A Microwave Magnetometer

1 January 1953

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in Proceedings of the IRE

Vol. 41 (1) , 100-104
https://doi.org/10.1109/jrproc.1953.274493

Abstract

Faraday rotation in ferrites at microwave frequencies is applied experimentally to a new magnetometer technique expected to attain extreme sensitivity. The microwave output voltage is linearly, related to the magnetic field. Sensitivity is a function of microwave carrier level, length and initial permeability of the ferrite rotator. Experimental response curves are given for two different rotator lengths. Magnetic increments of the order of one gamma have been detected. The prospect of attaining the extreme sensitivity inherent in the microwave magnetometer principle suggests the magnetic detection possibilities of a micro-magnetometer.

Keywords

This publication has 4 references indexed in Scilit:

The low-frequency problem in the design of microwave gyrators and associated elements
IEEE Transactions on Antennas and Propagation, 1956
Faraday Rotation of Guided Waves
Physical Review B, 1952
On the theory of ferromagnetic resonance
Physica, 1949
Demagnetizing Factors of Rods
Journal of Applied Physics, 1942