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:
Apr. 17, 2007
Filed:
Jun. 27, 2003
Kevin Robert Boyle, Horsham, GB;
Wilhelmus Mathias Clemens Dolmans, Eindhoven, NL;
Lukas Leyten, Einhoven, NL;
Peter Johan Massey, Horley, GB;
Kevin Robert Boyle, Horsham, GB;
Wilhelmus Mathias Clemens Dolmans, Eindhoven, NL;
Lukas Leyten, Einhoven, NL;
Peter Johan Massey, Horley, GB;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
The invention relates to an antenna diversity comprising a first and a second antenna element where the first antenna element is operated in an active mode whereas the second antenna element is operated in a parasitic mode. The present invention minimizes the amount of mismatch while still being able to maximize a predetermined signal quality criterion for the electromagnetic signal on the active path between the first antenna element and the transceiver. By providing a pre-selection unitas well as a selection unitfor selecting an optimal adjustable impedance connected to the second antenna ensuring that the amount of said mismatch is below a predetermined threshold value and that simultaneously a predetermined quality criterion for the transceived electromagnetic signal is fulfilled best within the range determined by the allowable mismatch. The invention further relates to a method for operating such an antenna diversity.