Multichannel radio frequency phase matching control device and method

A technology of phase matching and control device, which is applied in image communication, TV, color TV components and other directions, can solve the problem that the transceiver radio frequency link cannot be shared, and achieve the effect of reducing synthesis loss and improving synthesis efficiency.

Active Publication Date: 2011-05-25
SUNWAVE COMM +1
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Problems solved by technology

[0004] The purpose of the present invention is to overcome the problem that the transceiver radio frequency link cannot be shared when the working standard of the communication

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  • Multichannel radio frequency phase matching control device and method
  • Multichannel radio frequency phase matching control device and method
  • Multichannel radio frequency phase matching control device and method

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[0022] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and examples. It should be understood that the examples described here are only used to explain the present invention and not to limit the present invention.

[0023] The present invention provides a multi-channel radio frequency phase matching control device and method, including an input coupler, a multi-channel power divider, a phase shifter, a power amplifier, a multi-channel high-power combiner, an output coupler, and an input power detector , Output power detector and microcontroller, realize the function of multi-channel radio frequency high-power synthesis.

[0024] Input coupler and input power detector. The input coupler extracts part of the input signal and sends it to the input power detector, which converts the power of the radio frequency input signal in...

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Abstract

The invention relates to a multichannel radio frequency phase matching control device and a multichannel radio frequency phase matching control method. The multichannel radio frequency phase matching control device comprises an input coupler, a multichannel power divider, a phase shifter, a power amplifier, a multichannel high-power synthesizer, an output coupler, an input power detector, an output power detector and a microcontroller, wherein part of radio frequency signals are extracted by the input coupler to detect input power inputted into the integral device; the radio frequency signalsare divided into a plurality of branches by the multichannel power divider, and each branch of radio frequency signal is needed to be subjected to phase adjustment and power amplification by the phase shifter and the power amplifier; and after radio frequency power in all branches is added by the multichannel high-power synthesizer, all branches enter the output coupler, and the output coupler isused for extracting output signals to detect output power of the integral device. The multichannel radio frequency phase matching control device has the advantages that the phase of the radio frequency signal of each channel is consistent during power synthesis, and synthesis loss caused by phase errors is reduced.

Description

technical field [0001] The invention relates to the field of digital TV multi-channel radio frequency phase matching control, and mainly relates to a multi-channel radio frequency phase matching control device and method. Background technique [0002] Digital TV broadcasting technology (including satellite broadcasting, cable broadcasting and terrestrial broadcasting) is a high-tech developed in the last ten years. At present, it has become an important part of the global information industry including our country. The development of this technology has triggered a technological revolution in the radio and television industry. From black and white TV to color TV, broadcast TV is entering the digital age. In recent years, with the gradual maturity of power combining technology, high-power power amplifier modules are widely used in radio and television transmitters. All-solid-state transmitters have gradually developed from small powers of 100W and 300W to high powers of 1K...

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Application Information

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IPC IPC(8): H04N5/44
Inventor 吴志坚赖敏福
Owner SUNWAVE COMM
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