Novel silicon-based terahertz active array imaging technology based on principle of regenerative reception

Abstract

The present invention discloses novel silicon-based terahertz active array imaging technology based on principle of regenerative reception. A transmitting and receiving separation structure is adoptedin an imaging array framework. The transmitting and receiving separation structure comprises a transmitting circuit and a receiving circuit. According to the transmitting circuit, multiple oscillators are adopted to form a coupling array on a chip to improve the transmission power, each oscillator and the corresponding antenna form a radiation unit, and clock synchronization and phase control arerealized by using the coupling array and a coupling network. According to the receiving circuit, high performance reception is realized based on the principle of the regenerative reception. Accordingto the technology, the problems of low transmission power, poor clock synchronization, high reception noise and poor array efficiency of the conventional terahertz imaging array are effectively solved, and the high-performance terahertz imaging array design is realized.

Description

technical field [0001] The invention relates to the technical field of terahertz imaging chips and transceiver arrays, in particular to a new silicon-based terahertz active array imaging technology based on regenerative receiving principles. Background technique [0002] Based on the development of a complete millimeter wave transceiver system, most of the modules of the terahertz band transceiver system with excellent performance have been available. However, the frequency source synchronization problem in the imaging array, the low-noise reception problem in the terahertz frequency band, and the single-chip integrated array efficiency problem are still difficult to solve. [0003] At present, most terahertz detectors adopt the mode of incoherent direct detection. In this mode, the output power decreases rapidly with the increase of input power. Compared with the zero-IF and low-IF structures, the coherent heterodyne structure has the advantages of high adjacent channel se...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a new silicon-based terahertz active array imaging technology based on the principle of regenerative reception to solve the problems of frequency source synchronization and transmission power of traditional terahertz imaging arrays. , low-noise reception and array efficiency issues to achieve high-sensitivity terahertz signal reception and low-noise detection, to achieve terahertz single-chip high-efficiency array integration, and to achieve self-interference suppression of terahertz transceiver links

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