Patent · US Expired

Slot antenna array using LTCC technology

US7038622B2 · kind B2 · utility

11Cited by

6References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Ewald Schmidt · Ludwigsburg, DE
Klaus Voitlaender · Schallstadt, DE
Stefan Gaier · Stuttgart, DE
Juergen Seidel · Schorndorf, DE

Key dates

Filing date	Nov 18, 2003
Grant date	May 2, 2006
Priority date	—
Expiry date	Nov 18, 2023

Classification

Technology area (CPC G)Physics
CPC primaryG01S7/032
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

In order to produce a planar antenna array in a radar sensor with a multitude of microstrip feeder lines and a multitude of coupling slots 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 and the coupling slots in a multilayer ceramic substrate produced by means of the LTCC thick layer technique with an upper and a lower grounded layer, as well as enclosing the feeder lines and the coupling slots with plated-through contacts from the upper grounded layer to the lower one.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.