EP 2335315 B1 20160907 - ANTENNA WITH A CONTROLLABLE SWITCHING ELEMENT CONNECTING TWO ANTENNA PORTIONS
Title (en)
ANTENNA WITH A CONTROLLABLE SWITCHING ELEMENT CONNECTING TWO ANTENNA PORTIONS
Title (de)
ANTENNE MIT EINEM STEUERBAREN SCHALTELEMENT, DAS ZWEI ANTENNENTEILE VERBINDET
Title (fr)
ANTENNE POURVUE D UN ÉLÉMENT DE COMMUTATION CONTRÔLABLE RELIANT DEUX PARTIES D ANTENNE
Publication
Application
Priority
- IB 2009054342 W 20091005
- EP 08105537 A 20081009
- EP 09740961 A 20091005
Abstract (en)
[origin: WO2010041189A1] It is described an antenna circuit (120) for a Radio Frequency Identification reader module (140). The antenna circuit (120) comprises a first antenna portion (121) with a first contact node (121a) for connecting the first antenna portion (121) to the Radio Frequency Identification reader module (140), a second antenna portion (122) with a second contact node (122a) for connecting the second antenna portion (122) to the Radio Frequency Identification reader module (140), and a controllable switching element (130), which connects the first antenna portion (121) to the second antenna portion (122). The controllable switching element (130) is adapted to change the ohmic resistance between the first antenna portion (121) and the second antenna portion (122) as a function of a control signal, which is applied to the controllable switching element (130). It is further described a RFID reader system (100), which comprises a RFID reader module (140) and an antenna circuit (120) as described above. Furthermore, it is described a method for adjusting the quality factor of an antenna circuit (120) as described above.
IPC 8 full level
H01Q 1/22 (2006.01)
CPC (source: EP)
H01Q 1/2216 (2013.01)
Designated contracting state (EPC)
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 SE SI SK SM TR
DOCDB simple family (publication)
WO 2010041189 A1 20100415; CN 102177612 A 20110907; EP 2335315 A1 20110622; EP 2335315 B1 20160907
DOCDB simple family (application)
IB 2009054342 W 20091005; CN 200980140137 A 20091005; EP 09740961 A 20091005