BJT Fifth-Harmonic Peaking Cla...

BJT Fifth-Harmonic Peaking Class F Power Amplifier Chapter 5 BJT FIFTH-HARMONIC PEAKING CLASS F POWER AMPLIFIER

1.

ESB STRUCTURE AS AMPLIFIER OUPUT NETWORK

The fifth-harmonic peaking class-F power amplifier operated at 1GHz was designed using the presented in Chapter 4 double-period microstrip ESB structure. The three-section ESB was used as the output network. Equivalent circuit of the amplifier concerned is shown in Fig. 5-1.
VCC

Figure 5-1. The equivalent circuit of fifth harmonic peaking class-F power amplifier.

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Table 5-1. BFP-490 model parameters* Parameter Value Parameter bf 114.96 nc br 21.04 ne cbc 2.2fF nf cbe 150.0fF nr cce 500.0fF ptf cjc 6.1521fF rb cje 1.227fF rbm eg 1.11 rc2 ikf 0.76939 re1 ikr 0.09033 tf irb 0.17683mA tnom is 0.451fA tr isc 3.7479fA va ise 1.591fA vb itf 3.2793mA vjc lb 1.15nH vje lc 0.59nH vtf