Design and Experimental Evaluation of Miniaturized Monopole UHF RFID Tag Antennas
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Bibliographic record
Abstract
This letter reports the design and experimental evaluation of three compact printed monopole antennas for UHF RFID applications. The antennas that include folded, 2-D meander, and 3-D meander monopole designs are inductively coupled to RFID chips and are fabricated using a 1.524-mm-thick Rogers RB4350B substrate with the relative permittivity of 3.66. Experimental results reveal that these tags cover the worldwide UHF RFID operation band (860-960 MHz) with a maximum readable range of 6.3 m for the folded monopole, 5.39 m for the 2-D meander, and 5.24 m for the 3-D meander monopole designs with an effective isotropic radiated power of 3.28 W. A method for measuring the radiation pattern of an assembled UHF RFID tag without the use of any additional matching circuits or feeding wires is presented. This method is used to measure the radiation pattern of the fabricated 3-D meander monopole tag antenna.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it