RFID antenna device and RFID sensor device

An RFID antenna device (10) for emitting and/or receiving circularly polarised electromagnetic radiation, comprising a radiator unit (12) which has a radiator network (14) with multiple at least partially curved radiator portions (16) and an auxiliary antenna (20) which is galvanically isolated from...

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Bibliographische Detailangaben
Hauptverfasser:	Bauch, Christoph, Lechler, Marc, Hauser, Fabian, Schweizer, Daniel, Graf, Thomas, Kar, Debraj
Format:	Patent
Sprache:	eng
Schlagworte:	ANTENNAS, i.e. RADIO AERIALS BASIC ELECTRIC ELEMENTS CALCULATING COMPUTING COUNTING ELECTRICITY HANDLING RECORD CARRIERS PHYSICS PRESENTATION OF DATA RECOGNITION OF DATA RECORD CARRIERS
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Beschreibung
Zusammenfassung:	An RFID antenna device (10) for emitting and/or receiving circularly polarised electromagnetic radiation, comprising a radiator unit (12) which has a radiator network (14) with multiple at least partially curved radiator portions (16) and an auxiliary antenna (20) which is galvanically isolated from the radiator network (14) and is inductively or capacitively coupled to the radiator network (14), a supply network unit (22) having a power division portion (26) with a device port and having at least one delay portion (28) which is electrically conductively connected to the power division portion (26) and is electrically conductively connected to the radiator portions (16), wherein the auxiliary antenna (20) is centrally located between the radiator portions (16). Further, an RFID sensor device comprising such an RFID antenna device (10).