CN-121984462-A - Power synthesis method, power synthesis device and radio frequency power supply equipment

CN121984462ACN 121984462 ACN121984462 ACN 121984462ACN-121984462-A

Abstract

The application provides a power synthesis method, a power synthesis device and radio frequency power supply equipment, which are applied to a power synthesis device, wherein the power synthesis device comprises a power amplifier gating module and an impedance module, the power amplifier gating module is used for selectively switching on or switching off the connection path between each radio frequency power amplifier device and the impedance module. The power synthesis method comprises the steps of controlling and conducting connection paths between at least two radio frequency power amplification devices and an impedance module, so that at least two paths of radio frequency electric energy which are respectively output by the at least two radio frequency power amplification devices of the power amplification gating module are mixed in the power amplification gating module to obtain synthesized radio frequency electric energy. And determining a target impedance value of the impedance module according to the power value of the radio frequency electric energy which passes through the power amplifier gating module. And controlling and adjusting the impedance value of the impedance module to be a target impedance value, so that the synthesized radio frequency electric energy is output through the impedance module with the target impedance value. The application can realize the rapid power synthesis of the radio frequency electric energy.

Inventors

WANG SHUXIAO
Lin Jiongkang
CHEN YATI

Assignees

深圳市瀚强科技股份有限公司

Dates

Publication Date: 20260505
Application Date: 20260123

Claims (10)

1. The power synthesis method is applied to a power synthesis device and is characterized in that the power synthesis device is used for synthesizing radio frequency electric energy output by a plurality of radio frequency power amplification devices to obtain synthesized radio frequency electric energy, the power synthesis device comprises a power amplification gating module and an impedance module which are connected, the power amplification gating module is used for being connected with the plurality of radio frequency power amplification devices, the power amplification gating module is used for selectively switching on or switching off a connecting path between each radio frequency power amplification device and the impedance module, and when the connecting path between at least two radio frequency power amplification devices and the impedance module is switched on, the radio frequency electric energy output by the at least two radio frequency power amplification devices is synthesized, and the impedance value of the impedance module is adjustable; the power synthesis method comprises the following steps: Controlling and conducting connection paths between at least two radio frequency power amplification devices and an impedance module, so that at least two paths of radio frequency electric energy which are respectively output by at least two radio frequency power amplification devices passing through a power amplification gating module are mixed in the power amplification gating module to obtain synthesized radio frequency electric energy, and then the synthesized radio frequency electric energy is transmitted to the impedance module; Determining a target impedance value of the impedance module according to the power value of the radio frequency electric energy which passes through the power amplifier gating module correspondingly; and controlling and adjusting the impedance value of the impedance module to be a target impedance value, so that the synthesized radio frequency electric energy is output through the impedance module with the target impedance value.
2. The power synthesis method according to claim 1, wherein the preset impedance value of each radio frequency power amplifier device is equal, and the power values of the radio frequency electric energy output by each radio frequency power amplifier device are different from each other; The determining a target impedance value of the impedance module according to the power value of the radio frequency electric energy corresponding to the power amplifier gating module comprises the following steps: Obtaining the proportion and the value of at least two paths of radio frequency electric energy according to the proportion relation of the power values of at least two paths of radio frequency electric energy which pass through the power amplification gating module correspondingly; And determining a target impedance value of the impedance module according to the preset impedance value, the proportion and the value of the radio frequency power amplifier device.
3. The power synthesis method according to claim 2, wherein the ratio sum value is a sum of the ratios of the power values of the at least two radio frequency electric energy in the ratio relation, respectively, and the ratio of the radio frequency electric energy with the highest power value in the ratio relation is 1; the determining the target impedance value of the impedance gating module according to the preset impedance value, the proportion and the value of the radio frequency power amplifier device comprises the following steps: And determining the ratio of the preset impedance value to the proportional sum value of the radio frequency power amplifier device as a target impedance value of the impedance module.
4. The power combining method of claim 2, wherein the impedance module comprises an adjustable leg and a plurality of impedance legs, the adjustable leg and each impedance leg being selectively turned on or off from the power amplifier gating module, the adjustable leg having an adjustable impedance value, each impedance leg having a fixed impedance value; wherein, the controlling the impedance value of the impedance adjusting module to be a target impedance value includes: When the quantity of radio frequency electric energy passing through the power amplifier gating module is larger than a preset quantity, determining at least one impedance branch in the plurality of impedance branches as a target gating branch, and determining a compensation impedance value of the adjustable branch; and controlling each target impedance branch to be conducted with the power amplifier gating module, and controlling and adjusting the impedance value of the adjustable branch to be a compensation impedance value, wherein the impedance value of the target gating branch and the overall adjustable branch is the target impedance value of the impedance module.
5. The power combining method of claim 4, wherein controlling the impedance value of the regulated impedance module to be the target impedance value further comprises: When the quantity of radio frequency electric energy passing through the power amplifier gating module is smaller than or equal to a preset quantity, determining at least one impedance branch in the plurality of impedance branches as a target gating branch; And controlling and adjusting each target gating branch to be conducted with the power amplifier gating module, wherein the impedance value presented by the whole target gating branch is the target impedance value of the impedance module.
6. The power combining method according to claim 5, wherein the power value of the combined rf power is any one of a plurality of first power values and at least one second power value, a minimum value of the plurality of first power values is greater than a maximum value of the at least one second power value, and impedance values of different impedance branches are different; when the number of radio frequency electric energy passing through the power amplifier gating module is smaller than or equal to a preset number, determining at least one impedance branch in the plurality of impedance branches as a target gating branch comprises: When the number of the radio frequency electric energy passing through the power amplifier gating module is smaller than or equal to a preset number and the power value of the synthesized radio frequency electric energy is any one of a plurality of first power values, determining that a corresponding one of a plurality of impedance branches is a target gating branch.
7. The power synthesis method according to claim 2, wherein the power amplifier gating module includes a plurality of power amplifier gating branches and a power synthesis end, the plurality of power amplifier gating branches are connected with the plurality of radio frequency power amplifier devices in one-to-one correspondence, and the power synthesis end is selectively connected with or disconnected from each impedance branch; the control switches on a connection path between at least two radio frequency power amplification devices and an impedance module, so that at least two paths of radio frequency electric energy which are respectively output by at least two radio frequency power amplification devices of a power amplification gating module are mixed in the power amplification gating module to obtain synthesized radio frequency electric energy, and then the synthesized radio frequency electric energy is transmitted to the impedance module, and the control device comprises: And controlling and conducting at least two power amplifier gating branches to conduct connecting paths between the corresponding at least two radio frequency power amplifier devices and the impedance module, so that at least two paths of radio frequency electric energy respectively output by the corresponding at least two radio frequency power amplifier devices through the power amplifier gating module are mixed at a power synthesis end to obtain synthesized radio frequency electric energy, and then the synthesized radio frequency electric energy is transmitted to the impedance module.
8. The power synthesis device is characterized by being used for synthesizing radio frequency electric energy output by a plurality of radio frequency power amplification devices to obtain synthesized radio frequency electric energy, and comprises a power amplification gating module and an impedance module which are connected; The power amplifier gating module is connected with the plurality of radio frequency power amplifier devices, and is used for selectively switching on or switching off a connecting path between each radio frequency power amplifier device and the impedance module, and synthesizing radio frequency electric energy output by at least two radio frequency power amplifier devices when the connecting paths between the at least two radio frequency power amplifier devices and the impedance module are switched on; The impedance value of the impedance module is adjustable; The power synthesis device further comprises a control module, wherein the control module is used for controlling and conducting connection paths between at least two radio frequency power amplification devices and the impedance module, so that at least two paths of radio frequency electric energy which are respectively output by the at least two radio frequency power amplification devices and correspondingly pass through the power amplification gating module are mixed in the power amplification gating module to obtain synthesized radio frequency electric energy, the synthesized radio frequency electric energy is transmitted to the impedance module, a target impedance value of the impedance module is determined according to a power value of the radio frequency electric energy which passes through the power amplification gating module, and the impedance value of the impedance module is controlled and adjusted to be the target impedance value, so that the synthesized radio frequency electric energy is output through the impedance module with the target impedance value.
9. The power combining device of claim 8, wherein the power amplifier gating module comprises a plurality of power amplifier gating branches and a power combining end, the plurality of power amplifier gating branches are connected with the plurality of radio frequency power amplifier devices in a one-to-one correspondence manner, and the power combining end is selectively connected with or disconnected from each impedance branch; The control module is used for controlling and conducting at least two power amplifier gating branches so as to conduct a connecting path between the corresponding radio frequency power amplifier device and the impedance module, and radio frequency electric energy corresponding to the power amplifier gating module is mixed at the power synthesis end to obtain the synthesized radio frequency electric energy.
10. A radio frequency power supply device, comprising: the plurality of radio frequency power amplification devices are used for outputting radio frequency electric energy; The power combining device as claimed in any one of claims 8-9, configured to combine the rf power outputted from the plurality of rf power amplifying devices.

Description

Power synthesis method, power synthesis device and radio frequency power supply equipment Technical Field The present application relates to the field of radio frequency technologies, and in particular, to a power synthesis method, a power synthesis device, and a radio frequency power supply device. Background Currently, with the application and popularization of radio frequency technology, radio frequency power supply devices are increasingly applied to various fields. In the application process of the radio frequency power supply equipment, the radio frequency power supply equipment adopting a plurality of radio frequency power amplification devices has larger requirements, however, the radio frequency power output by the radio frequency power amplification devices has a plurality of problems in the power synthesis process, so how to realize the rapid power synthesis of the radio frequency power becomes a problem to be considered. Disclosure of Invention The application provides a power synthesis method, a power synthesis device and radio frequency power supply equipment, which can realize rapid power synthesis of radio frequency electric energy. In a first aspect, a power synthesis method is provided, where the power synthesis method is applied to a power synthesis device, where the power synthesis device is configured to synthesize radio frequency electric energy output by a plurality of radio frequency power amplification devices to obtain synthesized radio frequency electric energy, where the power synthesis device includes a power amplification gating module and an impedance module connected to each other, where the power amplification gating module is further configured to connect to the plurality of radio frequency power amplification devices, and the power amplification gating module is configured to selectively connect or disconnect a connection path between each radio frequency power amplification device and the impedance module, and synthesize radio frequency electric energy output by at least two radio frequency power amplification devices when connecting a connection path between at least two radio frequency power amplification devices and the impedance module, and an impedance value of the impedance module is adjustable. The power synthesis method comprises the steps of controlling and conducting connection paths between at least two radio frequency power amplification devices and an impedance module, so that at least two paths of radio frequency electric energy which are respectively output by the at least two radio frequency power amplification devices of the power amplification gating module are mixed in the power amplification gating module to obtain synthesized radio frequency electric energy, and then the synthesized radio frequency electric energy is transmitted to the impedance module. And determining a target impedance value of the impedance module according to the power value of the radio frequency electric energy which passes through the power amplifier gating module. And controlling and adjusting the impedance value of the impedance module to be a target impedance value, so that the synthesized radio frequency electric energy is output through the impedance module with the target impedance value. In a possible implementation manner, the preset impedance value of each radio frequency power amplifier device is equal, and the power values of the radio frequency power energy output by each radio frequency power amplifier device are different from each other. The method comprises the steps of determining a target impedance value of an impedance module according to a power value of radio frequency electric energy corresponding to the power amplification gating module, and obtaining the proportion and the value of at least two paths of radio frequency electric energy according to a proportion relation of the power values of the at least two paths of radio frequency electric energy corresponding to the power amplification gating module. And determining a target impedance value of the impedance module according to the preset impedance value, the proportion and the value of the radio frequency power amplifier device. In one possible implementation manner, the ratio sum value is a sum of the duty ratios of the power values of the at least two paths of radio frequency electric energy in the ratio relationship, and the duty ratio of the radio frequency electric energy with the highest power value in the ratio relationship is 1. The method comprises the steps of determining the ratio of the preset impedance value of the radio frequency power amplifier device to the proportion sum value as the target impedance value of the impedance module. In one possible implementation, the impedance module includes an adjustable branch and a plurality of impedance branches, the adjustable branch and each impedance branch being selectively turned on or off from the power amplifier gating module, the adjustabl