阅读说明：本技术 智能射频功率源 (Intelligent radio frequency power source ) 是由 张盘龙 曲岩 胡继润 于 2020-05-13 设计创作，主要内容包括：本发明属于基本电子电路领域,涉及射频功率源功放模块的相位自动调整、增益自动调整、输出功率自动补偿、效率自动调整的解决方案。智能射频功率源,其特征在于,射频功率源功放模块的相位自动调整、增益自动调整、输出功率自动补偿、效率自动调整。本发明使射频功率源功放在不需要硬件调整的情况下实现输出相位的一致性及增益的一致性,使功放的生产、更换、维修变得简单,使不同厂家的功放组合使用变得简单可行。(The invention belongs to the field of basic electronic circuits, and relates to a solution for automatic phase adjustment, automatic gain adjustment, automatic output power compensation and automatic efficiency adjustment of a radio frequency power source power amplification module. The intelligent radio frequency power source is characterized in that the phase of a radio frequency power source power amplification module is automatically adjusted, the gain is automatically adjusted, the output power is automatically compensated, and the efficiency is automatically adjusted. The invention enables the radio frequency power source power amplifier to realize the consistency of output phases and the consistency of gains under the condition of not needing hardware adjustment, enables the production, replacement and maintenance of the power amplifier to be simple, and enables the power amplifiers of different manufacturers to be simple and feasible to be used in combination.)

1. The intelligent radio frequency power source is characterized in that the phase of a radio frequency power source power amplification module is automatically adjusted, the gain is automatically adjusted, the output power is automatically compensated, and the efficiency is automatically adjusted.

2. The intelligent RF power source of claim 1, wherein the phase adjustment unit is used to automatically adjust the output phase of the power amplifier module.

3. The intelligent RF power source of claim 1, wherein the gain adjustment unit is used to automatically adjust the gain of the power amplifier module.

4. The intelligent RF power source of claim 1, wherein the efficiency of the power amplifier module is automatically adjusted in the command state by using an efficiency adjustment unit.

5. The intelligent RF power source of claim 1, wherein the power compensation unit is used to implement automatic power compensation of the power amplifier module.

6. The intelligent RF power source of claim 1, wherein the phase, gain/power, etc. of the power amplifier unit output is detected by an output detection unit.

7. The intelligent rf power source of claim 1, wherein the centralized control unit is used to implement intelligent management of the power amplifier module.

Technical Field

The invention belongs to the field of basic electronic circuits, and relates to a solution for automatic phase adjustment, automatic gain adjustment, automatic output power compensation and automatic efficiency adjustment of a radio frequency power source power amplification module.

Background

The radio frequency power source often needs to be composed of a plurality of power amplifier modules, and when the power amplifier modules are combined for power synthesis, the phase error between the power amplifier modules is usually required to be within several degrees, and sometimes even the phase difference between input and output is required to be kept in a fixed range. Because parameters of electronic components and the like used in the production process of each power amplifier module are different, the phase error between the modules is usually larger than 10 degrees or has larger phase difference with the required phase. At present, the common method of phase adjustment is to adjust the length of a circuit or adjust a configured capacitance value according to the difference of the phase of each module, and the adjustment of the circuit or the capacitance hardware causes the length of the circuit and the related capacitance of each power amplifier module to be inconsistent, thereby bringing great inconvenience to production and use.

When a plurality of power amplifier modules are used for power synthesis, the gain of each module is deviated due to the parameter difference of electronic elements used by each module, and the quality and the working efficiency of synthesized output signals are directly influenced. Usually, the values of elements in the circuit are adjusted during debugging of the power amplifier to balance the gains among the power amplifier modules, or the power amplifiers are selected according to different gains and then grouped, and the power amplifiers with the same gain are used in the same group. The traditional modes increase the workload of debugging and assembling personnel, do not solve the problem of free matching of the power amplifier module at all, and bring great inconvenience to subsequent replacement and maintenance of the power amplifier module.

The working efficiency and the signal quality of the power amplifier module are two important indexes, and better signal quality can be achieved under the condition of sacrificing efficiency. At present, after the power amplifier is basically produced, the efficiency value and the signal index are determined, and the improvement of the working efficiency or the improvement of the signal quality in the using process cannot be met basically.

In the working process of the power amplifier module, the output power changes due to the heat generated by the power amplifier tube, etc., and in order to stabilize the output power, the cooling temperature is usually kept constant, and the output power is pulled back and kept by adjusting the input according to the feedback of the output power change. The constant temperature of the cooling temperature is high in cost and unreliable; the input is adjusted according to the output power change to maintain the stable output, and the power change caused by the temperature influence of the power amplifier tube is not solved, especially, the output is difficult to increase under the saturation working state of the power amplifier tube or when the circuit device is greatly influenced by the temperature, and the power compensation can not be really realized.

Disclosure of Invention

The intelligent radio frequency power source can realize automatic phase adjustment, automatic gain adjustment, automatic efficiency adjustment and automatic output power compensation of the power amplification module.

To achieve the above object, the present invention is composed of: 1. a phase adjustment unit; 2. a gain adjustment unit; 3. an efficiency adjustment unit; 4. a power compensation unit; 5. an output detection unit; 6. a power amplifying unit; 7. a centralized control unit.

The specific configuration and connection relation of the invention are as follows: after the radio frequency signal passes through the gain adjusting unit 2, the gain adjusting unit 1 and the phase adjusting unit, the signal amplification is realized by the power amplifying unit 6, and the amplified signal is output by the output detecting unit 5. 5. The output detection means detects signals such as phase, gain, and power, and feeds them back to the central control means 7, the central control means 4, and the power compensation means. 7. The centralized control unit sends out an adjustment instruction to the 1, the 2 phase adjustment units, the 3 gain adjustment units and the efficiency adjustment unit. 4. The power compensation unit can adjust the output of the gain adjustment unit 2 and carry out temperature compensation on the power amplification unit 6.

The invention enables the radio frequency power source power amplifier to realize the consistency of output phases and the consistency of gains under the condition of not needing hardware adjustment, enables the production, replacement and maintenance of the power amplifier to be simple, and enables the power amplifiers of different manufacturers to be simple and feasible to be used in combination. And 4, due to the use of the temperature compensation circuit in the power compensation unit, the stability of power is reliably guaranteed. 3. The efficiency adjusting unit can be used for saving energy, reducing consumption and improving benefits under the condition that a user meets performance requirements, and can also be used for selecting by sacrificing efficiency when higher signal quality is required.

Drawings

Fig. 1 is a schematic diagram of a system for power amplification of an intelligent radio frequency power source.

Detailed Description

The implementation of the invention is explained with reference to the drawings.

After the radio frequency signal passes through the gain adjusting unit 2, the gain adjusting unit 1 and the phase adjusting unit, the signal amplification is realized by the power amplifying unit 6, and the amplified signal is output by the output detecting unit 5. 5. The output detection means detects signals such as phase, gain, and power, and feeds them back to the central control means 7, the central control means 4, and the power compensation means. 7. The centralized control unit generates an adjusting signal for phase and gain through comparison operation according to the feedback signal, the phase adjusting signal is sent to 1, and the phase adjusting unit corrects the changed phase; the gain adjustment signal is sent to the gain adjustment unit 2 for gain adjustment. 4. The power compensation unit forms a power adjustment signal according to the power change information detected by the output detection unit 5, and the power adjustment signal enables the changed output power to be pulled back through the gain adjustment unit trimming gain 2; 4. the power compensation unit also outputs the feedback of temperature compensation in time according to the temperature change condition of the power amplification unit 6 to perform temperature compensation on the power amplification unit 6, so that the output of the power amplification unit 6 is stable. When the efficiency needs to be adjusted, an adjusting instruction is sent to the 7 centralized control unit, the 7 centralized control unit forms voltage adjusting information through operation and sends the voltage adjusting information to the 3 efficiency adjusting unit, and the 3 efficiency adjusting unit achieves the purpose of automatically adjusting the efficiency under the instruction by adjusting the power supply voltage. And the adjusting units of the phase, the power and the like synchronously operate while the efficiency is adjusted, and the output of the phase, the power and the like is kept unchanged.

The implementation and application of the invention realizes the consistency of the phase and the gain of each power amplifier of the radio frequency power source and the stability of the power under the automatic or instruction state, reduces the synthesis loss generated by the difference of the output power or the phase among different power amplifiers, improves the quality and the efficiency of the synthesized signal, simplifies the production, the debugging and the maintenance of the power source and can save a large amount of time. The adjustability of the efficiency also enables the power source to work in the best efficiency state according to the needs, and better economic benefits are obtained.

The above-mentioned embodiments are not intended to limit the present invention, and it will be appreciated by those skilled in the art that various changes and modifications can be made in the invention without departing from the spirit and scope of the invention.