Pulsed techniques for the characterization of low-frequency dispersive effects in RF power FETs using a flexible measurement set-up
| Autor: | Pier Andrea Traverso, Gian Piero Gibiino, Alberto Santarelli |
|---|---|
| Přispěvatelé: | Gibiino G.P., Santarelli A., Traverso P.A. |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Impedance matching Gallium nitride 02 engineering and technology Low frequency 01 natural sciences law.invention chemistry.chemical_compound law Pulsed measurement 0202 electrical engineering electronic engineering information engineering Calibration Waveform Electrical and Electronic Engineering Instrumentation business.industry Applied Mathematics 020208 electrical & electronic engineering 010401 analytical chemistry Transistor RF power amplifier Network analysi Condensed Matter Physics Transistor characterization 0104 chemical sciences chemistry Optoelectronics business Microwave |
| Popis: | This work describes an on-wafer measurement architecture tailored to the broadband pulsed characterization of radio-frequency (RF) power field-effect transistors (FETs). Based on a 50- Ω environment and corresponding wave-variable domain representation, the set-up exploits the impedance matching and the broadband feature of its components, together with a full-bandwidth calibration, for the synthesis and measurement of pulsed waveforms with short pulse rise/fall times in the order of a few ns, while guaranteeing a reduced risk of oscillations. These measurement capabilities are particularly suited for experimentally assessing the FET performance reduction due to low-frequency dispersive effects caused by thermal and charge trapping phenomena. The flexibility of the set-up is showcased by discussing experimental examples of different measurement techniques in the kHz-to-GHz range, including single- and double-pulsed I–V characteristics and S -parameters, as well as pulsed continuous-wave (CW) measurements, performed on state-of-the-art gallium nitride (GaN) RF FETs for microwave and millimeter-wave applications. |
| Databáze: | OpenAIRE |
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