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Slot antenna array using ltcc technology

  • US 20050073460A1
  • Filed: 11/18/2003
  • Published: 04/07/2005
  • Est. Priority Date: 03/03/2003
  • Status: Active Grant
First Claim
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1. A planar antenna array in a radar sensor for detecting objects in the vicinity of a motor vehicle, with a multitude of microstrip feeder lines (18) and a multitude of coupling slots (20) for emitting microwave energy into open space, characterized in that the feeder lines (18) and the coupling slots (20) are embodied in a multilayer ceramic substrate (10) produced by means of the LTCC thick layer technique with an upper (12) and a lower grounded layer, and the feeder lines (18) and coupling slots (20) are enclosed by plated-through contacts (14) from the upper grounded layer to the lower one.

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