Synthesis of high-linearity array structures

Kornev, V. K.; Soloviev, I. I.; Klenov, N. V.; Mukhanov, Oleg A.

doi:10.1088/0953-2048/20/11/s12

Cited by 10 publications

(4 citation statements)

References 6 publications

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“…4 shows a parallel connection of serial bi-SQUID SQIF arrays arranged in a multi-spoke wheel fashion targeting antenna applications. Several versions with different number of spokes (4,8,16,32) were implemented. The objective of these designs is to investigate shape dependences and effects of mutual coupling between different serial arrays.…”

Section: B Bi-squid Layout Designmentioning

confidence: 99%

“…The array response is measured at the dc current bias point of the array. of spokes (4,8,16,32) were implemented. The objective of these designs is to investigate shape dependences and effects of mutual coupling between different serial arrays.…”

Section: B Bi-squid Layout Designmentioning

confidence: 99%

“…One of the priority objectives in optimization and synthesis of SQUID arrays is the maximization of its linearity. Many different approaches are pursued in order to improve the linearity of SQIF arrays [32]- [37]. Recently a new approach has emerged based on the linearization of a dc SQUID cell itself.…”

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confidence: 99%

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DC and RF Measurements of Serial Bi-SQUID Arrays

Prokopenko

Mukhanov

Escobar

et al. 2013

IEEE Trans. Appl. Supercond.

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SQUID arrays are promising candidates for low profile antennas and low noise amplifier applications. We present the integrated circuit designs and results of DC and RF measurements of the wideband serial arrays based on integration of linear bi-SQUID cells forming a Superconducting Quantum Interference Filter (bi-SQUID SQIF). Various configurations of serial arrays designs are described. The measured linearity, power gain, and noise temperature are analyzed and compared. The experimental results are matched to results of mathematical modeling. A serial bi-SQUID SQIF arrays are mounted into a coplanar waveguide (CPW) and symmetrically grounded to corresponding sides of CPW. The RF output comes out from the central common line, which is also used for DC biasing and forms a symmetrical balanced output. The signal and DC flux biasing line is designed as coplanar lines passed in parallel over each bi-SQUID cell in a bidirectional fashion concentrating magnetic flux inside of each cell. Serial bi-SQUID SQIF arrays are fabricated on 5 mm x 5 mm chips using standard HYPRES niobium 4.5 kA/cm 2 fabrication process.Index Terms-noise temperature, broadband, electrically small antenna, low noise amplifier, high sensitivity, high linearity

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Section: B Bi-squid Layout Designmentioning

confidence: 99%

Section: B Bi-squid Layout Designmentioning

confidence: 99%

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DC and RF Measurements of Serial Bi-SQUID Arrays

Prokopenko

Mukhanov

Escobar

et al. 2013

IEEE Trans. Appl. Supercond.

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“…This additional inductance removes the need for feedback loop, which enforced a bandwidth restriction on the SQUID operation. Thus, the effective bandwidth of the SQUID can have significant improvement by using this bi‐SQUID architecture . Serial arrays of such bi‐SQUID structure can be designed to improve the device characteristics with emphasis on its dynamic range …”

Section: Recent Progress In Applications Of Hts and Their Integrationmentioning

confidence: 99%

Thin‐Film‐Based Integrated High‐Transition‐Temperature Superconductor Devices

Balasubramanian

Xing

Strugo

et al. 2019

Adv Funct Materials

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Since the discovery of superconductivity at temperatures above the technologically promising liquid nitrogen temperatures, applications based on superconductors have expanded and are being put to commercial use. However, superconductivity at higher temperatures typically occurs in complex materials requiring stringent material and environmental constraints. Such restraints make the realization and integration of these materials with normal materials a nontrivial aspect. In this progress report, unique features of these superconductors in terms of their synthesis, physical properties determining interface electrical transport, and their applications are discussed. A detailed progress report on these applications with remarks on efforts taken to integrate these devices with traditional platforms and semiconducting materials is provided.

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Superposition of states in flux qubits with a Josephson junction of the ScS type (Review Article)

Soroka

Korolev

Турутанов

2012

Low Temperature Physics

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The consequences of the transition to a quantum description of magnetic flux motion in the superconducting ring closed by an ScS type Josephson junction are considered. Here we review the principal results regarding macroscopic quantum tunneling (MQT) of Bose condensate consisting of a macroscopically large number of Cooper electron pairs. These phenomena are illustrated by the original data obtained from the study of MQT and coherent states in a modified flux qubit with energy level depletion ΔE01 ≈ 2·10–23 J (ΔE01/h ≈ 30 GHz). State superposition properties in a two-well potential and the issues associated with quantum measurements of local curvature of qubits’ superposition energy levels are analyzed.

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Synthesis of high-linearity array structures

Cited by 10 publications

References 6 publications

DC and RF Measurements of Serial Bi-SQUID Arrays

DC and RF Measurements of Serial Bi-SQUID Arrays

Thin‐Film‐Based Integrated High‐Transition‐Temperature Superconductor Devices

Superposition of states in flux qubits with a Josephson junction of the ScS type (Review Article)

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