Broadband Class-E Power Amplifier for HF and VHF

Broadband Class-E Power Amplifier for HF and VHF

The power amplifier described here uses a 50-V gemini MOSFET and operates in class E to produce up to 200 W from 1.8 to 128 MHz. The circuit incorporates a broadband input so that frequency changes require only retuning or switching of the output filter. The efficiency varies from 90 percent at 1.8...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: Raab, F.H.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Broadband amplifiers
class E
Filters
Frequency
Hafnium
Linearity
MOSFET
MOSFET circuits
Power amplifier
Power amplifiers
Power MOSFET
Switching circuits
VHF
VHF circuits
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Beschreibung
Zusammenfassung:The power amplifier described here uses a 50-V gemini MOSFET and operates in class E to produce up to 200 W from 1.8 to 128 MHz. The circuit incorporates a broadband input so that frequency changes require only retuning or switching of the output filter. The efficiency varies from 90 percent at 1.8 MHz to 70 percent at 128 MHz. The amplitude-modulation linearity is excellent, making it well suited for use in a Kahn-technique (EER) transmitter
ISSN:0149-645X
DOI:10.1109/MWSYM.2006.249839