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A GaN HEMT power am...
A GaN HEMT power amplifier with variable gate bias for envelope and phase signals
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- Cijvat, Pieternella (author)
- Lund University,Lunds universitet,Institutionen för elektro- och informationsteknik,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Electrical and Information Technology,Departments at LTH,Faculty of Engineering, LTH
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- Tom, Kevin (author)
- Victoria University, Australia
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Faulkner, Michael (author)
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- Sjöland, Henrik (author)
- Lund University,Lunds universitet,Institutionen för elektro- och informationsteknik,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Electrical and Information Technology,Departments at LTH,Faculty of Engineering, LTH
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- Cijvat, Ellie (author)
- Lund University
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- Faulkner, Mike (author)
- Victoria University, Australia
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(creator_code:org_t)
- Aalborg, Denmark : Institute of Electrical and Electronics Engineers (IEEE), 2007
- 2007
- English.
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In: [Host publication title missing]. - Aalborg, Denmark : Institute of Electrical and Electronics Engineers (IEEE). - 9781424415168 ; , s. 108-111
- Related links:
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http://dx.doi.org/10...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Subject headings
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- This paper describes the design, simulation and measurement of a GaN power amplifier suitable for envelope and phase signal combination. The low-frequency envelope signal is used to vary the gate (bias) voltage of the device, resulting in a pulse width modulated drain voltage, while modulation of supply voltage or current is avoided. The test circuit is implemented using a discrete GaN HEMT power amplifier and discrete surface-mount passive components assembled on a PCB. Measurements showed a maximum drain efficiency of 59% at 360 MHz, at an output power of 29 dBm. The output power as a function of the gate bias voltage varied between 3 and 29 dBm, with the drain efficiency varying between 6 and 59%.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
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