EP 0335788 B1 19940720 - Microwave phase shifter.
Title (en)
Microwave phase shifter.
Title (de)
Mikrowellenphasenschieber.
Title (fr)
Circuit déphaseur hyperfréquence.
Publication
Application
Priority
FR 8804388 A 19880401
Abstract (en)
[origin: EP0335788A1] The phase-shifter circuit is constructed with the aid of strip lines (16, 17 and 18) arranged in candlestick form on one face (14) of a substrate (10) and of a slotted line (12) which is disposed on the other face (13). The lengths of the branches (17 and 18) of the candlestick differ by b/4, b being the wavelength, and the ends (19, 20) of the said branches are short-circuited, or not, by PIN diodes (21, 22) which may be forward or reverse biased. The invention is applicable to radars. <IMAGE>
IPC 1-7
IPC 8 full level
H01P 1/185 (2006.01); H01P 5/10 (2006.01); H01P 5/20 (2006.01)
CPC (source: EP US)
H01P 1/185 (2013.01 - EP US); H01P 5/1007 (2013.01 - EP US); H01P 5/20 (2013.01 - EP US)
Designated contracting state (EPC)
DE GB IT NL
DOCDB simple family (publication)
EP 0335788 A1 19891004; EP 0335788 B1 19940720; DE 68916829 D1 19940825; DE 68916829 T2 19950112; FR 2629641 A1 19891006; FR 2629641 B1 19900323; US 4967172 A 19901030
DOCDB simple family (application)
EP 89400847 A 19890324; DE 68916829 T 19890324; FR 8804388 A 19880401; US 32980689 A 19890328