发明授权
- 专利标题： Multiple-beam antenna system
- 专利标题（中）： 多波束天线系统
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申请号： US363490申请日： 1989-06-08
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公开(公告)号： US4947176A公开(公告)日： 1990-08-07
- 发明人: Shigeho Inatsune , Yoshimasa Ohashi , Takahiko Fujisaka , Michimasa Kondo
- 申请人： Shigeho Inatsune , Yoshimasa Ohashi , Takahiko Fujisaka , Michimasa Kondo
- 申请人地址： JPX Tokyo
- 专利权人： Mitsubishi Denki Kabushiki Kaisha
- 当前专利权人： Mitsubishi Denki Kabushiki Kaisha
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX1-144301 19880610; JPX63-25101 19890203
- 主分类号： G01S3/74
- IPC分类号： G01S3/74 ; G01S13/48 ; H01Q21/00 ; H01Q25/00
摘要：
A multiple-beam antenna system capable of forming a plurality of beams at one time in different directions. The antenna system has a plurality of element antennas arranged in a predetermined configuration. A signal received by each element antenna is converted to a digital signal which in turn is subjected to a Fourier transform. The Fourier-transformed receiving signal is multiplied with a Fourier-transformed weighting function. The resultant product is subjected to an inverse Fourier transform to be used for calculating an antenna radiation pattern. A holographic multiple-beam antenna is also disclosed.
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