Directing to the dielectricity factor calculation device in target ones, and target ones

摘要

PROBLEM TO BE SOLVED: To provide a device and method capable of calculating a dielectric constant in an object from reflection characteristics of the object speedily as numeric values by transmitting electromagnetic waves toward the object of a dielectric for receiving reflection waves.;SOLUTION: The dielectric constant calculation device includes a plurality of transmission antennas and a plurality of reception antennas for receiving reflection waves of electromagnetic waves obtained by transmitting the electromagnetic waves to an object. Based on the received reflection waves, a complex reflectance when electromagnetic waves of plane waves impinge on the surface of the object is calculated. The complex dielectric constant of the object is calculated from the calculated complex reflectance, based on conditions that a propagation formula of electromagnetic waves assuming that one portion of transmitted electromagnetic waves enters the object should satisfy. The plurality of transmission antennas and the plurality of reception antennas form a line in one direction to compose a linear array antenna.;COPYRIGHT: (C)2011,JPO&INPIT