High power DPDT antenna switch MMIC for digital cellular systems. - Kazumasa Kohama; Takahiro Ohgihara; Yoshikazu Murakami (IEEE J. Solid State Circuits, 1996)

An Ultra-Wideband Digitally Programmable Power Amplifier With Efficiency Enhancement for Cellular and Emerging Wireless Communication Standards. - Lutfi Albasha; Chris Clifton; Yoshikatsu Jingu; Alan Lawrenson; Hideshi Motoyama; Souheil Bensmida; Kevin A. Morris; Kazumasa Kohama (IEEE Trans. Circuits Syst. I Regul. Pap., 2016)