Signal source based on phase lock and phase injection synchronization and power synthesis technology

Abstract

The invention relates to a high-power signal source based on a phase lock and phase injection synchronization and power synthesis technology. The high-power signal source comprises a phase-locked loop, an injection locked oscillator array and a power synthesizing unit. A stable initial signal is generated through the phase-locked loop, the relationship between an output signal phase and an injection signal phase in the injection locked voltage-controlled oscillator array is used for realizing the synchronization for output signal phases in the injection locked oscillator array through using the initial signal of the phase-locked loop as the injection signal, and finally, the power synthesizing unit realizes the power synthesis for the phase synchronization signals to realize the high-power signal source output. According to the signal source based on the phase lock and phase injection synchronization and power synthesis technology, the output power of the signal source is not limited by the output power of a single oscillator and is closely related to the number of the injection locked oscillators; the signal source based on the phase lock and phase injection synchronization and power synthesis technology enables the signal source output power to be greatly improved and lays a solid foundation for the solid-state Terahertz source practicability, Terahertz wave research and popularization.

Description

technical field [0001] The invention belongs to the technical field of microelectronics, and relates to a signal source based on phase-locking, injection phase synchronization and power combining technologies. Background technique [0002] Terahertz (TeraHertz, THz) wave refers to electromagnetic waves with a frequency in the range of 0.1-10THz (wavelength 0.03-3mm), and its wave band is between microwave and far-infrared light. Terahertz wave combines many advantages of microwave and infrared light wave, and has many special properties, such as transient, broadband, coherence and good penetration, etc. Therefore, terahertz frequency band is widely used in medical imaging, high-speed wireless communication, Radar remote sensing detection, anti-terrorism anti-drug and other fields have great application prospects and unique advantages. [0003] The terahertz source is the bottleneck in the realization of terahertz applications. The terahertz source based on photonics and vac...

AI Technical Summary

Problems solved by technology

However, due to the breakdown voltage of active devices and the highest oscillation frequency f max and interconnection and substrate losses, etc., the output power of solid-state terahertz sources is relatively low. Usually, the power of silicon-based terahertz signal sources is at the microwatt level, and the reported maximum power is 1mW. The extremely low output power makes The application and promotion of solid-state terahertz sources are severely limited

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