METHOD AND SYSTEM FOR TRANSMITTING SIGNALS WITH REDUCED SPURIOUS EMISSIONS

摘要

An RF power amplifier architecture minimizes spurious emissions by breaking the transmitted signal into narrow spectrum sub-bands, amplifying each separately, and then combining the signals for transmission purposes.

主权项

1. A system comprising:
a plurality of digital-to-analog (D/A) converters, each of the plurality of DI A converters configured to receive one of a plurality of sub-bands of an input signal; a plurality of amplifiers, each of the plurality of amplifiers in signal communication with one of the plurality of D/A converters and configured to receive a signal generated by the one D/A converter of the plurality of D/A converters with which the amplifier is in signal communication; a combiner in signal communication with each of the plurality of amplifiers, the combiner configured to vary the amplitude and phase of a plurality of signals and to combine the plurality of signals into a single signal, each of the plurality of signals being received from one of the amplifiers; and a first antenna in signal communication with the combiner, the antenna configured to receive the single signal generated by the combiner and to transmit the single signal over the air.