发明授权
US08730112B2 Antenna evaluation apparatus and antenna evaluation method for creating multipath waves around receiving antenna
有权
用于在接收天线周围产生多径波的天线评估装置和天线评估方法
- 专利标题: Antenna evaluation apparatus and antenna evaluation method for creating multipath waves around receiving antenna
- 专利标题(中): 用于在接收天线周围产生多径波的天线评估装置和天线评估方法
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申请号: US13056490申请日: 2010-04-21
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公开(公告)号: US08730112B2公开(公告)日: 2014-05-20
- 发明人: Tsutomu Sakata , Atsushi Yamamoto , Satoru Amari
- 申请人: Tsutomu Sakata , Atsushi Yamamoto , Satoru Amari
- 申请人地址: JP Osaka
- 专利权人: Panasonic Corporation
- 当前专利权人: Panasonic Corporation
- 当前专利权人地址: JP Osaka
- 代理机构: Wenderoth, Lind & Ponack, L.L.P.
- 优先权: JP2009-115486 20090512; JP2009-240556 20091019
- 国际申请: PCT/JP2010/002882 WO 20100421
- 国际公布: WO2010/131423 WO 20101118
- 主分类号: G01R29/10
- IPC分类号: G01R29/10
摘要:
An antenna evaluation apparatus includes receiving antennas to be evaluated, scatterer antennas provided around them, signal generators, delay circuits, dividers, phase-shift circuits, and attenuation circuits. A computer controls the delay circuits to add delay times to radio frequency signals, and controls the phase-shift circuits and attenuation circuits to change phases and amplitudes of the radio frequency signals to produce a first fading. The antenna evaluation apparatus radiates the radio frequency signals from the scatterer antennas, thus creating multipath waves including delay and fading around the receiving antenna.
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