RF Electronics Chapter 9: Impedance Matching of Power Amplifiers Page 336
2022, C. J. Kikkert, James Cook University, ISBN 978-0-6486803-9-0.
a fair comparison with the transformer-matched amplifier, the gate biasing is kept at -2V.
Figure 9.54 shows the resulting values. The input and output impedances, Zg and Zl the
same values as before. The resulting gain, PAE, output power at the fundamental and
harmonics, versus input power is shown in figure 9.55. At an input of 27.31 dBm, the
gain compression is 1 dB, the output power is 94.31W, the third harmonic output is
0.159 W and the PAE is 54.34 %. Those values are significantly better than those shown
in figure 4.49.
Figure 9.54. Tuned parameters for the power amplifier with transformer matching.
Figure 9.55. Output performance of the transmission line matched power amplifier.
Figure 9.56. Frequency response of the transmission line matched power amplifier.
RF Electronics: Design and Simulation
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