Radar sensor antenna with anti-reflection element

Radar sensor antenna with anti-reflection element

  • CN 104,466,425 B
  • Filed: 08/29/2014
  • Issued: 10/30/2020
  • Est. Priority Date: 09/24/2013
  • Status: Active Grant
First Claim
Patent Images

1. An antenna (10) of a radar reflector configured to emit a transmitted signal (20), wherein a panel (12) reflects an early reflected portion (30) of the transmitted signal (20) towards the antenna (10), the antenna (10) comprising:

  • a transmitter element (18) configured to direct the transmit signal (20) along a line of sight (22) intersecting the panel (12);

    a receiver element (32) configured to detect a reflected signal (26) reflected by an object located beyond the panel (12); and

    an anti-reflection element (34) configured to reduce reflection of early reflected portions (30) by the antenna (10), andthe anti-reflection element (34) comprises at least one of;

    a redirection array (38) configured to reflectively redirect the early reflection portion (30) away from a line of sight (22);

    a null array (46) configured to reflect a first portion of the early reflected portion (30) with a first phase and to reflect a second portion of the early reflected portion (30) with a second phase different from the first phase.

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