| 摘要 |
The present invention relates to a Multi Carrier Power Amplifier, MPCA, comprising a number of parallel Multi Carrier Power Amplifiers (20', 20'', 30', 30''), each comprising an amplification loop (Loop 1) and an error cancellation loop (Loop 2), said amplification loop comprising at least a first gain and phase control network (21', 21'', 31', 31'') and a first amplifier (23', 23'', 32', 32'') and a second amplifier (24', 24'', 34', 34''). The MPCA comprises an external loop comprising a second Spread Spectrum Signal (210, 310) added to said each first loop.
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