EMC’04/Sendai Magnetic Near-Field Distribution Measurements above a Patch Antenna using an Optical Waveguide Probe
نویسندگان
چکیده
We developed a magnetic field probe consisting of a LiNbO3 optical waveguide modulator and a loop antenna element for accurate magnetic near-field measurements in the gigahertz range. We confirmed the probe invasiveness by measuring magnetic field distributions above a patch antenna operating at 2.49 GHz using the probe. Then we compared those measured results with those for shielded loop probes. Furthermore, we compared experimental results with finite-difference timedomain (FDTD) method simulation results. Comprehensive results indicate that the optical waveguide probe is suitable for accurate magnetic near-field measurements with low disturbance of measured fields.
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