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:
Jan. 06, 2004
Filed:
Apr. 11, 2002
Applicant:
Inventors:
Clifton Quan, Arcadia, CA (US);
Brian M. Pierce, Moreno Valley, CA (US);
Assignee:
Raytheon Company, Lexington, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01P 1/18 ; H01P 3/08 ; H01P 9/00 ;
U.S. Cl.
CPC ...
H01P 1/18 ; H01P 3/08 ; H01P 9/00 ;
Abstract
A switched loop RF radiator circuit, comprising a radiator element, a RF input/output (I/O) port, and a balun coupled between the radiator element and the (I/O) port. The balun includes a 180° switched loop circuit having transmission line legs coupled to a balun transition to provide a selectable phase shift, and a microelectromechanically machined (MEM) switch Many radiator circuits can be deployed in an electronically scanned antenna array.