Title :
High efficiency class-E power amplifier with a new output network
Author :
Yavari, Masoud ; Naseh, Sasan
Author_Institution :
Ferdowsi Univ. of Mashhad, Mashhad, Iran
Abstract :
A new output network is introduced for class-E power amplifiers. In the proposed output network two new elements, a capacitor and an inductor, are added which provide a high degree of flexibility in the design process. Simulations using a commercial 0.18 μm CMOS technology show that higher parallel capacitance and higher efficiency in comparison to the conventional class-E power amplifiers can be achieved. A sample design of the proposed power amplifier delivers 19.8 dBm power from a 1V supply voltage to a 50Ω load with 68.4% drain efficiency and 64.8% power added efficiency in 1GHz operating frequency.
Keywords :
CMOS integrated circuits; capacitors; inductors; power amplifiers; CMOS technology; capacitor; class-E power amplifier; drain efficiency; frequency 1 GHz; inductor; output network; parallel capacitance; power added efficiency; resistance 50 ohm; size 0.18 mum; voltage 1 V; Capacitance; Inductors; Power amplifiers; Power generation; RLC circuits; Resistance; Switches;
Conference_Titel :
Electronics, Circuits and Systems (ICECS), 2011 18th IEEE International Conference on
Conference_Location :
Beirut
Print_ISBN :
978-1-4577-1845-8
Electronic_ISBN :
978-1-4577-1844-1
DOI :
10.1109/ICECS.2011.6122281
