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EnglishWe present a wideband GaN MMIC power amplifier, designed to be the unit cell of a balanced module. A wideband output matching network, based on a two-section transformer, is adopted to compensate for reactive effects over the entire bandwidth. A reactive network is inserted at the input for gain equalization at compression; the resulting input reflectance will be controlled by the balanced configuration. According to simulations the MMIC shows, in the 7–14GHz band, power gain ranging from 6.8 to 8 dB, output power always > 5W, drain efficiency between 43% and 59% at power saturation. Preliminary measurements on the first run have comparable gain and slightly lower output power on a narrower bandwdith; the output efficiency goal is, however, achieved only on the lower part of the bandwidth. A second-run redesign is in progress.
X-band wideband 5W GaN MMIC power amplifier with large-signal gain equalization / Vittorio Camarchia;Jie Fang;Giovanni Ghione;Jorge Moreno Rubio;Marco Pirola;Roberto Quaglia. - STAMPA. - (2012), pp. 1-3. ((Intervento presentato al convegno 2012 Workshop on Integrated Nonlinear Microwave and Millimetre-wave Circuits tenutosi a Dublino [10.1109/INMMIC.2012.6331935].
| Titolo: | X-band wideband 5W GaN MMIC power amplifier with large-signal gain equalization | |
| Autori: | ||
| Data di pubblicazione: | 2012 | |
| Abstract: | We present a wideband GaN MMIC power amplifier, designed to be the unit cell of a balanced module.... A wideband output matching network, based on a two-section transformer, is adopted to compensate for reactive effects over the entire bandwidth. A reactive network is inserted at the input for gain equalization at compression; the resulting input reflectance will be controlled by the balanced configuration. According to simulations the MMIC shows, in the 7–14GHz band, power gain ranging from 6.8 to 8 dB, output power always > 5W, drain efficiency between 43% and 59% at power saturation. Preliminary measurements on the first run have comparable gain and slightly lower output power on a narrower bandwdith; the output efficiency goal is, however, achieved only on the lower part of the bandwidth. A second-run redesign is in progress. | |
| ISBN: | 9781467329484 9781467329491 9781467329507 | |
| Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |
File in questo prodotto:
| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| 06331935.pdf | 2. Post-print / Author's Accepted Manuscript | Non Pubblico - Accesso privato/ristretto | Administrator Richiedi una copia | |
| INMMiC2012_full_v2.pdf | 1. Preprint / submitted version [pre- review] | PUBBLICO - Tutti i diritti riservati | Visibile a tuttiVisualizza/Apri |
http://hdl.handle.net/11583/2503355
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