Ch. Park, Y. Kim, H. Kim and S. Hong, “A 1.9-GHz CMOS Power Amplifier Using Three-Port Asymmetric Transmission Line Transformer for a Polar Transmitter,” IEEE Transactions on Microwave Theory and Techniques, Vol. 55, No. 2, 2007, pp. 230-238.
http://dx.doi.org/10.1109/TMTT.2006.889152

has been cited by the following article:

• TITLE: A 1.8 GHz Power Amplifier Class-E with Good Average Power Added Efficiency

  AUTHORS: Mousa Yousefi, Ziaadin Daie Koozehkanani, Jafar Sobhi, Hamid Jangi

  KEYWORDS: Power Added Efficiency; Power Amplifier; Class-E; Dynamic Range; Polar Modulation; Output Power

  JOURNAL NAME: Circuits and Systems, Vol.4 No.8, December 26, 2013

  ABSTRACT: This paper presents a 1.8 GHz class-E controlled power amplifier (PA). The proposed power amplifier is designed with two-stage architecture. The main advantage of the proposed technique for output control power is a high 37 dB output power dynamic range with good average power adding efficiency. The measurement results show that the PA achieves a high power gain of 23 dBm and power added efficiency (PAE) by 38%. The circuit was post layout simulated in a standard 0.18 μm CMOS technology.