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. 07, 2008
Filed:
Sep. 08, 2003
Hoon-tae Kim, Yongin, KR;
Gea-ok Cho, Yongin, KR;
Hoon-tae Kim, Yongin, KR;
Gea-ok Cho, Yongin, KR;
Samsung Electronics Co., Ltd., Suwon, Kyungki-do, KR;
Abstract
A multiband RF transmitting and receiving apparatus and a method therefore is capable of using a control voltage from a phase locked loop (PLL) to control other components, as well as a voltage controlled oscillator (VCO), of a multiband RF transceiver. The multiband transmitting and receiving apparatus adjusts a capacitance value of a varactor in a power amplifier (PA) and a low noise amplifier (LNA) including an LC parallel resonance circuit, respectively, using the control voltage from the PLL and controls a current flowing to a mixer. Accordingly, the components in the multiband RF transceiver are able to operate a greater number of frequency bands than a single frequency band, thereby reducing the number of components required to design the multiband RF transceiver.