High-power-density forced air cooling power amplifier unit

Abstract

The utility model discloses a high-power-density forced air cooling power amplifier unit which comprises a control board, a driving power amplifier, a one-to-two power divider, a one-to-eight power divider, a power amplifier board, a circulator, an eight-in-one synthesizer, a two-in-one synthesizer, a directional coupler and a radiator. The structural member forms a platform for bearing a power amplifier element, one side of the structural member is provided with a plurality of one-to-eight power dividers according to a preset array, the power dividers are arranged into two groups, and a preset interval is reserved between the groups; an eight-in-one synthesizer is arranged in the preset interval; a radiator is arranged on the other side of the structural member; two ends of the eight-in-one synthesizer are respectively provided with a one-to-two power divider and a two-in-one synthesizer; and a directional coupler is arranged at the other end of the two-in-one synthesizer. According to the utility model, through two times of power distribution, the power transmission direction is changed into transmission from the two sides of the power amplifier unit case to the middle, then signals are synthesized and turned through the two synthesizers, and finally, the layout design of a large number of power amplifier boards is realized under the condition that the signal input and output directions are not changed.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic power amplifier element technical field, specifically, relate to a high power density forced air cooling power amplifier unit. BACKGROUND

[0002] Current power source, along with the continuous demand of load to power source power promotion, it is imperative to study the research topic of improving the output power of single power amplifier unit, the power density of each power amplifier unit, however, how does the traditional power amplifier unit layout improve the output power of power amplifier unit, the power density of each power amplifier unit makes the current difficulty.

[0003] The current power amplifier unit layout basically adopts the layout of single surface power amplifier board, there are single power amplifier board, double power amplifier board and four power amplifier board layout, such as Figure One (double power amplifier board layout), figure two 2 (four power amplifier board layout), the output power of each power amplifier board is below 2kW, the power output of single power amplifier unit is generally below 10kW, it is very difficult to reach 20kW, even more than 100kW.

[0004] The current power amplifier unit layout, the signal transmission direction always keeps the same direction, such as Figure Three (double power amplifier board layout), under the restriction of power amplifier size, the port number of power divider and synthesizer is generally below 4, and the port number above 4 will cause great space waste, so the number of power amplifier boards of general power amplifier unit is below 4.

[0005] With the increasing demand of power source to the power of the final power amplifier unit, the conventional power amplifier unit layout cannot meet the demand, and the high power density of single power amplifier unit is imminent. INVENTION CONTENTS

[0006] Therefore, the utility model provides a high power density forced air cooling power amplifier unit to solve the above problems.

[0007] To solve the above technical problem, the utility model provides a high power density forced air cooling power amplifier unit, which comprises:

[0008] Control board, driving power amplifier, 1 / 2 power divider, 1 / 8 power divider, power amplifier board, circulator, 8-in-1 synthesizer, 2-in-1 synthesizer, directional coupler and radiator, which are integrated in the enclosed structure of the structural member together.

[0009] The structural member forms a platform for carrying power amplifier elements, and a plurality of 1 / 8 power dividers are arranged on one side of the platform according to a preset array, the 1 / 8 power dividers are arranged in two groups, and a preset interval is left between the two groups; an 8-in-1 synthesizer is arranged in the preset interval; and a radiator is arranged on the other side of the structural member.

[0010] Two ends of the 8-in-1 combiner are respectively provided with a 1 / 2 power divider and a 2-in-1 combiner; the other end of the 2-in-1 combiner is provided with a directional coupler.

[0011] As an optional mode, the driving power amplifier and the 1 / 2 power divider are respectively arranged at intervals from the 1 / 8 power divider.

[0012] As an optional mode, the circulators are arranged between the 1 / 8 power divider and the 8-in-1 combiner, and the number of the circulators matches the number of the 1 / 8 power divider.

[0013] As an optional mode, the 1 / 8 power divider is respectively fixed with a positive busbar and a negative busbar in the corresponding array.

[0014] As an optional mode, the driving power amplifier, the 2-in-1 combiner and the directional coupler are respectively located on two sides of the 1 / 8 power divider array.

[0015] As an optional mode, the control board and the power supply are arranged on the other side of the structural member opposite to the side where the driving power amplifier and the 1 / 2 power divider are arranged.

[0016] As an optional mode, the power amplifier board is arranged in the structural member in a paving mode, and the projection of the 1 / 8 power divider overlaps the normal direction of the structural member.

[0017] As an optional mode, the two groups of 1 / 8 power dividers are symmetrically arranged.

[0018] The utility model discloses a power amplifier unit, which comprises a structural member, a driving power amplifier, a 1 / 2 power divider, a 2-in-1 combiner, a directional coupler, a power amplifier board, a control board and a power supply.

[0019] The utility model discloses two groups of 1 / 8 power dividers are arranged on two sides of the power amplifier unit respectively, realizes the first signal transmission and turns to, and the synthesis output port of two 8-in-1 combiners is arranged on the end face symmetry, realizes the second turning of signal transmission, and the signal output direction is consistent with the input direction after final synthesis. In this way, two-stage distribution, two-stage synthesis, the number of power amplifier boards can be improved to 16, and the output power of the power amplifier unit is greatly improved. The structure is compact, and the size of the power amplifier unit is not greatly increased while the number of power amplifier boards is increased to improve the output power. DRAWINGS

[0020] Figure 1 It is a double power amplifier board layout schematic diagram of prior art;

[0021] Figure 2 It is a four power amplifier board layout schematic diagram of prior art;

[0022] Figure 3 It is another double power amplifier board layout schematic diagram of prior art;

[0023] Figure 4 It is a front view schematic diagram of the power amplifier unit provided by the utility model embodiment;

[0024] Figure 5 The utility model provides a power amplifier unit back surface schematic drawing for the embodiment of the utility model provides a power amplifier unit directional coupler principle schematic drawing.

[0025] Figure 6 The utility model provides a power amplifier unit back surface schematic drawing for the embodiment of the utility model provides a power amplifier unit directional coupler principle schematic drawing.

[0026] The figure mark and its corresponding relation are as follows:

[0027] 11-power supply, 12-control panel, 13-driving power amplifier, 2-1 split 8 power divider, 3-8 combine 1 combiner, 4-2 combine 1 combiner, 5-directional coupler, 6-radiator, 7-power amplifier board, 8-circulator, 9-1 split 2 power divider. Specific implementation

[0028] In order to make the technical personnel of the prior art better understand the technical scheme of the utility model, the utility model is further explained in detail below in combination with specific implementation.

[0029] Embodiment

[0030] First, the nomenclature of the embodiment is explained:

[0031] Structural member: frame type structure, for integrated component;

[0032] Power divider: power distributor, divides the energy of one input signal into two or more output equal energy devices

[0033] Combiner: opposite to power divider, combines multiple input signals into one device

[0034] Circulator: the incident wave of any port into it is sequentially transmitted into the next port according to the direction determined by the static bias magnetic field

[0035] Port device, also called isolator

[0036] Power amplifier board: power amplifier circuit board, the input signal is amplified and outputted

[0037] Directional coupler: the device for coupling signals from one transmission line to another transmission line, for realizing the coupling and distribution of signals

[0038] 1 split 2: power distributor, divides 1 signal into 2 output equal energy devices

[0039] 1 split 8: power distributor, divides 1 signal into 8 output equal energy devices

[0040] 2 combine 1: power combiner, combines 2 input signals into 1 device

[0041] 8 in 1: power combiner, device that combines 8 input signals into 1

[0042] Control board: device for control of power amplifier unit, information collection

[0043] Radiator: aluminum profile, increase the heat dissipation area, improve the heat dissipation effect

[0044] Drive power amplifier: pre-stage power amplifier, one-stage amplification of input signal

[0045] With the increasing demand of power source on the power of the last-stage power amplifier unit, the conventional power amplifier unit layout can not meet the demand, and the high power density of single power amplifier unit is imminent. The embodiment mainly develops a high power density forced air cooling power amplifier unit, which solves the problem of low power density of single power amplifier through the layout of new power divider, combiner and power amplifier board.

[0046] To solve the above problems, please refer to Figure 4 and Figure 5 , the embodiment provides a high power density forced air cooling power amplifier unit, which comprises a control board 12, a drive power amplifier 13, a 1 / 2 power divider 9, a 1 / 8 power divider 2, a power amplifier board 7, a circulator 8, an 8 in 1 combiner 3, a 2 in 1 combiner 4, a directional coupler 5 and a radiator 6, which are integrated in the enclosed structure of the structural member; the structural member forms a platform for carrying power amplifier elements, one side of which is provided with a plurality of 1 / 8 power dividers 2 in a predetermined array, which are arranged into two groups and have a predetermined interval between the groups; the 8 in 1 combiner 3 is arranged in the predetermined interval; the other side of the structural member is provided with the radiator 6; the two ends of the 8 in 1 combiner 3 are respectively provided with the 1 / 2 power divider 9 and the 2 in 1 combiner 4; the other end of the 2 in 1 combiner 4 is provided with the directional coupler 5. Among them, the two groups of 1 / 8 power dividers 2 are symmetrically arranged, and the 1 / 8 power dividers 2, the 8 in 1 combiner 3, the 2 in 1 combiner 4 and the directional coupler 5 are respectively laid on both sides of the water cooling plate.

[0047] In the embodiment, as an optional way, the drive power amplifier 13 and the 1 / 2 power divider 9 are arranged in an interval with the 1 / 8 power divider 2. The circulator 8 is arranged between the 1 / 8 power divider 2 and the 8 in 1 combiner 3, and the number of the circulator 8 matches the number of the 1 / 8 power divider 2. The 1 / 8 power divider 2 is respectively fixed with a positive busbar and a negative busbar in the corresponding array. The drive power amplifier 13 and the 2 in 1 combiner 4, the directional coupler 5 are respectively located on both sides of the 1 / 8 power divider 2 array. The control board 12 and the power supply 11 are arranged on the other side of the structural member opposite to the side provided with the drive power amplifier 13 and the 1 / 2 power divider 9. The power amplifier board 7 is laid in the structural member, and the projection of the 1 / 8 power divider 2 overlaps the normal direction of the structural member. That is, the setting position of the power amplifier board 7 matches the setting position of the 1 / 8 power divider 2.

[0048] In the implementation process, two 1 / 8 power dividers 2 are arranged on both sides of the power amplifier unit to realize the first signal transmission turning, and the combined output ports of two 8-in-1 combiners 3 are arranged symmetrically on the end face to realize the second signal transmission turning. After the signal is turned twice by the two 1 / 8 power dividers 2 and the two 8-in-1 combiners 3, the final combined signal output direction is consistent with the input direction. In this way, the power amplifier unit can increase the number of power amplifier boards 7 to 16 through two-stage distribution and two-stage combination, greatly improving the output power of the single side of the power amplifier unit. The structure is compact, and the size of the power amplifier unit increases slightly while increasing the number of power amplifier boards 7 to improve the output power. In addition, the power supply of the power amplifier board 7 in the embodiment can be directly installed by using the busbar, reducing the wiring and making the power amplifier unit more tidy.

[0049] In the above structure design process, the power transmission direction is changed to be transmitted from both sides of the power amplifier unit case to the middle through two power distributors, and then the signal is combined and turned through two combiners, such as Figure 6 Finally, the signal input and output directions are not changed to realize the layout design of multiple numbers of power amplifier boards 7. And the following advantages are achieved:

[0050] Two-stage distribution, the distributor is arranged on both sides, the signal transmission direction is changed, the horizontal arrangement of the power amplifier board 7 is changed to the vertical arrangement; the power amplifier board 7 is arranged in two columns while arranged vertically, and the power density is very high when arranged symmetrically, and the space utilization is greatly improved; the combiner changes the arrangement of the combined output port in the middle to the arrangement on one side of the end face, and changes the signal transmission direction again, so that the signal output direction of the final combiner returns to the original signal input direction; if 16 power amplifier units are arranged in the conventional power amplifier unit layout, either the horizontal size will be very large, the power divider and the combiner will be very long, and the directional coupler 5 will be very short, which will cause a lot of space waste; or they are arranged separately as four independent power amplifier units.

[0051] The above is only a preferred embodiment of the present application, and it should be pointed out that the above preferred embodiment should not be regarded as a limitation of the present application, and the protection scope of the present application should be limited by the scope defined in the claims. For ordinary skilled persons in the technical field, some improvements and refinements can be made without departing from the spirit and scope of the present application, and these improvements and refinements should also be regarded as the protection scope of the present application.

Claims

1. A high power density forced air cooled power amplifier unit, characterized by, The utility model relates to a kind of power amplifier structure, including: Control panel (12), drive power amplifier (13), 1 / 2 power divider (9), 1 / 8 power divider (2), power amplifier board (7), circulator (8), 8-in-1 combiner (3), 2-in-1 combiner (4), directional coupler (5) and radiator (6), which are integrated in the enclosed structure of structural member together; The structural member forms a platform for carrying power amplifier elements, and a plurality of 1 / 8 power dividers (2) are arranged on one side according to a predetermined array, arranged in two groups, and a predetermined interval is left between the groups; The 8-in-1 combiner (3) is arranged in the predetermined interval; The other side of the structural member is provided with a radiator (6); The two ends of the 8-in-1 combiner (3) are respectively provided with a 1 / 2 power divider (9) and a 2-in-1 combiner (4); The other end of the 2-in-1 combiner (4) is provided with the directional coupler (5).

2. The high power density forced air-cooled power amplifier unit of claim 1, wherein, The drive power amplifier (13) and the 1 / 2 power divider (9) are respectively arranged at intervals with the 1 / 8 power divider (2).

3. The high power density forced air-cooled power amplifier unit of claim 1 wherein, The circulator (8) is arranged between the 1 / 8 power divider (2) and the 8-in-1 combiner (3), and the number of circulators matches the number of 1 / 8 power dividers.

4. The high power density forced air-cooled power amplifier unit of claim 1 wherein, The 1 / 8 power divider (2) has a positive busbar and a negative busbar fixed in the corresponding array, respectively.

5. The high power density forced air-cooled power amplifier unit of claim 1 wherein, The drive power amplifier (13), the 2-in-1 combiner (4) and the directional coupler (5) are respectively located on both sides of the 1 / 8 power divider (2) array.

6. The high power density forced air-cooled power amplifier unit of claim 1 wherein, The control panel (12) and the power supply (11) are arranged on the other side of the structural member opposite to the side where the drive power amplifier (13) and the 1 / 2 power divider (9) are arranged.

7. The high power density forced air-cooled power amplifier unit of claim 1 wherein, The power amplifier board (7) is arranged in the structural member in a laying manner, and the projection of the 1 / 8 power divider (2) overlaps the normal direction of the structural member.

8. The high power density forced air-cooled power amplifier unit of claim 1 wherein, The two groups of 1 / 8 power dividers (2) are symmetrically arranged.

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