
261
exPerimental results
used, the reduction in ACLR was –41 dBm and the EVM was 2.1%.
eresults show the improvement when using the CGMP technique
over the memory polynomial technique (Ding et al., 2006).
In Figures8.7 and 8.8, the power spectral density is shown, which is
the same as in Figure8.5b and Figure8.6b, but here just the spectrum
Center: 2.4 GHz
RBW: 3.1828 kHz
Span: 5 MHz
TimeLen: 1.2 mSec
–8
dBm
dBm
dB/div
8
–88
B: Ch1 Spectrum Range: 20 dBm
Figure 8.7 Power spectral density of the ZVE-8G power amplifier without CGMP.
Center: 2.4 GHz
RBW: 3.1828 kHz
Span: 5 MHz
TimeLen: 1.2 mSec
–8
dBm
dBm
dB/div
8
–88
B: Ch1 Spectrum Range: 20 dBm
Fig