Terahertz oscillating circuit based on resonant tunneling diode, and oscillator

Abstract

The invention belongs to the technical field of terahertz, and mainly provides a terahertz oscillating circuit based on a resonant tunneling diode, wherein the resonant tunneling diode is used for providing negative resistance, a first resistor is used for providing bypass shunting, a first capacitor is used for filtering parasitic resistance in the terahertz oscillating circuit and a parasitic low-frequency oscillating signal generated by the parasitic resistance, after a working bias voltage is added to the two ends of the resonant tunneling diode, the resonant tunneling diode works in a negative resistance area, so that the terahertz oscillating circuit generates continuous oscillation to generate the oscillating signal and drives a load to radiate the oscillating signal outward, the terahertz oscillating circuit works at the room temperature to generate the terahertz radiation and has the characteristics of relatively low power consumption and high stability, and the following problem is solved: the existing terahertz radiation source requires low-temperature cooling in use because of a relatively large volume, such that that the service life of the device is relatively short,and the development and application range of the terahertz radiation source is greatly limited.

Description

technical field [0001] The invention belongs to the technical field of terahertz, and in particular relates to a terahertz oscillation circuit and an oscillator based on a resonant tunneling diode. Background technique [0002] Terahertz waves refer to electromagnetic waves with a frequency in the range of 0.1 to 10 THz and a wavelength between 30 micrometers and 3 millimeters, which is between microwaves and the optical spectrum (far infrared). Terahertz waves are widely used in aerospace, marine engineering equipment, security, medical and other fields because of their narrow pulse width, high bandwidth, low photon energy, and the ability to penetrate most non-metallic, non-polar substances, and dielectric materials. [0003] However, the existing terahertz radiation sources are large in size, require cryogenic cooling during use, and have short device life, which greatly limits the development and application range of terahertz radiation sources. Contents of the inventi...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a terahertz oscillation circuit and oscillator based on resonant tunneling diodes, aiming at solving the problem that the existing terahertz radiation sources are large in size, require low-temperature cooling during use, and have short service life of the device, which is extremely Problems that limit the development and application range of terahertz radiation sources

Images