Masafumi NAGASAKA

120-W Ku-Band GaN SSPA with Diode Linearizer for Future Broadcasting Satellites
Masafumi NAGASAKA Masaaki KOJIMA Takuma TORII Hiromitsu UTSUMI Koji YAMANAKA Shintaro SHINJO Mitsuhiro SHIMOZAWA Hisashi SUJIKAI 
Publication:   
Publication Date: 2019/10/01
Vol. E102-C  No. 10  pp. 717-724
Type of Manuscript:  Special Section PAPER (Special Section on Microwave and Millimeter-Wave Technologies)
Category: 
Keyword: 
broadcasting satellite, SSPA, Ku-band, GaN, 
 Summary | Full Text:PDF
12- and 21-GHz Dual-Band Dual-Circularly Polarized Offset Parabolic Reflector Antenna Fed by Microstrip Antenna Arrays for Satellite Broadcasting Reception
Masafumi NAGASAKA Masaaki KOJIMA Hisashi SUJIKAI Jiro HIROKAWA 
Publication:   
Publication Date: 2019/07/01
Vol. E102-B  No. 7  pp. 1323-1333
Type of Manuscript:  PAPER
Category: Antennas and Propagation
Keyword: 
reflector antenna, microstrip antenna, circular polarization, dual band antenna, dual polarized antenna, 
 Summary | Full Text:PDF
Dual-Circularly Polarized Offset Parabolic Reflector Antenna with Microstrip Antenna Array for 12-GHz Band Satellite Broadcasting Reception
Masafumi NAGASAKA Susumu NAKAZAWA Shoji TANAKA 
Publication:   
Publication Date: 2018/02/01
Vol. E101-B  No. 2  pp. 340-348
Type of Manuscript:  Special Section PAPER (Special Section on Recent Progress in Antennas and Propagation in Conjunction with Main Topics of ISAP2016)
Category: Antennas
Keyword: 
reflector antenna, microstrip antenna, circular polarization, dual polarized antenna, 
 Summary | Full Text:PDF