Search: WFRF:(Van Der Heijden M.P.) >
High efficiency RF ...
High efficiency RF pulse width modulation with tunable load network class-E PA
-
- ÖZEN, MUSTAFA, 1984 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Andersson, Christer, 1982 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Thorsell, Mattias, 1982 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
show more...
-
- Andersson, Kristoffer, 1976 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Rorsman, Niklas, 1964 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Fager, Christian, 1974 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
-
- Acar, M. (author)
- Nxp Semiconductors Netherlands Bv
-
- Van Der Heijden, M. P. (author)
- Nxp Semiconductors Netherlands Bv
-
- Jos, R. (author)
- Nxp Semiconductors Netherlands Bv
-
show less...
-
(creator_code:org_t)
- ISBN 9781612840819
- 2011
- 2011
- English.
-
In: 2011 IEEE 12th Annual Wireless and Microwave Technology Conference, WAMICON 2011. - 9781612840819
- Related links:
-
https://research.cha...
-
show more...
-
https://doi.org/10.1...
-
show less...
Abstract
Subject headings
Close
- In this paper, a 10 W peak power 2 GHz highly efficient RF pulse width modulation (RF-PWM) based transmitter is presented. RF-PWM signals are generated with a dedicated 65 nm CMOS modulator and subsequently amplified with a GaN Class-E power amplifier (PA). The modulator use extended drain MOS (EDMOS) high voltage transistors to provide the required voltage swing to drive the GaN used as a switch. The imaginary load impedance of the Class-E is electronically tunable and is implemented with in-house high breakdown voltage SiC varactors. The tunable imaginary load impedance enables optimization of the Class-E versus the duty cycle (pulse width). The peak efficiency is therefore preserved over a wide range of output power levels. The measured drain efficiency of the Class-E output stage is above 70% over a 6.5 dB output power dynamic range. The overall transmitter efficiency is above 60% for the same dynamic range.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Keyword
- RF-PWM
- SiC varactors
- power amplifiers
- high efficiency
- EDMOS
- pulse width modulation
- Class-E
Publication and Content Type
- kon (subject category)
- ref (subject category)
Find in a library
To the university's database
- By the author/editor
-
ÖZEN, MUSTAFA, 1 ...
-
Andersson, Chris ...
-
Thorsell, Mattia ...
-
Andersson, Krist ...
-
Rorsman, Niklas, ...
-
Fager, Christian ...
-
show more...
-
Acar, M.
-
Van Der Heijden, ...
-
Jos, R.
-
show less...
- About the subject
-
- ENGINEERING AND TECHNOLOGY
-
ENGINEERING AND ...
-
and Electrical Engin ...
- Articles in the publication
-
2011 IEEE 12th A ...
- By the university
-
Chalmers University of Technology