Details
| Original language | English |
|---|---|
| Title of host publication | IEEE MTT-S International Microwave Workshop Series on Wireless Sensing, Local Positioning and RFID - Proceedings, IMWS 2009 - Croatia |
| Publication status | Published - 2009 |
| Event | IEEE MTT-S International Microwave Workshop Series on Wireless Sensing, Local Positioning and RFID, IMWS 2009 - Croatia - Cavtat, Croatia Duration: 24 Sept 2009 → 25 Sept 2009 |
Publication series
| Name | IEEE MTT-S International Microwave Workshop Series on Wireless Sensing, Local Positioning and RFID, Proceedings, IMWS 2009 - Croatia |
|---|
Abstract
In this work a 6 W GaN based class-F amplifier is presented. The presented amplifier uses an adaptive matching output network to achieve high efficiency over 8.5 dB output dynamic range. The output matching network is an L matching network with a tunable inductor and a tunable capacitor. The tunable inductor is based on a λ/4 impedance inverter and a switchable capacitor bank. The tunable inductor presents a short circuit for the second harmonic and an open circuit to the third harmonic; additionally together with the tunable capacitor they present the optimum working impedance for the transistor. The designed amplifier has a power added efficiency of 72.0 % at an output power of 38 dBm and through using adaptive matching it can achieve a PAE of 58% at an output power of 29.5 dBm, in contrast to a PAE of only 26% in the case of using a fixed matching network.
Keywords
- Adaptive matching, Class-F, Impedance inverter, Power amplifiers
ASJC Scopus subject areas
- Computer Science(all)
- Computer Networks and Communications
- Computer Science(all)
- Hardware and Architecture
- Engineering(all)
- Electrical and Electronic Engineering
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IEEE MTT-S International Microwave Workshop Series on Wireless Sensing, Local Positioning and RFID - Proceedings, IMWS 2009 - Croatia. 2009. 5307863 (IEEE MTT-S International Microwave Workshop Series on Wireless Sensing, Local Positioning and RFID, Proceedings, IMWS 2009 - Croatia).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Adaptive matching for efficiency enhancement ofGaN class-F power amplifiers
AU - El Din, Mohamed Gamai
AU - Geck, Bernd
AU - Eul, H.
PY - 2009
Y1 - 2009
N2 - In this work a 6 W GaN based class-F amplifier is presented. The presented amplifier uses an adaptive matching output network to achieve high efficiency over 8.5 dB output dynamic range. The output matching network is an L matching network with a tunable inductor and a tunable capacitor. The tunable inductor is based on a λ/4 impedance inverter and a switchable capacitor bank. The tunable inductor presents a short circuit for the second harmonic and an open circuit to the third harmonic; additionally together with the tunable capacitor they present the optimum working impedance for the transistor. The designed amplifier has a power added efficiency of 72.0 % at an output power of 38 dBm and through using adaptive matching it can achieve a PAE of 58% at an output power of 29.5 dBm, in contrast to a PAE of only 26% in the case of using a fixed matching network.
AB - In this work a 6 W GaN based class-F amplifier is presented. The presented amplifier uses an adaptive matching output network to achieve high efficiency over 8.5 dB output dynamic range. The output matching network is an L matching network with a tunable inductor and a tunable capacitor. The tunable inductor is based on a λ/4 impedance inverter and a switchable capacitor bank. The tunable inductor presents a short circuit for the second harmonic and an open circuit to the third harmonic; additionally together with the tunable capacitor they present the optimum working impedance for the transistor. The designed amplifier has a power added efficiency of 72.0 % at an output power of 38 dBm and through using adaptive matching it can achieve a PAE of 58% at an output power of 29.5 dBm, in contrast to a PAE of only 26% in the case of using a fixed matching network.
KW - Adaptive matching
KW - Class-F
KW - Impedance inverter
KW - Power amplifiers
UR - http://www.scopus.com/inward/record.url?scp=73649090785&partnerID=8YFLogxK
U2 - 10.1109/IMWS2.2009.5307863
DO - 10.1109/IMWS2.2009.5307863
M3 - Conference contribution
AN - SCOPUS:73649090785
SN - 9781424450626
T3 - IEEE MTT-S International Microwave Workshop Series on Wireless Sensing, Local Positioning and RFID, Proceedings, IMWS 2009 - Croatia
BT - IEEE MTT-S International Microwave Workshop Series on Wireless Sensing, Local Positioning and RFID - Proceedings, IMWS 2009 - Croatia
T2 - IEEE MTT-S International Microwave Workshop Series on Wireless Sensing, Local Positioning and RFID, IMWS 2009 - Croatia
Y2 - 24 September 2009 through 25 September 2009
ER -