A Two-Channel Power Amplifier with a Diplexer Output

A. A. Titov

Tomsk State University of Control Systems and Radio Electronics, pr. Lenina 40, Tomsk, 634050 Russia

Received June 19, 2000

Abstract—To sum up the powers of two independent signals from a two-channel amplifier, a diplexer con-
structed with the use of small-sized directional couplers is used. The level of the intermodulation components
of the output spectrum is decreased down to –60 dB. The output power of the signals is 10 and 75 W, respec-
tively; the gain of the channel amplifiers is 40 dB; and the amplified signals are the video and audio signals of
the TV channel 12.

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