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. 05, 1996
Filed:
Aug. 04, 1994
Applicant:
Inventors:
Gerhard Lohninger, Munich, DE;
Walter Zimmermann, Dorfen, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S / ;
U.S. Cl.
CPC ...
342175 ; 342 28 ; 455327 ;
Abstract
A Doppler radar module constructed using micro-stripline technology is used in motion sensors and includes a local oscillator stabilized with a dielectric resonator that feeds a microwave antenna via a mixer that is connected in series. The transmission signal is emitted from the microwave antenna and is reflected back from an object where it is received by the antenna and forwarded to the mixer. The mixer mixes the reflected signal with a portion of the oscillator signal to form a Doppler signal.