Patent ID: 9065391
Filing Date: 2015-06-23
Classification: H01L,H03F

Abstract:
1. A wideband radio frequency (RF) power amplifier (PA) comprising: an amplifier configured to amplify a radio frequency signal to generate an amplified RF signal with a fundamental frequency; an output matching network configured to wave shape the amplified radio signal over a least an octave of bandwidth to create a wave shaped RF output, wherein the output matching network further comprises: a first tuning stub configured to tune the amplified RF output at the second harmonic of the fundamental frequency, the first tuning stub including a conductive meandering first line; a second tuning stub configured to tune the amplified RF output at the third harmonic of the fundamental frequency, the second tuning stub including a conductive meandering second line; a third tuning stub configured to tune the amplified RF output at the fourth harmonic of the fundamental frequency, the third tuning stub including a conductive meandering third line; and a fourth tuning stub configured to tune the amplified RF output at the fifth harmonic of the fundamental frequency, the fourth tuning stub including a conductive meandering fourth line.