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:
Oct. 04, 2016
Filed:
Feb. 14, 2008
Frederic Mercier, Saint Manvieu Norrey, FR;
Luca Lococo, Anisy, FR;
Vincent Rambeau, Cormelles le Royal, FR;
Jean-marc Paris, Benouville, FR;
Frederic Mercier, Saint Manvieu Norrey, FR;
Luca Lococo, Anisy, FR;
Vincent Rambeau, Cormelles le Royal, FR;
Jean-Marc Paris, Benouville, FR;
NXP B.V., Austin, TX (US);
Abstract
A radio frequency filter () comprises an input impedance adaption section () and a tank capacitor section (). Thereby, the capacity of the input impedance adaption section () does not comprise a fixed capacitor, it only comprises switchable capacitors. Further, the tank capacitor section () does not comprise a fixed capacitor as well it only comprises switchable capacitors. The capacity of the input impedance adaption section () can be tuned independent of the tank capacity, section capacity by means of switchable capacitors. Hence, bandwidth and frequency of the radio frequency filter can be modified independent of each other. The imput impendance adaption section () is connected in series between the input and output of the filter (). The tank capacitor section () is shunt connected between the input-output series path of the filter () and ground. Optionally a gain/attenuation adaption section () is in series connected with the imput impedance adaption section () in the input-output path of the filter ().