Amplifier arrangement

摘要

An amplifier arrangement for amplifying a radio signal comprising at least a first amplifier module and a second amplifier module is presented wherein a splitter stage for dividing an amplifier stage input signal into several signal portions. The signal portions are amplified in the at least two parallel amplifier modules. A combiner stage combines the separate amplifier output signals into a single amplifier arrangement output signal.

主权项

1. An amplifier arrangement for amplifying a radio signal in a mobile communication network comprising:
a splitter stage for splitting an amplifier input radio signal into at least a first signal portion, and at least a second radio signal portion; at least a first amplifier module comprising:
a first delta-sigma modulator for converting the first radio signal portion to a first modulated binary signal; and a first delta-sigma modulator driven amplifier for amplifying the first modulated binary signal; at least an independent second amplifier module comprising:
a second delta-sigma modulator for converting the second radio signal portion to a second modulated binary signal; and a second delta-sigma modulator driven amplifier for amplifying the second modulated binary signal; a combiner stage for combining the amplified first modulated binary signal, received at a first combiner stage input, and the amplified second modulated binary signal, received at a second signal combiner input, into a amplified stage output radio signal; and a power distributor for independently switching on and off a first power supply for the first amplifier module and a second power supply for the second independent amplifier module depending on a desired output power.