Note on the Determination of the Offset Lines in Doherty Power Amplifiers

This letter shows how to find by inspection, the values of the characteristic impedances and the electrical lengths of the offset lines of the main and auxiliary amplifiers constituting a Doherty power amplifier. This letter focuses on the easiest determination of these offset lines using the ABCD m...

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Veröffentlicht in:	IEEE microwave and wireless components letters 2018-06, Vol.28 (6), p.533-535
Hauptverfasser:	Neveux, Guillaume, Rifi, Mohamed Aziz, Barataud, Denis, Ayad, Mohammed, Richard, Elodie
Format:	Artikel
Sprache:	eng
Schlagworte:	ABCD matrix Doherty Electronics Engineering Sciences image parameters image propagation function Impedance impedance matching Inspection Micro and nanotechnologies Microelectronics Microwave imaging offset-lines power amplifiers (PAs) Resistance Symmetric matrices Transmission line matrix methods Wireless communication
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Beschreibung
Zusammenfassung:	This letter shows how to find by inspection, the values of the characteristic impedances and the electrical lengths of the offset lines of the main and auxiliary amplifiers constituting a Doherty power amplifier. This letter focuses on the easiest determination of these offset lines using the ABCD matrix coupled with the formalism of image parameters to describe the output matching circuits of the main and auxiliary amplifiers.
ISSN:	1531-1309 1558-1764
DOI:	10.1109/LMWC.2018.2827960