Radio frequency sending method, radio frequency receiving method and radio frequency terminal

Abstract

The invention discloses a Ka-frequency-range radio frequency sending method. The method comprises the following steps: performing frequency mixing on first processing signals by use of first local oscillator signals; performing second processing on the first processing signals after the frequency mixing to obtain third processing signals; performing the frequency mixing on the second processing signals by use of frequency multiplication signals of the first local oscillator signals; and after performing third processing on the second processing signals after the frequency mixing, outputting the second processing signals in the form of Ka-frequency-range signals. The invention simultaneously discloses a Ka-frequency-range radio frequency receiving method. The method comprises the following steps: performing two-order low-noise amplification processing on receiving signals; performing frequency mixing with the receiving signals after low-noise amplification by use of second harmonics of local oscillator signals to obtain intermediate-frequency signals; and after performing bandpass filtering on the intermediate-frequency signals, outputting the intermediate-frequency signals.

Description

technical field [0001] The present invention relates to the technical field of radio frequency transceiver, in particular to a radio frequency transmission method, a radio frequency reception method and a radio frequency terminal. Background technique [0002] The Ka-band radio frequency terminal technology is the key technology of the new generation of communication satellites, and it is also one of the key technologies that my country needs to break through. Because the Ka-band communication has higher bandwidth and capacity, strong anti-interference ability, and the antenna size of the user terminal is smaller, it is convenient Due to the advantages of miniaturization and portability of the terminal, the current development trend of large-capacity communication satellites in the world is to use Ka-band satellite communication. However, the current domestic Ka-band RF terminals have insufficient gain, small dynamic range, and large size. Therefore, the development of high-p...

AI Technical Summary

Problems solved by technology

However, at present, domestic Ka-band RF terminals have insufficient gain, small dynamic range, and large volume. Therefore, the development of high-performance Ka-band RF terminals is of great significance to the development and application of new communication satellites in my country.

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