access icon free Multi-functional high-isolation dual antenna for controllable wireless charging and NFC communication

For stable wireless charging and reliable data communications in mobile devices, the proposed high-isolation dual antenna operates at two different frequency bands such as 6.78 MHz at wireless charging and 13.56 MHz at near-field communication (NFC). To increase the isolation between antennas, the proposed dual antenna has an antiparallel coil structure. It has achieved approximately more than 20 dB isolation between antenna ports.

Inspec keywords: antenna arrays; coils; mobile handsets; data communication; inductive power transmission; near-field communication; mobile antennas

Other keywords: multifunctional high-isolation dual antenna; antenna ports; antiparallel coil structure; controllable wireless charging; frequency 13.56 MHz; near-field communication; mobile devices; NFC; frequency 6.78 MHz; data communications

Subjects: Other power transmission; Other radio links and systems; Mobile radio systems; Antenna arrays; Electromagnetic induction

References

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http://iet.metastore.ingenta.com/content/journals/10.1049/el.2014.0858
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