Ultra high frequency harmonic mixer circuit using superconducting quantum interference device (SQUID)

摘要

The present invention relates to a super high frequency harmonic mixer using a SQUID which generates a harmonic component of a local oscillator (LO) signal using a flux-to-voltage conversion characteristic of a superconducting quantum interferometer device (SQUID) Circuit.;The present invention relates to a SQUID which applies an RF signal to a magnetic flux of an LO signal frequency to perform frequency mixing and a current applying unit and a ground unit which apply a dc current to one side of the SQUID and ground the other side to provide an operating current to the SQUID, An RF antenna unit that is formed on the current application unit and the ground unit side of the SQUID to supply an RF signal to the SQUID, an LO signal source that applies an LO signal to the SQUID, and an antenna unit that detects an IF signal mixed in the SQUID IF signal detection section, it is possible to control the frequency and flux intensity of the LO signal by using the flux-to-voltage conversion characteristics of the SQUID using the superconducting junction to generate a very high-order LO harmonic, It is.