The multilayer actuator is connected to a high-speed bipolar amplifier
(NF HSA-4011), of which output voltage is set to 0 V with different amplification levels: 10 times and 50 times.
In this article, a 2.3 to 2.5 GHz bipolar amplifier
When a bipolar amplifier
is operated in class AB, the IMD caused by a combination of the nonlinearities in the RF power transistors' transfer characteristics (both amplitude and phase) and the amplifier's circuit parameters under certain circumstances results in the amplifier falling short of the -30 dBc IMD that is required.
The radiated power of the monolithic bipolar amplifier
([V.sub.cc] = 12 V and [R.sub.bias] = 220 [omega]) in 50 [omega] microstrip line is shown in Figure 5.