Yoichi KAWAKAMI


Growth Mechanism of Polar-Plane-Free Faceted InGaN Quantum Wells
Yoshinobu MATSUDA Mitsuru FUNATO Yoichi KAWAKAMI 
Publication:   
Publication Date: 2018/07/01
Vol. E101-C  No. 7  pp. 532-536
Type of Manuscript:  INVITED PAPER (Special Section on Distinguished Papers in Photonics)
Category: 
Keyword: 
III-nitride semiconductorthree-dimensional structurepolychromatic emission
 Summary | Full Text:PDF(1.7MB)

Four-Reflector Offset Antennas for Space Communications
Takayoshi FURUNO Mikio TAKABAYASHI Yoichi KAWAKAMI Takashi KATAGI Hiroyoshi IKUNO 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 2002/07/01
Vol. E85-B  No. 7  pp. 1342-1351
Type of Manuscript:  PAPER
Category: Antenna and Propagation
Keyword: 
four-reflector offset antennascross-polarization elimination conditionbeam mode expansion methodbroadband characteristics condition
 Summary | Full Text:PDF(913.2KB)

S-Band Mobile Satellite Communications and Multimedia Broadcasting Onboard Equipment for ETS-VIII
Yoichi KAWAKAMI Shigetoshi YOSHIMOTO Yasushi MATSUMOTO Takashi OHIRA Toshiyuki IDE 
Publication:   IEICE TRANSACTIONS on Communications
Publication Date: 1999/10/25
Vol. E82-B  No. 10  pp. 1659-1666
Type of Manuscript:  PAPER
Category: Satellite Communication
Keyword: 
S-bandmobile satellite communicationsatellite broadcastinghandheld terminalsgeostationary satellite
 Summary | Full Text:PDF(678.2KB)