Ryoji Yamauchi

  • Citations Per Year
Learn More
An L-shaped probe can generate circular polarization, combining with surrounding aperture, such as waveguides. And such structure has broadband characteristics in both axial ratio (AR) and input impedance, however cross-polarization (XPOL) is easily generated due to its asymmetrical structure resulting in a narrow azimuth range for circular polarization. In(More)
Many nanoporous metals have been applied for catalysis and show active properties. In this study, nanoporous platinum was successfully prepared from a Cu-Pt (50/50 w/w) alloy plate by electrochemical dealloying. In order to reveal their detailed structures in nanometer order, TEM observation of the surface area of the alloy plate was performed by using(More)
  • 1