Planar squid magnetometer with inductively coupled microstrip re

Details Planar squid magnetometer with inductively coupled microstrip re Planar squid magnetometer with inductively coupled microstrip re

1991-04-05

1995-05-30

Strecker, Gerard R.

Superconductor technology: apparatus, material, process

High temperature devices, systems, apparatus, com- ponents,...

Measuring or testing system or device

257 33, 257 34, 324248, 324250, 324637, 333 99S, 505846, 327510, 327528, G01R 33035, H01L 3922, H01P 700

Patent

active

054201004

ABSTRACT:
A planar SQUID magnetometer for detection and measurement of an applied magnetic flux is disclosed wherein a planar microwave-resonant element overlaps a Josephson device incorporated in a high-T.sub.c superconducting, thin-film SQUID device, thereby providing inductive coupling between the planar microwave-resonant element and the SQUID device. When the microwave-resonant element is excited by incident high-frequency microwave radiation, the intensity of reflected microwave radiation varies in response to a magnetic flux applied to the SQUID device in accordance with non-linear oscillatory behavior of the microwave-resonant element due to inductive loading by the SQUID device. The microwave-resonant element and the SQUID device are preferably fabricated photolithographically on a single substrate.

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