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Updated: Jun 2, 2026

Frequency Mixing Magnetic Detection Scanner for Imaging Magnetic Particles in Planar Samples
Published on: June 9, 2016
Integrated optics magnetic sensor from 2 kHz to 9 GHz
Bao Sun1, Fushen Chen, Kaixin Chen
1School of Communication and Information Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China. sunbao@uestc.edu.cn
Abstract:
A new type of integrated optical magnetic field sensor is presented in this paper. The proposed sensor consists of a Mach-Zehnder waveguide interferometer and a doubly loaded loop antenna. Such a structure can successfully avoid detection of the undesired electric field signal. The size of the sensor is 35 mm×6 mm×1 mm. The measurements show that the frequency response is from 2 kHz to 9 GHz, the dynamic range is 98 dB, and the minimum detectable magnetic field is 51.8 μA/m at 1 GHz. Therefore, this sensing system can be used in electromagnetic compatibility measurements.

