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Radar for vehicle and method of operating the same

  • US 9,880,275 B2
  • Filed: 08/08/2014
  • Issued: 01/30/2018
  • Est. Priority Date: 08/08/2013
  • Status: Active Grant
First Claim
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1. A radar for a vehicle, comprising:

  • Tx antennas for a middle range;

    Tx antennas for a short range;

    Rx antenna columns for a middle range each configured to have a long shape vertically and be horizontally disposed;

    Rx antenna columns for a short range each configured to have a long shape vertically and be disposed between some of the Rx antenna columns for the middle range; and

    a control unit configured to process signals of radio waves that are reflected from a specific object after the radio waves are radiated by the Tx antennas for the middle range and that are received by the Rx antenna columns for the middle range or signals of radio waves that are reflected from a specific object after the radio waves are radiated by the Tx antennas for the short range and that are received by the Rx antenna columns for the short range,wherein the Rx antenna columns for the middle range that overlap with the Rx antenna columns for the short range are configured to selectively connect to a middle range reception circuit or a short range reception circuit by switches, andwherein Rx antenna columns for the long range that do not overlap with the Rx antenna columns for the short range are grouped every two or more, and the grouped Rx antenna columns are connected to a single reception line, and Rx antenna columns for the long range that overlap with the Rx antenna columns for the short range are connected to respective reception lines.

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