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:
May. 17, 2016
Filed:
Jul. 18, 2014
The Regents of the University of California, Oakland, CA (US);
Mau-Chung Frank Chang, Los Angeles, CA (US);
Adrian J. Tang, Pasadena, CA (US);
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, Oakland, CA (US);
Abstract
A sub-carrier successive approximation (SCSA) radar having a sufficiently high accuracy to capture 3D images of concealed objects. The invention is phase-based, and directly measures round trip time by estimating the phase delay of the carrier. One of its advantages is that the carrier does not need to sweep across a wide frequency range, thereby relaxing RF front-end bandwidth and linearity requirements. SCSA radar accuracy is limited only by the extent of system noise, allowing very high accuracy to be achieved with a sufficient integration period. The SCSA radar can be readily implemented in CMOS, as well as other device technologies, and fabricated within one or more small integrated circuits.