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Accession Number ADA571053
Title Development of RF Sensor Based on Two Cell Squid.
Publication Date Apr 2010
Media Count 16p
Personal Author A. Ustinov M. He
Abstract Proposed to develop and investigate a sensitive microwave sensor based on a two-cell SQUID by imitating the operational principle of the fly's ears. The fly ormia shows astonishing localization ability with its tiny hearing organ. We show first measurement results based on several available Josephson junction (JJ) circuits. We investigated the current-voltage characteristics as a function of external magnetic field. We have also developed a new experimental setup for applying microwave signals with controllable phase shift and observed the response of the SQUID circuits to small variations of the phase and/or amplitude of two microwave signals coupled off-chip. We find that the dc voltage of the studied two-cell SQUID varied by 0.02 micro-V under the change of the phase difference of the microwave radiation signal by 1 degree. Furthermore, we designed new specially tailored SQUID circuits dedicated for measurements of the microwave phase difference between two incoming signals.
Keywords Circuits
Incident angles
Josephson junctions
Magnetic fields
Microwave equipment
Perturbation solution
Phase shift
Single cell squids
Sqif(Superconducting quantum interference filters)
Squids(Superconducting quantum interference devices)

Source Agency Non Paid ADAS
NTIS Subject Category 49 - Electrotechnology
46 - Physics
Corporate Author Karlsruhe Univ. (Germany, F.R.).
Document Type Technical report
Title Note Interim rept. 1 Jan-31 Dec 2009.
NTIS Issue Number 1315
Contract Number FA8655-09-1-3097

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