INPUT CIRCUITRY FOR TRANSISTOR POWER AMPLIFIER AND METHOD FOR DESIGNING SUCH CIRCUITRY

INPUT CIRCUITRY FOR TRANSISTOR POWER AMPLIFIER AND METHOD FOR DESIGNING SUCH CIRCUITRY

A circuit having: an input matching network, a transistor (14) coupled to an output of the input matching network; and wherein the input matching network (12) has a first input impedance when such input matching network (12) is fed with an input signal having a relatively low power level and wherein...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: TREMBLAY JOHN C, WHELAN COLIN S
Format: Patent
Sprache:eng ; kor
Schlagworte:
AMPLIFIERS
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS
RESONATORS
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Beschreibung
Zusammenfassung:A circuit having: an input matching network, a transistor (14) coupled to an output of the input matching network; and wherein the input matching network (12) has a first input impedance when such input matching network (12) is fed with an input signal having a relatively low power level and wherein the input matching network (12) has an input impedance different from the first input impedance when such input matching network (12) is fed with an input signal having a relatively high power level.