Radio frequency identification (RFID) is a widely used technology for contactless data readout. Numerous passive RFID tags are available on the market, and in a vast majority of cases, their designs are based on flat meandered dipole architectures. However, besides technological advantages, those realizations suffer from polarization mismatch issues and limited spatial sectors, from which flat tags can be interrogated. Here, we demonstrate and analyze a miniature omnidirectional tag accessible from all 4π stereo angles with a commercial RFID reader. Our design is based on exploring all three dimensions, which allows achieving close to perfect angular coverage by overlapping several multipole resonances of a structure. An optimized metal strip with a nontrivial geometry is wrapped on a high permittivity ceramic sphere for miniaturization purposes. As a result, a 3 cm device (tenths of an operational wavelength) is demonstrated to be readable from a 1.5 m distance without any dependence on the interrogation direction. Compact omnidirectional tags can remove hard restrictions on a mutual orientation between information holders and interrogating systems. Those capabilities are essential in many applications, including logistics, animal activity monitoring, and security, to name just a few.
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19 July 2021
Research Article|
July 20 2021
Omnidirectional miniature RFID tag
Anna Mikhailovskaya
;
Anna Mikhailovskaya
a)
1
School of Electrical Engineering, Tel Aviv University
, Tel Aviv 69978, Israel
2
Department of Physics and Engineering, ITMO University
, St. Petersburg 197101, Russia
a)Author to whom correspondence should be addressed: [email protected]
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Ildar Yusupov;
Ildar Yusupov
2
Department of Physics and Engineering, ITMO University
, St. Petersburg 197101, Russia
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Dmitry Dobrykh;
Dmitry Dobrykh
1
School of Electrical Engineering, Tel Aviv University
, Tel Aviv 69978, Israel
2
Department of Physics and Engineering, ITMO University
, St. Petersburg 197101, Russia
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Sergey Krasikov
;
Sergey Krasikov
2
Department of Physics and Engineering, ITMO University
, St. Petersburg 197101, Russia
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Diana Shakirova;
Diana Shakirova
2
Department of Physics and Engineering, ITMO University
, St. Petersburg 197101, Russia
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Andrey Bogdanov
;
Andrey Bogdanov
2
Department of Physics and Engineering, ITMO University
, St. Petersburg 197101, Russia
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Dmitry Filonov
;
Dmitry Filonov
3
Center for Photonics and 2D Materials, Moscow Institute of Physics and Technology
, Dolgoprudny 141700, Russia
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Pavel Ginzburg
Pavel Ginzburg
1
School of Electrical Engineering, Tel Aviv University
, Tel Aviv 69978, Israel
3
Center for Photonics and 2D Materials, Moscow Institute of Physics and Technology
, Dolgoprudny 141700, Russia
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a)Author to whom correspondence should be addressed: [email protected]
Appl. Phys. Lett. 119, 033503 (2021)
Article history
Received:
April 21 2021
Accepted:
July 05 2021
Citation
Anna Mikhailovskaya, Ildar Yusupov, Dmitry Dobrykh, Sergey Krasikov, Diana Shakirova, Andrey Bogdanov, Dmitry Filonov, Pavel Ginzburg; Omnidirectional miniature RFID tag. Appl. Phys. Lett. 19 July 2021; 119 (3): 033503. https://doi.org/10.1063/5.0054740
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