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:
Dec. 26, 2006
Filed:
May. 19, 2003
Niels Kramer, Nijmegen, NL;
Ronald Koster, Nijmegen, NL;
Rob Mathijs Heeres, Nijmegen, NL;
John Joseph Hug, Nijmegen, NL;
Niels Kramer, Nijmegen, NL;
Ronald Koster, Nijmegen, NL;
Rob Mathijs Heeres, Nijmegen, NL;
John Joseph Hug, Nijmegen, NL;
NXP B.V., Eindhoven, NL;
Abstract
An RF power amplifier according to the invention comprises a plurality of parallel output transistors (HBT,to HBT,,N) connected to a power supply. A plurality of base resistors (Rb,to Rb,,N) for the output transistors (HBT,to HBT,,N) and a plurality of input capacitors (Cb,to Cb,N), each coupled in parallel to receive an RF signal input and connected via at least one additional passive component to the inputs of each corresponding output transistor (HBT,to HBT,,N), are provided An output for an RF output signal is obtained from the parallel connection of the output transistors (HBT,to HBT,,N). The transistors (HBT,to HBT,,N) are heterojunction bipolar transistors.