Communication and radar multifunctional millimeter wave transceiver front-end system and working method

Abstract

The invention discloses a working method of a communication and radar multifunctional millimeter wave transceiver front-end system, which comprises a signal source channel consisting of a signal source and a driving amplifier, and a communication transmitting channel consisting of a single-pole double-throw switch, an upper mixer, a power amplifier and the like, the radar transmitting channel is composed of a single-pole double-throw switch, an adjustable attenuator, a power amplifier and the like, and the communication and radar receiving channel is composed of a lower mixer, a low-noise amplifier and the like. The front-end system of the communication and radar multifunctional millimeter wave transceiver has the characteristics of reconfigurable working mode, relatively simple system structure, low cost and the like, can reduce the interference between the radar mode and the communication mode to the minimum, has the potential of dynamic configuration and data fusion, and can be widely applied to the field of communication and radar communication. And dynamic deployment and balance between a radar function and a communication function are realized.

Description

Technical field [0001] The present invention relates to a millimeter wave transceiver front end system, and more particularly to a front-end system and a working method of communication, radar multifunction millimeter wave transceiver. Background technique [0002] Today's science and technology have developed rapidly, and wireless communication technology is also rapidly advanced with radar technology. During today's research, people conduct research on wireless communication technology and radar technology according to different functions. Communication is mainly used for information transmission between hardware devices, and radar is mainly used to detect the distance and speed of the target object. As the communication rate is improved, the application band of communication is constantly improving, and there is an increasing multi-band in addition to each other. Moreover, as the number of wireless devices increases, high-speed data transmission requires greater bandwidth, res...

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Problems solved by technology

[0005] However, the realization of radar communication integration faces many difficulties. Considering the application background of the millimeter-wave multifunctional integrated electronic system and the feasibility of the structure of the millimeter-wave transceiver front-end system, for example, in the single-carrier solution, the existing integrated circuit devices are insufficient. In order to achieve better interference suppression for the two modes at the same frequency; the efficiency of the millimeter-wave amplifiers that can usually be realized at present is relatively low, which will make it difficult to realize the millimeter-wave frequency band module circuit with a relatively high peak-to-average ratio; The structure of the wave band should also be as simple as possible to ensure the reliability of the system

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