Depolarizing chipless tags with polarization insensitive capabilities
| Autor: | Filippo Costa, Michele Borgese, Giuliano Manara, Simone Genovesi |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Field (physics)
Computer Networks and Communications lcsh:TK7800-8360 02 engineering and technology Chipless RFID 01 natural sciences Radar Cross Section (RCS) chipless RFID cross polarization Frequency Selective Surface (FSS) Radar Cross Section (RCS) Resonator Optics Electric field 0202 electrical engineering electronic engineering information engineering Cross polarization Frequency Selective Surface (FSS) Electrical and Electronic Engineering Ground plane Physics Angular frequency business.industry 010401 analytical chemistry lcsh:Electronics 020206 networking & telecommunications Polarization (waves) 0104 chemical sciences Dipole Hardware and Architecture Control and Systems Engineering Signal Processing business |
| Zdroj: | Electronics Volume 10 Issue 4 Electronics, Vol 10, Iss 478, p 478 (2021) |
| Popis: | A novel depolarizing chipless tag configuration with high angular insensitivity is presented. The basic tag comprises two dipole resonators arranged with a relative rotation of 45°. The proposed configuration improves the depolarization properties performance of a single dipole over the ground plane which provides a peak with perfect polarization conversion only if the electric field impinges at 45° with respect to the dipole resonator. The second dipole arranged at 45° compensates the cross-polar reduction which is observed when the electric field is not correctly polarized. Indeed, when the field is tilted by 90° with respect to the first dipole, it forms an angle of 45° with the second one. The proposed configuration is also analyzed for providing multiple frequency peaks. A tag with 4 angular independent frequency peaks laying between 2 GHz and 5.5 GHz is designed. Angular frequency maps are used to illustrate the peculiar frequency shifts achieved when the electric fields rotate in the plane of the dipole. Finally, a prototype of the polarization insensitive tags is fabricated and measured to confirm the simulated results. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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