EP 0459571 B1 19950920 - Microstrip slow wave transmission line and circuit including such a line.
Title (en)
Microstrip slow wave transmission line and circuit including such a line.
Title (de)
Langsam-Wellen-Mikrostreifenübertragungsleitung und Anordnung mit einer solchen Leitung.
Title (fr)
Ligne de transmission en mode à ondes lentes, du type microruban et circuit incluant une telle ligne.
Publication
Application
Priority
- FR 9006626 A 19900529
- FR 9008598 A 19900706
- FR 9102813 A 19910308
Abstract (en)
[origin: EP0459571A1] Wave transmission line, in slow wave mode, of the so-called microstrip type, including a first so-called lower conductive layer (11) acting as earth plane, a second so-called upper conductive layer (12) in the form of a strip with specific longitudinal and transverse dimensions, and a third non-conductive material (1, 2) arranged between these two conductive layers. This transmission lines has, longitudinally, a periodic structure, each period, of length l, being formed of a so-called bridge (4) followed by a so-called pillar (13). Each bridge consists of a segment of the upper conductive strip (12), of length l1 < l, arranged at the surface of a so-called first part (1) of the third material, which part is dielectric in nature. Moreover each pillar (13) is a capacitance which can be an active or passive element. Furthermore, the first conductive layer (11) can be provided with recesses (5) beneath each bridge. A directional coupler (50) can be produced by means of such slow wave lines, and used to produce an integrated transceiver device with single antenna. Application: monolithic microwave integrated circuits. <IMAGE>
IPC 1-7
IPC 8 full level
H01P 1/185 (2006.01); H01P 3/08 (2006.01); H01P 5/08 (2006.01); H01P 5/18 (2006.01); H01P 9/00 (2006.01)
CPC (source: EP US)
H01P 1/185 (2013.01 - EP US); H01P 3/081 (2013.01 - EP US); H01P 5/08 (2013.01 - EP US); H01P 9/00 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0459571 A1 19911204; EP 0459571 B1 19950920; DE 69113116 D1 19951026; DE 69113116 T2 19960418; JP H05500896 A 19930218; US 5369381 A 19941129; WO 9119329 A1 19911212
DOCDB simple family (application)
EP 91201234 A 19910524; DE 69113116 T 19910524; JP 51037791 A 19910527; NL 9100085 W 19910527; US 82090692 A 19920117