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:
Jul. 20, 1999
Filed:
Nov. 21, 1997
Applicant:
Inventors:
Barry Ephgrave, Stevenage, GB;
David Skidmore, Stevenage, GB;
John Anderson, Stevenage, GB;
Stanley W Waterman, Hitchin, GB;
Assignee:
Matra BAe Dynamics (UK) Limited, Hertfordshire, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S / ; H01P / ;
U.S. Cl.
CPC ...
342200 ;
Abstract
A combined duplexer/mixer (2) for use with FMCW radar systems has a waveguide section (12,13) containing a fin-line structure (17,18) for responding to the linearly polarized radar return signal while permitting passage of the orthogonally polarized transmitted signal (T). A portion of the transmitted signal is extracted by a patch antenna (22), this extracted signal forming a local oscillator signal for mixing with the return.