Two tone response in Superconducting Quantum Interference Filters
arXiv:cond-mat/0608562 · doi:10.1109/TASC.2007.898036
Abstract
We successfully exploit the parabolic shape of the dc voltage output dip around B=0 of a Superconducting Quantum Interference Filter (SQIF) to mix weak external rf signals. The two tone response of weak time harmonic electromagnetic fields has been detected on the spectral voltage output of the SQIF at frequency f_0 = f_1 - f_2, for various frequencies f_1 and f_2 ranging from few MHz up to 20 GHz. The two tone response is a characteristic function of static magnetic field B and of bias current I_b, related to the second derivative of the dc voltage output.
4 pages, 5 figures, submitted to Applied Superconductivity Conference 2006
References in corpus (4)
- Disorder Effects in Superconducting Multiple Loop Quantum Interferometers
- Nonperiodic Flux to Voltage Conversion of an Arithmetic Series Array of dc SQUIDs
- High performance magnetic field sensor based on Superconducting Quantum Interference Filters
- Quadratic Mixing of Radio Frequency Signals using Superconducting Quantum Interference Filters
Cited by in corpus (4)
- Realization and modeling of rf superconducting quantum interference device metamaterials
- Development of 2D Bi-SQUID Arrays with High Linearity
- High-Tc Superconducting Quantum Interference Filters (SQIFs) made by ion irradiation
- Static and Radio-frequency magnetic response of high Tc Superconducting Quantum Interference Filters made by ion irradiation