Circuit arrangement for impedance matching

摘要

A circuit arrangement is proposed which is used for impedance matching between a heating conductor arrangement (10) also used as antenna and an input of an antenna amplifier for the signals of the long-oblique medium-oblique short-wave broadcast band. A first collective conductor (12) of the heating conductor arrangement is connected via a capacitor (23) to an input of a step-up transformer (25). The output of the transformer is connected to an impedance converter (30) of an antenna amplifier (29) for the long-oblique medium-oblique short-wave signals. The FM signals are picked up at the second collective conductor (13) of the heating conductor arrangement and supplied, unamplified as a rule, together with the amplified long-oblique medium-oblique short-wave signals to a radio frequency receiver. <IMAGE>