- 专利标题: ELECTROMAGNETIC IMAGING DEVICE FOR ACTIVE MICROWAVE AND MILLIMETER WAVE SECURITY INSPECTION APPARATUS
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申请号: US17309915申请日: 2019-10-10
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公开(公告)号: US20220221576A1公开(公告)日: 2022-07-14
- 发明人: Ziran Zhao , Yan You , Yuanjing Li , Xuming Ma , Jian Wu
- 申请人: Tsinghua Park , Nuctech Company Limited
- 申请人地址: CN Beijing; CN Beijing
- 专利权人: Tsinghua Park,Nuctech Company Limited
- 当前专利权人: Tsinghua Park,Nuctech Company Limited
- 当前专利权人地址: CN Beijing; CN Beijing
- 优先权: CN201811654199.4 20181229
- 国际申请: PCT/CN2019/110381 WO 20191010
- 主分类号: G01S13/90
- IPC分类号: G01S13/90 ; G01S7/282 ; G01V3/12 ; G01S7/20
摘要:
The present disclosure provides an electromagnetic imaging device for an active microwave and millimeter wave security inspection apparatus, including: a two-dimensional multiple-input multiple-output array panel including at least one sub-array, wherein each sub-array includes a plurality of transmitting antennas arranged linearly and a plurality of receiving antennas arranged linearly, the plurality of transmitting antennas arranged linearly being intersected with the plurality of receiving antennas arranged linearly; a signal processing device; a display device; and a ranging radar. In each sub-array, a midpoint of a connection line between each transmitting antenna and a corresponding receiving antenna serves as a virtual equivalent phase center of a pair of the each transmitting antenna and the corresponding receiving antenna, and the plurality of transmitting antennas and the plurality of receiving antennas are arranged to generate an equivalent phase center web. A distance between adjacent transmitting antennas or a distance between adjacent receiving antennas is equal to a wavelength of the electromagnetic wave with the specific frequency, and a distance between adjacent equivalent phase centers in the equivalent phase center web generated ranges from 30% to 70% of the wavelength of the electromagnetic wave with the specific frequency.