Michael G Hand

US Patent:

6496708, Dec 17, 2002

Filed:

Sep 15, 1999

Appl. No.:

09/396384

Inventors:

Yiu K. Chan - Woodinville WA
Dale Schwent - Schaumburg IL
Michael Landherr - Cary IL
Armin Klomsdorf - Spring Grove IL
Michael Hand - Boca Raton FL

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H04B 138

US Classification:

455553, 455115, 455127, 333109, 330126

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 ( ).

US Patent:

20140363595, Dec 11, 2014

Filed:

Aug 23, 2014

Appl. No.:

14/466967

Inventors:

- Chicago IL, US
Juan C. Guzman - Seattle WA, US
Michael Leslie Hand - Chicago IL, US

International Classification:

B32B 3/20
B32B 3/06
B64C 1/06

US Classification:

428 341, 428 57

Abstract:

Fluted core sandwich panels are joined together to form a composite structure. Variations in panel ends are accommodated by a core stiffener insert installed in a joint between ends of the panels.