ETS-Lindgren 8100-040, Руководство пользователя

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www.ets-lindgren.com Introduction
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1.0 Introduction
The ETS-Lindgren Model 8100-041 RF Power Amplifier can deliver an output
power of 25 W over the frequency range of 700 to 6000 MHz.
The five-stage solid-state amplifier is of modular design and integrated into one RF
module featuring a high linearity and a flat frequency response.
In order to achieve a stable output power, the bias of the amplifier stages is controlled
by low-drift voltage regulators.
The maximum input power for achieving the nominal output power is 0 dBm
corresponding to 1 mW or 0.224 V into 50

. Due to its gain reserve, the amplifier
usually achieves full output power with an input power of -5 dBm.
The final stage is separately protected against overload by current limitation. The
amplifier is protected against open circuit and short circuit at the output. By using
suitable transistors and a special circuit design in the final stage, even a total
mismatch at the output will not cause any damage. For a VSWR

2:1 the maximum
power can be obtained, all specifications being met.
The amplifier housing is designed to ensure minimum RF leakage and high RF
immunity. The module is supplied with DC voltage via RF feed through filters.
In order to protect the amplifier against thermal overload in case the blower fails or
the ambient temperature is too high, a temperature sensor is mounted on the heat
sink in the vicinity of the final stage.