Rumiko Yonezawa
Mitsubishi
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Publication
Featured researches published by Rumiko Yonezawa.
IEEE Transactions on Antennas and Propagation | 1999
Rumiko Yonezawa; Yoshihiko Konishi; Isamu Chiba; Takashi Katagi
Deployable phased-array antennas-antennas that are receiving great attention-have a major problem in that they possess the possibility of an incomplete deployment and antenna shape distortion. These effects cause a displacement of the element antenna positions that results in deviation of the phase distribution on the antenna aperture, eventually causing antenna beam deflection. We have investigated how to correct this beam deflection by observing the phased-array antenna from certain directions. There are cases when more than one observation point is necessary to carry out the proposed method depending on the extent of the antenna shape distortion and the number of the points is consulted. This correction method makes it possible to correct the deflection of the main beam and also to determine the displacement of relative element positions.
Archive | 1999
Isamu Chiba; Kazunari Kihira; Kuniyuki Suzuki; Rumiko Yonezawa; 勇 千葉; ルミ子 米澤; 一成 紀平; 邦之 鈴木
Archive | 1999
Isamu Chiba; Fumio Ishizu; Kenichiro Yamazaki; Rumiko Yonezawa; 勇 千葉; 健一郎 山崎; 文雄 石津; ルミ子 米澤
Archive | 1990
Isamu Chiba; Takashi Kataki; Yoshihiko Konishi; Rumiko Yonezawa; 勇 千葉; 善彦 小西; 孝至 片木; ルミ子 米澤
Archive | 1999
Isamu Chiba; Junya Koyama; Shigemitsu Mizukawa; Hideyo Ono; Rumiko Yonezawa; 淳弥 児山; 勇 千葉; 英世 小野; 繁光 水川; ルミ子 米澤
17th AIAA International Communications Satellite Systems Conference and Exhibit | 1998
Isamu Chiba; Shuji Urasaki; Yoshihiko Konishi; Rumiko Yonezawa; Akio Iso; Takashi Katagi
Archive | 2001
Akira Akaishi; Isamu Chiba; Rumiko Yonezawa; 勇 千葉; ルミ子 米澤; 明 赤石
IEICE Transactions on Communications | 2003
Kazunari Kihira; Rumiko Yonezawa; Isamu Chiba
Archive | 2001
Isamu Chiba; Kazunari Kihira; Rumiko Yonezawa; Shuji Urasaki
IEICE Transactions on Communications | 2001
Rumiko Yonezawa; Isamu Chiba
