Journal
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS
Volume 28, Issue 5, Pages 434-436Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LMWC.2018.2811338
Keywords
80211ax; Class-J; GaN power amplifier (PA); monolithic microwave circuit (MMIC)
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Funding
- National Research Foundation, Prime Minister's Office, Singapore
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This letter presents a fully integrated Class-J GaN monolithic microwave circuit power amplifier (PA), which is fabricated in Woolfspeed 0.25-mu m GaN-on-SiC technology. This PA is the first published design for the emerging IEEE 802.11ax application in the literature. When tested with 80-MHz 256-quadratic-amplitude modulation 802.11ax signal with 11.25-dB peak-to-average power ratio, the PA delivers average output power of 27.3-30.3 dBm from 4.9 to 5.9 GHz, with power-added efficiency of 16.7% to 27.3%, while meeting the standard specification of error vector magnitude below -32 dB.
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