| 摘要 |
A digital to analog conversion apparatus (100A) includes a plurality of gain/phase adjusters (112A, 112B, 112N) configured to receive a digital signal (114) and to output a plurality of adjusted digital input signals, a plurality of digital to analog converters (110A, 110B, 110N) coupled to respective ones of the plurality of gain/phase adjusters (112A, 112B, 112N) and configured to receive the adjusted digital input signals and to generate respective analog signals representative of the adjusted digital input signals, a plurality of phase shift elements (120A, 120B, 120N) coupled to respective ones of the plurality of digital to analog converters (110A, 110B; 110N) and configured to shift the phases of the analog signals generated by the digital to analog converters, and a combiner (130) coupled to the outputs of the plurality of digital to analog converters (110A, 110B, 110N) and configured to combine the respective phase-shifted analog signals to form an analog output signal (116). |
