Patent ID: 6806768
Filing Date: 2004-10-19
Classification: H03F

Abstract:
A power amplifier circuit arrangement, comprising:a first circuit element which receives an input signal, said first circuit element producing an in-phase signal and an out-of-phase signal; a first power amplifier which receives and amplifies said in-phase signal; a second power amplifier which receives and amplifies said out-of-phase signal; a first switch which alternately connects an isolated port of said first circuit element between ground and a bypass path; a second circuit element which receives and combines said amplified in-phase signal and said amplified out-of-phase signal; a second switch which alternately connects an isolated port of said second circuit element to ground or said bypass path; a band-pass filter which receives a signal and outputs a band-passed signal; and a driver stage which receives said band-passed signal and produces said input signal to be transmitted to said first circuit element.