Detection of Far-Field Radio-Frequency Signals by Niobium Superconducting Quantum Interference Device Arrays

Andrade, M. C. de; Escobar, Anna Leese de; Taylor, B. J.; Berggren, Susan; Higa, Brian; Dinh, Son; Fagaly, R.L.; Talvacchio, J.; Nechay, Bettina; Przybysz, J.X.

doi:10.1109/tasc.2015.2470677

Cited by 30 publications

(19 citation statements)

References 17 publications

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“…Note, that decrease of the amplitude v * pp resulting from LR-filtering not precisely follows v pp (14). Therefore obtained expressions (48), (49) are relevant only for l ≪ 1.…”

Section: 12mentioning

confidence: 91%

“…At the same time, according to (10), the circulating current amplitude tends to zero for l → ∞, and so v pp → 0. Therefore this dependence of the amplitude on the inductance v pp (l) (14) is relevant only in the frame of validity of the proposed approach i.e. for l ≤ 1.…”

Section: Squid Voltagementioning

confidence: 99%

“…Corresponding curves are calculated using (44) and shown by lines. The dependence v * pp = v pp √ v c1 v c2 , which can be derived from the amplitude v pp in symmetrical case (14) and the voltage scaling factor (34) is presented by dots.…”

Section: 12mentioning

confidence: 99%

See 2 more Smart Citations

Analytical derivation of DC SQUID response

Soloviev

Klenov

Schegolev

et al. 2016

Supercond. Sci. Technol.

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We consider voltage and current responses formation in DC SQUID with overdamped Josephson junctions in resistive and superconducting state in the frame of resistively shunted junction (RSJ) model. For simplicity we neglect the junction capacitance and the noise effect. Explicit expressions for the responses in resistive state were obtained for a SQUID which is symmetrical with respect to bias current injection point. Normalized SQUID inductance l = 2eIcL/ (where Ic is the critical current of Josephson junction, L is the SQUID inductance, e is the electron charge and is the Planck constant) was assumed to be within the range l ≤ 1, subsequently expanded up to l ≈ 7 using two fitting parameters. SQUID current response in superconducting state was considered for arbitrary value of the inductance. Impact of small technological spread of parameters relevant for low-temperature superconductor (LTS) technology was studied with generalization of the developed analytical approach for a case of small difference of critical currents and shunt resistances of the Josephson junctions, and inequality of SQUID inductive shoulders for both resistive and superconducting states.Comparison with numerical calculation results shows that developed analytical expressions can be used in practical LTS SQUIDs and SQUID-based circuits design, e.g. large serial SQIF, drastically decreasing the time of simulation.PACS numbers: 85.25.Dq, 85.25.Am

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“…Note, that decrease of the amplitude v * pp resulting from LR-filtering not precisely follows v pp (14). Therefore obtained expressions (48), (49) are relevant only for l ≪ 1.…”

Section: 12mentioning

confidence: 91%

Section: Squid Voltagementioning

confidence: 99%

See 1 more Smart Citation

Analytical derivation of DC SQUID response

Soloviev

Klenov

Schegolev

et al. 2016

Supercond. Sci. Technol.

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“…No essential difference was observed in the tests. Moreover, the evidence of operating capability of such superconducting antennas in unshielded environment follows from the experiments in which some similar superconducting array structures were used successfully as antennas to receive both the near field and far field signals [6][7][8].…”

Section: Differential Quantum Cell Arraysmentioning

confidence: 99%

“…Practical implementation of these active ESAs is significantly simplified due to the absence of input RF line (e.g. see designs used in [6][7][8]). When integrated with a superconducting transformer (concentrator) of magnetic flux, SQA can function as active ESAs of transformer type [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

From single SQUID to superconducting quantum arrays

Kornev

Kolotinskiy

Sharafiev

et al. 2017

Low Temperature Physics

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Superconducting quantum arrays (SQAs) capable of providing highly linear voltage response to magnetic signal and high dynamic range have been suggested and developed. Base elements of the arrays, quantum cells, were devised and studied in detail. Using niobium process, SQAs with different number of the cells and prototypes of the SQA-based broadband active electrically small antennas were fabricated and tested.

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Superconductor Electronics: Status and Outlook

Braginski

2018

J Supercond Nov Magn

114

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Superconductor electronics combines passive and active superconducting components and sometimes normal resistors into functional circuits and systems that also include room-temperature electronics for amplification, power sources, necessary controls, etc., usually computer operated. Furthermore, complete systems include magnetic and electromagnetic shielding, cryogenic enclosures, and increasingly a cryocooler in self-contained units. Components or devices of low or high critical temperature superconductors include inductances (coils), passive transmission lines, resonators, antennae, filters, as well as active elements: Josephson junctions, Josephson oscillators, and superconducting quantum interference devices. Of multiple demonstrated applications, mostly but not only in science and metrology, currently most successful are voltage standards, astronomy detectors and large telescope cameras, instruments for material characterization, and magnetometers for geomagnetic prospecting. Major current efforts concentrate on energy-efficient high-end computing and quantum computing. The outcomes of these efforts are likely to be known in the course of the following decade.

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Detection of Far-Field Radio-Frequency Signals by Niobium Superconducting Quantum Interference Device Arrays

Cited by 30 publications

References 17 publications

Analytical derivation of DC SQUID response

Analytical derivation of DC SQUID response

From single SQUID to superconducting quantum arrays

Superconductor Electronics: Status and Outlook

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