Patent · US Active

Microwave-frequency filtering structures

US9941562B2 · kind B2 · utility

0Cited by

2References

7Claims

0Family size

Assignee

AIRBUS DS ELECTRONICS AND BORDER SECURITY GMBH · DE

Inventors

Michel Robin · Marly-le-Roi, FR
Guillaume Tolleron · Les Clayes-sous-Bois, FR

Key dates

Filing date	Nov 22, 2013
Grant date	Apr 10, 2018
Priority date	—
Expiry date	Jan 30, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH01P1/20363
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A microwave-frequency filtering structure includes two dielectric layers separated by a conducting layer that is etched in the pattern of a filter, the upper and lower exterior faces of the stack being covered over the larger part of their surface by a conducting plane constituting ground planes of the structure, which are interlinked by a metallization of the periphery of the structure; two identical devices, an input and an output transition device, each allowing the passage from a microstrip mode to a stripline mode and vice versa, configured so that the geometry of the transition device is optimized to minimize the standing wave ratios at the ports of the filter, and to minimize the excitation and the coupling of the TE10 mode, two conducting pillars perpendicular to the plane of the structure and situated close to its principal axis, without being coupled with the filter, and linking the upper and lower ground planes.

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