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IEEE International Superconductive Electronics Conference (ISEC)

Superconducting Quantum Arrays for broadband RF systems

Victor K. Kornev, Aleksei Sharafiev, Igor I. Soloviev, Oleg A. Mukhanov

Published Jul 1, 2013• 5 citations
Publisher

Abstract

Superconductive Quantum Arrays (SQA) are suggested for the implementation of broadband radio frequency systems capable of providing highly linear magnetic signal to voltage transfer with high dynamic range. Possible basic cells of the arrays and their attainable characteristics are considered. Results of experimental studies and possible applications are presented and discussed.

DOI
10.1109/isec.2013.6604300

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Using numerical simulation, we investigate the output power and loading tradeoffs for Superconducting Quantum Arrays (SQAs) suggested for the implementation of broadband radio-frequency systems, including active electrically small antennas capable of providing highly linear transfer characteristics with a high dynamic range. Standard matching loads used for linear microwave networks, including passive antennas, are not applicable for the active SQA-based circuits generally due to the strong shunting effect restricting the attainable linearity. At the same time, the output power of an active device can be increased by a power supply even for the impedance-mismatched circuits. Both the optimum achievable balance of the shunt effects and getting the required output power are analyzed and discussed in detail.
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