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:
Mar. 16, 2010
Filed:
Mar. 05, 2007
Jose Luis Gonzalez Jimenez, Barcelona, ES;
Diego Mateo Pena, Barcelona, ES;
Enrique Barajas Ojeda, Barcelona, ES;
Ignasi Cairo, Barcelona, ES;
Masayuki Ikeda, Shiojiri, JP;
Jose Luis Gonzalez Jimenez, Barcelona, ES;
Diego Mateo Pena, Barcelona, ES;
Enrique Barajas Ojeda, Barcelona, ES;
Ignasi Cairo, Barcelona, ES;
Masayuki Ikeda, Shiojiri, JP;
Seiko Epson Corporation, , JP;
Abstract
The present invention is related to low power low noise amplifiers (LNA) including on/off switching capability, which are preferably used for impulse radio (IR) ultra-wideband (UWB) receivers. In the invention a very low power and high-gain Common-Gate Capacitive Cross Coupling Cascaded LNA is proposed, to provide an optimum gain for large ON times. The invention provides also a Common-Source Cascoded LNA for shorter received pulse widths, with the aim of implementing a fast ON/OFF switching. An input signal is applied to a first amplifying stage and the switching means are coupled to a second amplifying stage so that they do not interfere with the matching network of the first stage. The invention is also related to a method of amplifying a radio frequency signal using a plurality of low noise amplifying elements.