Ka-band multibeam active phased array antenna. - Sumire Takatsu; Kazuhisa Yamauchi; Hiromasa Nakaguro; Akira Akaishi; Naoto Kadowaki (Space Commun., 2002)

A Wideband Digital Predistorter for a Doherty Power Amplifier Using a Direct Learning Memory Effect Filter. - Kenichi Horiguchi; Naoko Matsunaga; Kazuhisa Yamauchi; Ryoji Hayashi; Moriyasu Miyazaki; Toshio Nojima (IEICE Trans. Electron., 2010)

High Directivity Coupler Suppressing Leak Coupling with Cancellation Circuit of Wilkinson Divider. - Kazuhisa Yamauchi; Akira Inoue; Moriyasu Miyazaki (IEICE Trans. Electron., 2010)