The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 16, 2009
Filed:
Aug. 15, 2005
Ralph Mende, Braunschweig, DE;
Marc Behrens, Königslutter, DE;
Ralph Mende, Braunschweig, DE;
Marc Behrens, Königslutter, DE;
S.M.S. Smart Microwave Sensors GmbH, Braunschweig, DE;
Abstract
For detection of an electromagnetic signal, which is transmitted from a transmitting antenna (), by means of at least two at least essentially identical receiving antennas (), whose sensitivity curve has a maximum (M) with falling flanks as well as sidelobes (SL) adjacent to it with sensitivity increased again at a reception angle symmetrically with respect to a basic alignment, with angle determination for an object which reflects the transmitted signal being carried out by the two receiving antennas () by phase determination in an unambiguous interval (θ) whose boundaries (L) are predetermined by the distance (d) between the receiving antennas (), the distance (d) is chosen such that the boundaries (L) of the unambiguity area (θ) intersect the sidelobes (SL), and the reflective object is detected by means of vectorial addition of the signals from the receiving antennas (), after which the parameters R, v are determined.