NDLI: Fully-integrated WLAN CMOS PA with reconfigurable transformer

Content Provider	IET Digital Library
Author	Ahn, H. Baek, S. Nam, I. Lee, O.
Abstract	A modified series combining transformer incorporating an autotransformer for the dual-mode operation to improve efficiency performance in the low-output power region is presented. The dual-mode CMOS power amplifier (PA) with the proposed reconfigurable transformer is fabricated using 40-nm CMOS technology. Compared with other dual-mode WLAN CMOS PAs, the proposed PA achieves high-efficiency performance in both high-power and low-power modes; in dual-mode operation, the PA has average output power levels of 19.2 and 15.2 dBm with power added efficiencies of 17.3 and 14.4%, respectively, while satisfying the error vector magnitude requirements of WLAN 802.11g signals.
Starting Page	574
Ending Page	576
Page Count	3
ISSN	00135194
Volume Number	54
e-ISSN	1350911X
Issue Number	Issue 9, May (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/el/54/9
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/el.2018.0652
Journal	Electronics Letters
Publisher Date	2018-03-28
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Amplifiers Autotransformer Autotransformers CMOS Analogue Integrated Circuit CMOS Integrated Circuit Dual-mode CMOS Power Amplifier Efficiency 14.4 Percent Efficiency 17.3 Percent Error Vector Magnitude Fully-integrated WLAN CMOS PA High-efficiency Performance Low Power Electronics Low-output Power Region Low-power Mode Modified Series Combining Transformer Power Amplifier Reconfigurable Transformer Size 40 Nm Wireless LAN WLAN 802.11g Signal
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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