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Radar device

  • US 5,959,571 A
  • Filed: 12/11/1997
  • Issued: 09/28/1999
  • Est. Priority Date: 04/22/1996
  • Status: Expired due to Fees
First Claim
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1. A radar device which transmits an electric wave, receives a reflected wave of said electric wave from an object, and thereby detects said object, said radar device comprising:

  • a plurality of antennas each having an antenna beam pattern having a predetermined directivity, said antennas being arranged such that the antenna beam patterns of said antennas are adjacent to each other, and the antenna beam patterns are partly overlapping with each other,frequency measurement means for measuring a frequency of how often said object is detected by each of said antennas, andazimuth measurement means for obtaining an azimuth of said detected object, based on (i) said measured frequency for each of said antennas and (ii) beam pattern characteristics of each of said antennas.

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