Signal splitting apparatus suitable for use in a power amplifier

摘要

Disclosed is a signal splitting apparatus useable in a power amplifier having two or more power amplifiers. The apparatus includes a direct gain component; and a derived gain component connected to the direct gain component. The derived gain component derives the derived gain by imposing a constraint which is valid over the entire dynamic range of the input signal, e.g. the sum of the power of the direct split signal and the derived split signal are constrained to be substantially equal to the power of the input signal. The use of combining additional direct gain and derived gain components, as well as a delay element, are disclosed so as to enable n-component splitting that for adaptation to different applications by the use of suitable coefficients.

主权项

1. A signal splitting apparatus suitable for use in a power amplifier having two or more power amplifier components, comprising:
a direct gain component, for receiving an input signal and for providing a direct gain which when multiplied by the input signal provides a direct split signal; and a derived gain component, for receiving a derived input signal and for providing a derived gain which when multiplied by the input signal provides a derived split signal, connected to said direct gain component.