EP 1522118 A1 20050413 - PHASE SHIFTER FOR ANTENNA
Title (en)
PHASE SHIFTER FOR ANTENNA
Title (de)
PHASENSCHIEBER FÜR ANTENNE
Title (fr)
DEPHASEUR POUR ANTENNE
Publication
Application
Priority
- GB 0302920 W 20030708
- GB 0216048 A 20020711
Abstract (en)
[origin: WO2004008568A1] A phase shifter for a radio antenna has a feed terminal (10, 12) and a plurality of antenna terminals (28-37, 500), each of said antenna terminals being connected, in use, to a respective one or more antenna elements. The feed terminal and antenna terminals are connected together by means of a plurality of transmission line (14, 16) comprising a plurality of conductive tracks connecting the feed terminal (10) to the antenna terminals, grand conductor means and a solid dielectric substrate sandwiched between the tracks and the ground conductor means. The shifter includes a variable delay means movable relative to the tracks so as to vary the relative times taken for the signals to travel along the tracks between the feed and the antenna terminals.
IPC 1-7
IPC 8 full level
CPC (source: EP)
H01P 1/184 (2013.01); H01Q 3/32 (2013.01)
Citation (search report)
See references of WO 2004008568A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004008568 A1 20040122; AU 2003244844 A1 20040202; EP 1522118 A1 20050413; GB 0216048 D0 20020821
DOCDB simple family (application)
GB 0302920 W 20030708; AU 2003244844 A 20030708; EP 03738320 A 20030708; GB 0216048 A 20020711