EP 2507865 B1 20180523 - COMPACT PLANAR VHF/UHF POWER IMPEDANCE
Title (en)
COMPACT PLANAR VHF/UHF POWER IMPEDANCE
Title (de)
KOMPAKTER PLANARER VHF/UHF-LEISTUNGSIMPEDANZTRANSFORMATOR
Title (fr)
TRANSFORMATEUR D'IMPEDANCE DE PUISSANCE VHF/UHF PLANAIRE COMPACT
Publication
Application
Priority
- FR 0905875 A 20091204
- EP 2010068808 W 20101203
Abstract (en)
[origin: WO2011067368A1] The invention relates to a RF impedance transformer (128) having a parallel low-impedance access Eb and serial high-impedance access Eh and intended for connection onto a printed circuit (130). The transformer comprises a multilayer circuit (60) that comprises a long side (64) and at least three layers. A first outer layer is separate from a second outer layer of the same thickness by at least one inner layer having a thickness at least four times greater than the thickness of the outer layers, each outer layer comprising an electrical conductor on each surface for forming a microstrip line (L1, L2), the serial high-impedance access Eh and the parallel low-impedance access Eb being on the long side (64) of the multilayer circuit (60) and near to each other so as to limit the surface for connection with the printed circuit (130). The invention is of use for impedance transformers for HF amplifiers and circuits.
IPC 8 full level
CPC (source: EP US)
H01F 19/04 (2013.01 - US); H01P 5/028 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2011067368 A1 20110609; EP 2507865 A1 20121010; EP 2507865 B1 20180523; FR 2953650 A1 20110610; FR 2953650 B1 20121214; MY 159930 A 20170215; SG 181171 A1 20120730; US 2013169402 A1 20130704; US 8610529 B2 20131217
DOCDB simple family (application)
EP 2010068808 W 20101203; EP 10787421 A 20101203; FR 0905875 A 20091204; MY PI2012002478 A 20101203; SG 2012041448 A 20101203; US 201013513801 A 20101203