Hangband high-isolation multipath power combiner

Abstract

The utility model discloses a high-isolation multi-path power combiner for a sling. The high-isolation multi-path power combiner comprises an input joint, a cavity and an output joint which are connected in sequence, a sling inner conductor and a microstrip line are arranged in the cavity; one end of the sling inner conductor is connected with the input connector, and the other end is connected with the output connector; the microstrip line is arranged according to a preset position, and an isolation resistor is arranged in a gap. The synthesizer provided by the utility model can effectively protect internal parts of the power amplifier, and the problem that the internal parts of the power amplifier are damaged due to non-uniform distribution of input ports of the synthesizer when the whole equipment is in a completely open circuit state is solved; and through the arrangement of the isolation resistor, the hot plug function of the whole equipment can be realized. In the use process, if one, two or more power amplifiers are damaged, the power amplifiers can be directly replaced, and the work of the whole equipment is not influenced; when complete machine equipment works in a complete open circuit mode, returned power can be effectively and evenly distributed to all power amplifiers, and therefore the purpose of using stability is achieved.

Description

Technical Field

[0001] The utility model relates to the field of power synthesizers, in particular to a suspended belt high-isolation multi-channel power synthesizer. Background Art

[0002] Existing RF power sources and transmitters use power combiners, mostly Wilkinson scheme suspension lines for power synthesis. Since there is no isolation resistor, all power will be fed back into the power amplifier when the circuit is open, and unevenly distributed to each power. When the whole device is in working state, the hot plug function cannot be realized, etc. Utility Model Content

[0003] In view of this, the utility model provides a suspended belt high-isolation multi-channel power combiner to solve the above problems.

[0004] In order to solve the above technical problems, the utility model provides a suspended belt high isolation multi-channel power synthesizer, comprising:

[0005] An input connector, a cavity and an output connector connected in sequence;

[0006] A suspension inner conductor and a microstrip line are arranged in the cavity; one end of the suspension inner conductor is connected to an input connector, and the other end is connected to an output connector; the microstrip line is arranged at a preset position, and an isolation resistor is arranged in the gap thereof.

[0007] As an optional manner, the input connector and the output connector are respectively provided with an input connector inner conductor and an output connector inner conductor on one side close to the cavity, and one end of the suspension tape inner conductor is fixed to the input connector inner conductor, and the other end is fixed to the output connector inner conductor.

[0008] As an optional manner, a water pipe inlet and a water pipe outlet are respectively provided on one side of the cavity.

[0009] As an optional approach, a cold plate is provided in the cavity.

[0010] As an optional manner, a transition conductor medium and a transition conductor are arranged in the cavity.

[0011] As an optional manner, the isolation resistors are arranged in an array in the cavity, and the microstrip lines are arranged around the isolation resistors.

[0012] As an option, the inner conductor of the suspension tape is made of copper material, and the surface of the copper conductor is plated with metallic silver.

[0013] As an optional manner, the conductor inside the input connector and the conductor inside the output connector are connected respectively by means of clamps and / or assembly screws.

[0014] As an optional method, the cavity is made of aluminum plate or aluminum ingot, and the surface thereof is subjected to conductive oxidation treatment.

[0015] As an optional method, the transition conductor is made of copper material, and the surface of the copper material is plated with metallic silver; the transition conductor medium adopts polytetrafluoroethylene medium.

[0016] The beneficial effects of the utility model are:

[0017] The synthesizer provided by the utility model can effectively protect the internal components of the power amplifier. When the whole device is in a completely open circuit state, the internal components of the power amplifier will not be damaged due to uneven distribution of the synthesizer input ports; and the hot-swap function of the whole device can be realized by setting the isolation resistor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A cross-sectional view from a first perspective of a power combiner provided in an embodiment of the utility model;

[0019] Figure 2 A cross-sectional view from a second viewing angle of the power combiner provided in an embodiment of the utility model.

[0020] Reference numerals and their corresponding relationships:

[0021] 11-input connector, 111-input connector inner conductor, 12-output connector, 121-output connector inner conductor, 2-cavity, 21-microstrip line, 22-suspension strip inner conductor, 31-cold plate, 32-water pipe inlet, 33-water pipe outlet, 4-isolation resistor, 51-transition conductor medium, 52-transition conductor. DETAILED DESCRIPTION

[0022] The existing RF power sources and transmitters use a power synthesizer, which is mostly a Wilkinson scheme suspension line for power synthesis. Since there is no isolation resistor, all power will be fed back into the power amplifier when the circuit is open, and unevenly distributed to each power, and the hot plug function cannot be realized when the whole device is in working state. Therefore, this embodiment provides a suspension high-isolation multi-channel power synthesizer, the purpose of which is to effectively protect the internal components of the power amplifier. When the whole device is completely open-circuited, the problem of damage to the internal components of the power amplifier due to uneven distribution of the synthesizer input port will not occur; and the hot plug function of the whole device is realized by setting the isolation resistor.

[0023] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0026] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 direct connection, or an indirect connection 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.

[0027] See also Figure 1 and Figure 2 , a suspension tape high isolation multi-channel power synthesizer provided in this embodiment includes: an input connector 11, a cavity 2 and an output connector 12 connected in sequence; a suspension tape inner conductor 22 and a microstrip line 21 are arranged in the cavity 2; one end of the suspension tape inner conductor 22 is connected to the input connector 11, and the other end is connected to the output connector 12; the microstrip line 21 is arranged according to a preset position, and an isolation resistor 4 is arranged in its gap. In this embodiment, the isolation resistor 4 is arranged in an array in the cavity 2, and the microstrip line 21 is arranged around the isolation resistor 4. As an optional method, the suspension tape inner conductor 22 of this embodiment adopts the Wilkinson method, which is mainly used to transmit signals, synthesizes multiple inputs into one output, and uses a copper plate surface plated with silver; the microstrip line 21 adopts the Giselle method, which is mainly used to realize an isolated transmission line, and the isolation resistor 4 is matched according to the number of paths of the suspension tape inner conductor 22. The cavity 2 can be a shielding cavity, which is made of aluminum plate or aluminum ingot, and the surface is conductively oxidized, and is tightly matched with other accessories of this embodiment to achieve a shielding effect.

[0028] As an optional method, the input connector 11 and the output connector 12 are respectively provided with an input connector inner conductor 111 and an output connector inner conductor 121 on one side close to the cavity 2, and one end of the suspension inner conductor 22 is fixed to the input connector inner conductor 111, and the other end is fixed to the output connector inner conductor 121. In this embodiment, the input connector 11 can adopt a connector (including inner conductor, dielectric, outer conductor, etc.) that matches the hot-swap mode of the power amplifier, the inner conductor uses a silver-plated copper rod, and is assembled with the suspension inner conductor 22 by screws, and the size of the connector can be changed according to the power size of the whole device; the output connector 12 adopts a connector (including inner conductor, dielectric, outer conductor) that is connected to the external device in a standard copper tube mode, and the inner conductor and the suspension inner conductor 22 are clamped and assembled with screws, the inner conductor uses a silver-plated copper rod, and the size of the connector can be changed according to the power size of the whole device.

[0029] As an option, the isolation resistor 4 is cooled by a water cooling arrangement. Please refer to Figure 2 In this embodiment, a water pipe inlet 32 ​​and a water pipe outlet 33 are respectively provided on one side of the cavity 2, and a cold plate 31 is provided inside the cavity 2. The cold plate 31 is realized by a pressurized copper tube with an aluminum plate, and cools and isolates the load, and plays a conductive shielding role through conductive oxidation.

[0030] As an optional method, the cavity 2 is provided with an over-conductor medium 51 and an over-conductor 52. The over-conductor 52 is used to connect the conductors of the corresponding ports of the suspension strip inner conductor 22 and the microstrip line 21, and is made of a copper rod plated with silver; the over-conductor medium 51 can be a standard 50Ω polytetrafluoroethylene medium. The specific medium selection is not limited in this embodiment and can be configured according to actual needs.

[0031] Furthermore, in order to achieve better technical effects, the suspension line can adopt a copper suspension line structure with a certain thickness, improve product consistency through wire cutting processing, and adopt silver plating and other processes on the surface of the copper suspension line, the inner surface of the synthesizer cavity 2, the surface of the input connector 11, and the surface of the output connector 12 to improve the power bearing capacity of the suspension line. The microstrip line 21 can adopt a high-precision printed circuit board to achieve an overall loss of less than 0.1dB and a parallelism of less than 0.1dB; thereby realizing the power synthesis of medium and high power amplifier plug-ins of the RF power source, thereby reducing the number of amplifier plug-ins used in the whole machine and improving product reliability.

[0032] As an optional method, the input connector inner conductor 111 and the output connector inner conductor 121 can be connected by first clamping and then assembling with copper screws, or other connection methods can be used.

[0033] Because the whole device is hot-swappable, the existing impedance change synthesizer cannot realize hot-swappable. Based on the above scheme, this embodiment can realize the hot-swappable function during use, for example: 1. If one, two, or more power amplifiers are broken, the power amplifiers can be directly replaced without affecting the operation of the whole device; 2. When the whole device is fully open-circuited, the returned power can be effectively evenly distributed to each power amplifier, thereby achieving the purpose of stability in use.

[0034] The above are only preferred embodiments of the present invention. It should be noted that the above preferred embodiments should not be regarded as limiting the present invention. The protection scope of the present invention should be based on the scope defined by the claims. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the spirit and scope of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A high-isolation multi-channel power combiner with a suspension belt, characterized in that: include: An input connector (11), a cavity (2) and an output connector (12) connected in sequence; A suspension tape inner conductor (22) and a microstrip line (21) are arranged in the cavity (2); one end of the suspension tape inner conductor (22) is connected to the input connector (11), and the other end is connected to the output connector (12); the microstrip line (21) is arranged at a preset position, and an isolation resistor (4) is arranged in a gap therebetween.

2. The high-isolation multi-channel power combiner of claim 1, characterized in that: The input connector (11) and the output connector (12) are respectively provided with an input connector inner conductor (111) and an output connector inner conductor (121) on one side close to the cavity (2); one end of the suspension tape inner conductor (22) is fixed to the input connector inner conductor (111), and the other end is fixed to the output connector inner conductor (121).

3. The high-isolation multi-channel power combiner of claim 1, characterized in that: A water pipe inlet (32) and a water pipe outlet (33) are respectively provided on one side of the cavity (2).

4. The high-isolation multi-channel power combiner of claim 1, characterized in that: A cold plate (31) is arranged in the cavity (2).

5. The high-isolation multi-channel power combiner of claim 1, characterized in that: A transition conductor medium (51) and a transition conductor (52) are arranged in the cavity (2).

6. The high-isolation multi-channel power combiner with a suspension belt according to claim 1, characterized in that: The isolation resistors (4) are arranged in an array in the cavity (2), and the microstrip lines (21) are arranged around the isolation resistors (4).

7. The high-isolation multi-channel power combiner of claim 1, characterized in that: The suspension tape inner conductor (22) is made of copper material, and its surface is plated with metallic silver.

8. The high-isolation multi-channel power combiner with a suspension belt according to claim 2, characterized in that: The input connector inner conductor (111) and the output connector inner conductor (121) are connected respectively by means of clamps and / or assembly screws.

9. The high-isolation multi-channel power combiner with a suspension belt according to claim 1, characterized in that: The cavity (2) is made of aluminum plates or aluminum ingots, and its surface is subjected to conductive oxidation treatment.

10. The high-isolation multi-channel power combiner with a suspension belt according to claim 5, characterized in that: The transition conductor (52) is made of copper material, and its surface is plated with metallic silver; the transition conductor medium (51) is a polytetrafluoroethylene medium.

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