A High Gain Circularly Polarized Passive RFID Tag on a Metallic Reflector for UHF Band Applications
Bibliographic record
Abstract
A passive radio frequency identification (RFID) tag using a metallic reflector is proposed to covering UHF band. The antenna consists of a metallic square loop, fed by two strips using a T-match structure in order to ensure matching in impedance between the chip and the proposed antenna. The distance between reflector and antenna is set to a quarter wavelength to achieving a maximum gain. The proposed design shows an impedance bandwidth (IBW) ranges from 907 to 932 MHz (25 MHz). Also, a long reading range up to 22.56 meters is obtained at 915 MHz. Moreover, the proposed geometry shows a broadside circularly polarized (CP) radiation with a high gain of 7.72 dBi. The proposed design is suitable for high-gain, CP radiation RFID applications.
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How this classification was reachedexpand
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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".