Doherty combiner

The present invention relates to a Doherty combiner used in a Doherty power amplifier, the Doherty combiner comprising: a phase shift section connected to one end of a carrier amplifier so as to change a phase of an RF signal output from the carrier amplifier; a matching section connected to an outp...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Jang, You-Na, Lee, Dae-Ung, Koo, Seo, Kang, Tae-Hoon, Ahn, Dal, Lim, Jong-Sik, Kim, Ji-Won, Han, Sang-Min, Jang, Ik-Soo, Kim, Sung-Min, Oh, Jun-Seok, Choi, Kwan-Sun
Format:	Patent
Sprache:	eng
Schlagworte:	AMPLIFIERS BASIC ELECTRONIC CIRCUITRY ELECTRICITY
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	The present invention relates to a Doherty combiner used in a Doherty power amplifier, the Doherty combiner comprising: a phase shift section connected to one end of a carrier amplifier so as to change a phase of an RF signal output from the carrier amplifier; a matching section connected to an output terminal of the Doherty power amplifier so as to impedance-match an output of the Doherty power amplifier; and a bandwidth improvement section connected to one end of a peaking amplifier so as to change at least one of a phase bandwidth and an amplitude bandwidth of the Doherty power amplifier.