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:
Mar. 02, 1976
Filed:
Jul. 28, 1971
Paul M Danzer, Norwalk, CT (US);
Giles E Rae, Ridgefield, CT (US);
United Technologies Corporation, Hartford, CT (US);
Abstract
In the measurement of the phase difference (proportional to the elevation angle of a target) provided by the radar target signals that are received by each antenna of an antenna array, a comparison of the responses of the signal processing circuitry to the radar target signals and to two signals with an adjustable known phase difference, causes the known phase difference to change until the result of the comparison is a null. The known phase difference, at the time that the comparison provides a null, is equal to the phase difference provided by the radar target signals and is independent of phase errors introduced by the processing circuitry.