Daisuke Koizumi

Broadside Coupling High-Temperature Superconducting Dual-Band Bandpass Filter

Shoichi Narahashi, Yuta Takagi, Kei Satoh, 2013, IEICE Trans. Electron..

A Novel Compact HTS Interdigital Bandpass Filter Using CPW Quarter-Wavelength Resonators

Zhewang Ma, Shoichi Narahashi, Yoshio Kobayashi, 2006, IEICE Trans. Electron..

Tunable Resonator Employing Comb-shaped Transmission Line and Semiconductor Switches

Hiroshi Okazaki, Shoichi Narahashi, Daisuke Koizumi, 2014, IEICE Trans. Electron..

Novel method to improve power handling capability for coplanar waveguide high-temperature superconducting filter

Shoichi Narahashi, Kei Satoh, Daisuke Koizumi, 2006 .

Cryogenic receiver front-end with sharp skirt characteristics

Shoichi Narahashi, Toshio Nojima, Kei Satoh, 2006 .

Compact 2.4-/2.9-GHz band parallel-planar bandpass filter

Shoichi Narahashi, Yuta Takagi, Kei Satoh, 2009, 2009 IEEE Radio and Wireless Symposium.