RFID TAG ANTENNA WITH CAPACITIVELY OR INDUCTIVELY

专利名称：RFID TAG ANTENNA WITH CAPACITIVELY

OR INDUCTIVELY COUPLED TUNINGCOMPONENT

发明人：Swagata R. Banerjee,Robert A. Sainati,Ronald

D. Jesme

申请号：US12621278申请日：20091118

公开号：US20100123553A1公开日：20100520

专利附图：

摘要：This disclosure describes RFID tags designed to provide improved impedance

matching capabilities. An RFID tag may include a radiating component and a tuningcomponent located on different layers of the RFID tag. The radiating component andtuning component are located proximate to one another to provide a proximate coupling(e.g., an inductive and/or capacitive coupling). In one embodiment, at least a portion ofthe radiating component of a first layer overlaps at least a portion of the tuningcomponent of a second layer, resulting in a proximate coupling. The tuning componentmay be used for tuning the antenna, e.g., matching an impedance of the radiatingelement and an IC chip electrically connected to the tuning component. Because theradiating element does not have to be designed to match impedances, the radiatingelement may be designed to provide better gain, polarization purity, larger radar crosssection or other antenna parameters.

申请人：Swagata R. Banerjee,Robert A. Sainati,Ronald D. Jesme

地址：North Oaks MN US,Bloomington MN US,Plymouth MN US

国籍：US,US,US

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