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:
Dec. 17, 2002
Filed:
Sep. 15, 1999
Yiu K. Chan, Woodinville, WA (US);
Dale Schwent, Schaumburg, IL (US);
Michael Landherr, Cary, IL (US);
Armin Klomsdorf, Spring Grove, IL (US);
Michael Hand, Boca Raton, FL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A radio frequency (RF) coupler apparatus ( ) suited for use in a multi-band wireless communication device ( ), has a termination device ( ) and couplers ( and ). Each of the couplers ( and ) has through-path coupling elements ( and ) and coupled-path coupling elements ( and ). Through-path coupling elements ( and ) pass a RF signal that is to be transmitted respective frequency bands (TX BAND , TX BAND ) within which the device ( ) operates. Coupled-path coupling elements ( and ) couple the RF signals passed by respective through-path coupling elements ( and ). The coupled-path coupling elements ( and ) and the termination device ( ) are coupled in series, thereby permitting compatibilty with a RF power detector ( ) that uses a single detection diode ( ).