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. 20, 2004
Filed:
Nov. 13, 2001
Christopher Nigel Smith, Romsey, GB;
Roke Manor Research Limited, Hampshire, GB;
Abstract
An arrangement for multi-standard duplex filtering for mobile terminals in a telecommunications system. The arrangement includes a substrate on which a first array of filter elements and a second array of filter elements are formed. The filter elements have different frequency bands in accordance with mobile telecommunications standards. The first array filters an incoming signal received from an antenna and provides an output at port in accordance with a matched frequency band of one of the standards. The second array filters a signal to be applied to port in accordance with a matched frequency band of one of the standards prior to transmission through antenna. The filter elements may comprise surface acoustic wave devices formed on a single substrate.