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This paper investigates the bandwidth extension of phase reference and standard, so that a group of band-limited delay-unknown multisine signals can be used to realize an equivalently time-synchronized wideband phase reference. To minimize the PAPR, the multisines are designed with Schroeder-like phase spectra. The phases of overlapping components are made identical for alignment purpose. By adjusting...
This paper presents a novel realization of nonlinear vector network analyzer (NVNA) test-bed with a new phase calibration technique, in order to characterize the multiharmonic intermodulation nonlinearity of a radio frequency (RF) power amplifier (PA) under a large-signal modulated input. The NVNA test-bed uses a step recovery diode comb generator as the phase reference, which is driven by a pulsed-RF...
This paper investigates the wideband nonlinear vector network analyzer (NVNA) phase calibration method by using a group of narrowband multisine standards and the phase alignment technique. The NVNA test-bed is obtained with a wideband multisine phase reference and a vector network analyzer (VNA), and covers a modulation bandwidth of 80 MHz on a dense spectral grid of 100 kHz. In order to calibrate...
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