Patent ID: 6084551
Filing Date: 2000-07-04
Classification: G01R,H01Q

Abstract:
An electromagnetic probe for the detection of E-field and H-field radiation, the probe comprising:a quasi-isotropic E-field antenna, the quasi-isotropic E-field antenna including three mutually orthogonal surface area sensor elements, the three mutually orthogonal surface area sensor elements including a first surface area sensor element, a second surface area sensor element and a third surface area sensor element, each of the three mutually orthogonal surface area sensor elements being parallel to one of three mutually perpendicular planes of a Cartesian coordinate system, the Cartesian coordinate system including an x axis, a y axis, a z axis and an origin, the three mutually perpendicular planes being an x-y plane, an x-z plane and a y-z plane, the first surface area sensor element being parallel to the x-y plane, the second surface area sensor element being parallel to the x-z plane, the third surface area sensor element being parallel to the y-z plane, the origin of the Cartesian coordinate system defining an apex of the quasi-isotropic E-field antenna, each of the three mutually orthogonal surface area sensor elements being responsive to E-field radiation incident to the respective surface area sensor element and producing an output signal proportional thereto; anda quasi-isotropic H-field antenna, the quasi-isotropic H-field antenna including three mutually orthogonal loop antenna elements, the quasi-isotropic H-field antenna being situated externally to the quasi-isotropic E-field antenna, the quasi-isotropic H-field antenna being situated above the apex of the quasi-isotropic E-field antenna, each of the three mutually orthogonal loop antenna elements being responsive to H-field radiation incident to the respective loop antenna element and producing an output signal proportional thereto.