A test-bed designed to utilize Zhu's general sampling theorem to characterize power amplifiers

  title={A test-bed designed to utilize Zhu's general sampling theorem to characterize power amplifiers},
  author={Olav Andersen and Niclas Bjorsell and Niclas Keskitalo},
  journal={2009 IEEE Instrumentation and Measurement Technology Conference},
Characterizing power amplifiers require test set-ups with performance superior to the power amplifiers. A commonly used method is to use an IQ-demodulator. However, problem arises due to imperfections in the demodulator such as IQ-imbalance; an alternative method is to use a direct down converter to intermediate frequency. The drawback then is the limited bandwidth. However, the required bandwidth of the ADC does not need to be exceptional. According to Zhu's general sampling theorem is it… CONTINUE READING


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