Patent ID: 8013745

Claim:
A system configured for the assessment of a human temperature gradient between at least two points at different radial depths of a human subject, the system comprising a passive microwave receiver for operation within a selected microwave frequency range of a plurality of WARC protected microwave frequency ranges, each WARC protected microwave range having a bandwidth, whereby the lower the selected microwave frequency range, the greater the depth of penetration for passive receipt of a noise signal from the human subject, a bandwidth of the selected microwave frequency range comprising at least two noise measuring channels, the passive microwave receiver comprising a directional antenna configured for radial direction toward a specific location on the skin surface of the human subject and toward a human body part comprising one of an ear, the hypothalamus, the nasopharyngeal cavity, the rectum, a breast, the heart, an arm, a hand, a leg, a foot and the tongue, wherein the selected WARC protected microwave frequency range comprises one of 1.400 to 1.427 GHz, providing a 27 MHz bandwidth; 2.690 to 2.700 GHz, providing a 10 MHz bandwidth; 10.680 to 10.700 GHz, providing a 20 MHz bandwidth; and 23.600 to 24.000 GHz, providing a 400 MHz bandwidth and the at least two noise measuring channels are configured to detect respective noise signals for assessment of the human temperature gradient between the at least two points at different radial depths of the human subject.