NDLI: Near-field microwave location of a spherical object

Content Provider	Springer Nature Link
Author	Galin, M. A. Reznik, A. N.
Copyright Year	2009
Abstract	A theory of near-field (NF) location of a spherical object, which allows the recordable response of the NF locator (NFL) to be calculated for an arbitrary position of the object with respect to the antenna, has been developed. It is shown that the NFL response as a function of distance between the antenna and the sought object is characterized by two scales: quasi-static scale h $_{qs}$ and wave scale h $_{w}$, with h $_{w}$ > h $_{qs}$. Two-dimensional spatial distributions that are recorded by the NFL during scanning of the object are calculated. Specific features related to the excitation of the wave fields are discovered in these distributions. It has been found that the NFL resolution can be several times higher if the appropriate informative parameter is chosen. The prospects of detection of 3D contrast formations (tumors) in a human body with the aid of the NFL are studied. It is shown that tumors as small as 0.5–0.75 cm and located at a depth of up to 1 cm can be detected at optimized parameters of the device.
Starting Page	259
Ending Page	269
Page Count	11
File Format	PDF
ISSN	10642269
Journal	Journal of Communications Technology and Electronics
Volume Number	54
Issue Number	3
e-ISSN	15556557
Language	English
Publisher	SP MAIK Nauka/Interperiodica
Publisher Date	2009-03-28
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Near-field scanning microscopy and spectroscopy Telemetry: remote control, remote sensing; radar Communications Engineering, Networks
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Condensed Matter Physics Electrical and Electronic Engineering Radiation

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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