Research Article
Dual-Dipole UHF RFID Tag Antenna with Quasi-Isotropic Patterns Based on Four-Axis Reflection Symmetry
Table 1
Simulated gain values in three planes of the three tag antennas (Unit: dB).
| | Gain | | | | Gain deviation |
| | Linear antenna max. | | | |
3.64 | | Linear antenna min. | | | | | One-fold antenna max. | | | |
3.28 | | One-fold antenna min. | | | | | Proposed antenna max. | | | |
2.64 | | Proposed antenna min. | | | |
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