High Efficiency RF Power Amplifier Designed With Harmonic Real-Time Active Load-Pull

Autor:	J. Strahler, Seok Joo Doo, Patrick Roblin, R.G. Rojas-Teran, Xian Cui
Rok vydání:	2008
Předmět:	Power-added efficiency Engineering business.industry Amplifier RF power amplifier Electrical engineering Power bandwidth Condensed Matter Physics Active load Power electronics Electronic engineering Harmonic Linear amplifier Electrical and Electronic Engineering business
Zdroj:	IEEE Microwave and Wireless Components Letters. 18:266-268
ISSN:	1558-1764 1531-1309
DOI:	10.1109/lmwc.2008.918913
Popis:	In this work, a high efficiency p-HEMT radio frequency power amplifier (PA) is designed using a new multiharmonic real-time active load-pull using the large signal network analyzer. This technique synthesizes a large set of instantaneous load mismatches to quickly find the optimal harmonic impedances, so as to achieve high PA efficiency in a shortened design cycle. At 2 GHz a demo power amplifier implemented with a p-HEMT demonstrated a power added efficiency (PAE) of 68.5% for 18.0 dBm output power, while achieving a maximum PAE of 75% below the 1 dB compression point for 18.6 dBm output power.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::496ad44c93ee6cc1277474ce83558f97 https://doi.org/10.1109/lmwc.2008.918913 Zobrazit plný text záznamu