Wide band transmitter end stage for short wave range

The transmitter end stage includes a push-pull transistor stage and a push-pull output transformer. A following harmonics filter is formed by a frequency filter with a low pass (1) and a high pass (2). The low pass output (3) feeds the transmitter end stage active load. The high pass feeds an harmon...

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Bibliographische Detailangaben
Hauptverfasser:	SOELLNER, HELMUT., 89231 NEU-ULM, DE, ESPRESTER, RALF., 89160 DORNSTADT, DE, SIGLOCH, FERDINAND., 89143 BLAUBEUREN, DE
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	BASIC ELECTRONIC CIRCUITRY ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS RESONATORS TRANSMISSION
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	The transmitter end stage includes a push-pull transistor stage and a push-pull output transformer. A following harmonics filter is formed by a frequency filter with a low pass (1) and a high pass (2). The low pass output (3) feeds the transmitter end stage active load. The high pass feeds an harmonics absorber (4) which forms a real ohmic resistor. Preferably, the high pass is so designed that the impedance of the harmonics absorber is transformed to the power FETs (5,7) in a purely real or in a complex manner.