EP 0783190 B1 20011004 - Passive entry x-y-z transponder antenna
Title (en)
Passive entry x-y-z transponder antenna
Title (de)
Passive x-y-z Antenne für ein Antwortsendegerät
Title (fr)
Antenne passive x-y-z pour transpondeur
Publication
Application
Priority
US 947896 P 19960102
Abstract (en)
[origin: EP0783190A1] In a transponder unit adapted to communicate with an interrogation unit by transmitting RF signals to and receiving RF signals from the interrogation unit, a transponder antenna comprising an elongated tubular first ferrite antenna coil (12), oriented to transmit and receive RF signals a first direction parallel to the barrel of said coil; an elongated tubular second ferrite antenna coil (14), oriented at a different angle from said first coil and adapted to transmit and receive RF signals in a second direction parallel to the barrel of said coil; and a substantially flat, planar air coil (10) adapted to transmit and receive RF signals in a direction perpendicular to the plane of said coil, and oriented at a different angle from said first and said second coils. <IMAGE>
IPC 1-7
IPC 8 full level
H01Q 7/00 (2006.01); H01Q 7/08 (2006.01); H01Q 21/28 (2006.01); G07C 9/00 (2006.01)
CPC (source: EP)
H01Q 7/00 (2013.01); H01Q 7/08 (2013.01); H01Q 21/28 (2013.01); G07C 9/00309 (2013.01)
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 0783190 A1 19970709; EP 0783190 B1 20011004; DE 69707024 D1 20011108; DE 69707024 T2 20020620
DOCDB simple family (application)
EP 97100021 A 19970102; DE 69707024 T 19970102