Inventors
Corbett R Rowell, Hau-Wah Lai, Chi-Lun Mak
Publication date
2011/11/15
Patent office
US
Patent number
8056819
Application number
12251244
Description
For wireless communication, far field transmission and reception of electromagnetic waves is familiar, even to con Sumers. Applications utilizing near field energy also exist and are becoming increasingly common. For instance, Radio Frequency Identification (RFID) appli cations usually employ near field transmitters and detectors. Structures used to transmit and receive near field energy are referred to as Radio Frequency (RF) coils (as opposed to antennas), and include structures Such as loop coils, spiral coils, and dipole-like wires, etc. Thus, whereas the term “antenna’refers to a far field radiating structure, RF coils are understood to be for near field applications. An outgrowth of RFID is Near Field Communications (NFC), which is an extension of the ISO 14443 standard. An NFC device typically includes an interface of a contactless
Total citations
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Scholar articles
CR Rowell, HW Lai, CL Mak - US Patent 8,056,819, 2011