Slot antenna array using ltcc technology
First Claim
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.
1 Assignment
0 Petitions
Accused Products
Abstract
In order to produce a planar antenna array in a radar sensor with a multitude of microstrip feeder lines (18) and a multitude of coupling slots (20) for emitting microwave energy into open space, which achieves a favorable antenna efficiency when embodied in a planar design using LTCC technology, the invention proposes embodying the feeder lines (18) and the coupling slots (20) in a multilayer ceramic substrate (10) produced by means of the LTCC thick layer technique with an upper and a lower grounded layer (12), as well as enclosing the feeder lines (18) and the coupling slots (20) with plated-through contacts (14) from the upper grounded layer to the lower one.
16 Citations
11 Claims
-
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.
Specification