Multiband broadband radio frequency signal transmission device based on microwave photon link

Abstract

The invention provides a multiband broadband radio-frequency signal transmission device based on a microwave photon link, a first group of multiband radio-frequency signals generated by a first group of radio-frequency signal generators are synthesized into a first path of radio-frequency signal, then the first path of radio-frequency signal enters a first electro-optical modulator and is modulated to form a first optical wave signal, and then the first path of radio-frequency signal enters an optical wavelength division multiplexer for optical wavelength division multiplexing; a second group of multi-band radio frequency signals generated by a second group of radio frequency signal generators are synthesized into a second path of radio frequency signals, the second path of radio frequency signals enter a second electro-optical modulator to be modulated to form second optical wave signals, and the second path of radio frequency signals enter an optical wavelength division multiplexer to be subjected to optical wavelength division multiplexing; the first light wave signal and the second light wave signal are synthesized into a beam of light signal after being subjected to light wavelength division multiplexing, the beam of light signal is sent to the light wave demultiplexer through an optical fiber, the light wave demultiplexer decomposes the first light wave signal and the second light wave signal, and then a first group of multiband radio frequency signals and a second group of multiband radio frequency signals are obtained. According to the invention, the problem of long-distance transmission of multiband broadband radio frequency signals can be solved.

Description

technical field [0001] The present invention relates to the technical field of multi-band radio frequency signals, in particular to a multi-band broadband radio frequency signal transmission device based on microwave photonic links, which is suitable for long-distance optical fiber transmission of multi-band broadband radio frequency analog signals, high-speed and large-capacity optical fiber communication, and ultra-wideband Signal generator, microwave photonics, electronic reconnaissance, ultra-wideband radar and other technical fields. Background technique [0002] The optical fiber transmission technology of radio frequency analog signal has the advantages of wide bandwidth, long transmission distance, low loss, good concealment, no interference from electromagnetic noise, small size, light weight, and low power consumption. Therefore, the radio frequency signal optical fiber transmission technology has a wide range of application requirements and prospects in the milita...

AI Technical Summary

Problems solved by technology

[0004] The present invention proposes a multi-band broadband radio frequency signal transmission device based on microwave photonic links to solve the complex system composition, poor signal concealment, large power consumption, and complex electromagnetic compatibility design faced during long-distance wireless transmission of multi-band broadband complex radio frequency signals , poor signal fidelity, many spurious components, limited bandwidth, etc.

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