arranged by rotating the Y-junction as the main body by 65 degrees to form a hexagonal structure.

[0047] A primary inductor 15, a secondary inductor 17, and a matching capacitor 16 are respectively arranged on the sides corresponding to the signal input, signal output, and termination end of the third port, and a T-shaped transmission line is arranged at the three ports to connect with the arc line. The signal input and signal output are on a horizontal line, which are perpendicular to the third port; the termination end is connected to a high-power absorption load 12 and is placed on the bearing and heat dissipation platform of the third port.

[0048] The second port is provided with a port primary inductor 18 and a port secondary inductor 19 .

[0049] The high temperature shielding film 10 is round in shape and is made of different high temperature materials. It is formed into a 0.1 mm thick cylinder by stamping, and the edge of the cylinder is smooth and free of burrs.

[0050] The utility model discloses a low-latency and high-intermodulation surface-mount isolator for a communication base station. The isolator is made of different high-temperature materials by improving a high-temperature shielding film and presenting a round shape. A 0.1 mm thick cylinder is formed by stamping. The edge of the cylinder is smooth and free of burrs, which can improve the intermodulation and reliability of the product and reduce the resonance effect caused by the product.

[0051] After the surface mount isolator body is connected to the external wire, the device components can be filtered and stray beams can be absorbed. The smaller size can increase the integration of the components and achieve the requirements of low latency, high intermodulation and low loss of the product.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A low-latency and high intermodulation surface mount isolator for a communication base station, characterized in that: The invention comprises a magnetic cavity (1); the materials in the magnetic cavity (1) are stacked in order from bottom to top, and comprise a first permanent magnet (2), a first outer conductor (3), a first fixing ring (4), an SMD central Y junction assembly (5), a second fixing ring (4-1), a second outer conductor (3-1), a second permanent magnet (6), a phase adjuster (7), a first temperature compensator (8), a second temperature compensator (9), a high-temperature shielding film (10), and a magnetic cover plate (11).

2. A low-latency, high-intermodulation surface mount isolator for a communication base station according to claim 1, characterized in that: The magnetic conductive cavity (1) is scattered with the center of the cylinder as the origin, and a first port, a second port and a third port are arranged at equal intervals along the circumference of the magnetic conductive cavity; The first port is arranged outwardly for carrying and conducting heat of welding high-power loads; The angle between the first port and the second port is 135 degrees; A welding positioning arc is arranged at the bottom of the magnetic conductive cavity along the circumference of the welding surface; The first port and the second port are connected to a rigid support system for signal transmission and rigid support; a 1.8 mm signal transmission channel is arranged on the rigid support system; the first port is inserted with a first insulating bushing (14) and a first plug pin (13); the second port is inserted with a second insulating bushing (14-1) and a second plug pin (13-1); the first plug pin (13) and the second plug pin (13-1) are directly welded to the center conductor to conduct signals as leads.

3. A low-latency, high-intermodulation surface mount isolator for a communication base station according to claim 1, characterized in that: It also includes a high-power absorption load (12), which is placed on the third port for connection and bonded to the magnetic cavity bearing platform. The top of the magnetic cavity is provided with a thread for spiral installation of the device, and the top is screwed and installed with a magnetic cover plate.

4. A low-latency and high intermodulation surface mount isolator for a communication base station according to claim 1, characterized in that: The SMD central Y junction assembly (5) is composed of a first gyromagnetic material (5-1), a second gyromagnetic material (5-2) and a central conductor (5-3); the first gyromagnetic material (5-1) and the central conductor (5-3) are bonded to each other; and the assembly of the first gyromagnetic material (5-1) and the central conductor (5-3) is bonded to the second gyromagnetic material (5-2).

5. A low-latency and high intermodulation surface mount isolator for a communication base station according to claim 4, characterized in that: The first gyromagnetic material (5-1) and the second gyromagnetic material (5-2) are both sintered from spinel and garnet at high temperature, and the finished product has a cylindrical structure. The top surfaces of the cylinders of the first gyromagnetic material (5-1) and the second gyromagnetic material (5-2) are ground and polished, and are evenly coated with a metal film layer.

6. A low-latency and high intermodulation surface mount isolator for a communication base station according to claim 4, characterized in that: The central conductor is composed of a large Y-junction signal transmission line. The signal transmission line is designed with a Y-junction as the main body at an angle of 135 degrees. The first port, the second port, and the third port are arranged by rotating the Y-junction as the main body by 65 degrees to form a hexagonal structure.

7. A low-latency and high intermodulation surface mount isolator for a communication base station according to claim 6, characterized in that: A primary inductor (15), a secondary inductor (17), and a matching capacitor (16) are respectively arranged on the sides corresponding to the signal input, signal output, and termination end of the third port, and a T-shaped transmission line is arranged at the three ports to connect with the arc line, the signal input and signal output are on a horizontal line, and are perpendicular to the third port; the termination end is connected to a high-power absorption load (12) and is placed on a bearing and heat dissipation platform of the third port.

8. A low-latency and high intermodulation surface mount isolator for a communication base station according to claim 2, characterized in that: The second port is provided with a port primary inductor (18) and a port secondary inductor (19).

9. A low-latency and high intermodulation surface mount isolator for a communication base station according to claim 1, characterized in that: The high-temperature shielding film (10) is round in shape and is made of different high-temperature materials. It is formed into a 0.1 mm thick cylinder by stamping, and the edge of the cylinder is smooth and free of burrs.

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