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. 07, 2009
Filed:
Dec. 17, 2004
Hiroshi Okabe, Tokyo, JP;
Hidetoshi Matsumoto, Tokyo, JP;
Hiroshi Okabe, Tokyo, JP;
Hidetoshi Matsumoto, Tokyo, JP;
Renesas Technology Corp., Tokyo, JP;
Abstract
An RF circuit module, in which a power amplifier and a transceiver are united, with reduced interference between its electronic circuit blocks, downsized and still having high performance, and with a stable performance not dependent on the ground land structure on the motherboard, is provided. The ground planefor at least a last-stage amplifierof the power amplifierwhere the greatest power is generated in the whole RF circuit block, that is, the source of generating the greatest noise and heat for the RF circuit block, is isolated from the ground plane for at least one circuit portion of the transceiverincluding an LNA, receiver, transmitter, and VCO. These ground planes are connected to a common ground planethrough different connection conductors, respectively.