Imaging of microwave intermodulation fields in a superconducting microstrip resonator
نویسندگان
چکیده
Nonlinearities give rise to intermodulation distortion in superconducting microwave devices and currently limit their use to low power applications. We have developed a cryogenic imaging technique to spatially resolve intermodulation distortion and used it to image an 8.2 GHz high temperature superconducting Tl2Ba2CaCu2O8 microwave resonator. The images reveal that the fundamental and intermodulation electric fields obey a fixed relation throughout the device. We note that further refinements of intermodulation theory in resonant devices may be required to fully describe the data. © 1999 American Institute of Physics. @S0003-6951~99!04944-X#
منابع مشابه
Microwave Intermodulation in High-Tc Superconducting Microstrip Resonators
|We present experimental results on microwave intermodulation measurements on a High Tc Superconducting band-reject microstrip resonator which exhibits unconventional 2:1 intermodulation products. We discuss unusual features of this 2:1 behavior that are uncovered by detailed frequency swept and unbalanced power measurements. We also introduce a phenomenological theory which arises from a nonli...
متن کاملSuperconducting Microstrip-Fed Antenna Coupled to a Microwave Kinetic Inductance Detector
A proper antenna to couple to a microstrip Microwave Kinetic Inductance Detector (MKID) is designed and simulated. A twin-slot microstrip-fed inline antenna is designed for frequency band of 600-720~GHz integrated with an elliptical lens and coupled to the MKID. A systematic design procedure for design of such antenna with microstrip inline feeding is presented. Whole structure of lens and twin...
متن کاملThird-order intermodulation distortion in graphene resonant channel transistors
Articles you may be interested in Enhanced force sensitivity and noise squeezing in an electromechanical resonator coupled to a nanotransistor Appl. Synchronous measurement of even and odd order intermodulation distortion at the resonant frequency of a superconducting resonator Rev. Monte Carlo based analysis of intermodulation distortion behavior in GaN–Al x Ga 1−x N high electron mobility tra...
متن کاملExtreme nonlinear phenomena in NbN superconducting stripline resonators
We study giant nonlinear phenomena that emerge near a bifurcation threshold (BT) in a microwave superconducting stripline resonator. Above the BT the system becomes astable and self-sustained modulation of the reflected power off the resonator occurs. The giant nonlinearity manifests itself in an extremely high intermodulation gain, accompanied by a very strong noise squeezing and period doubli...
متن کاملGain, noise and intermodulation in a nonlinear superconducting resonator
*Correspondence: [email protected] 2Nanostructure Physics, Royal Institute of Technology (KTH), Stockholm, Sweden Full list of author information is available at the end of the article Abstract A superconducting microwave resonator is modified with several weak links to make it nonlinear and operated as a phase-insensitive microwave amplifier. Signal gain is demonstrated by intermodulation with a...
متن کامل