CLASS A/F AMPLIFIER WITH SECONDARY AND THIRD HARMONICS INPUT/OUTPUT FILTERING AND SELF-BIAS DISTORTION CORRECTION

CLASS A/F AMPLIFIER WITH SECONDARY AND THIRD HARMONICS INPUT/OUTPUT FILTERING AND SELF-BIAS DISTORTION CORRECTION

PROBLEM TO BE SOLVED: To provide a class A/F amplifier having linearity and power efficiency which are superior to those of a class A amplifiers. SOLUTION: This class A/F amplifier has an input filtering and matching circuit 12, an addition coupling 20, an amplifying circuit 14, a feedback filtering...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: HELMS DAVID R
Format: Patent
Sprache:eng
Schlagworte:
AMPLIFIERS
BASIC ELECTRONIC CIRCUITRY
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a class A/F amplifier having linearity and power efficiency which are superior to those of a class A amplifiers. SOLUTION: This class A/F amplifier has an input filtering and matching circuit 12, an addition coupling 20, an amplifying circuit 14, a feedback filtering bias circuit 18, and an output filtering and matching circuit 16. Since this class A/F amplifier significantly reduces higher harmonics of a radio frequency signal to cause power interferences between adjacent channels, this amplifier offers significantly improved mobile communication services having a wide communication range, and high quality communication.