Reconfigurable OAM Antenna With Flexibility on Mode Numbers, Polarization, and Frequency
Bibliographic record
Abstract
As existing Orbital Angular Momentum (OAM) antennas have no control on the operating frequency after fabrication and cannot simultaneously manipulate the polarization and mode number, designing smart OAM wireless communication systems are out of reach. However, in this paper, a new OAM antenna system is proposed that can efficiently overcome the aforementioned limitations. The suggested antenna utilizes a 2×2 Uniform Circular Array (UCA) composed of Multiple-Input-Multiple-Output (MIMO) antennas to introduce the MIMO-UCA technique for simultaneous generation of OAM mode numbers +1 and -1. The flexibility on polarization of each mode stems from the fact that each MIMO antenna consists <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex-math notation="LaTeX">$\pm 45^{\circ }$</tex-math></inline-formula> polarized elements, thus utilization of tunable feeds assigns the modes to the desired polarization simultaneously. The flexibility on the operating frequency is due to the frequency-reconfigurability of MIMO antennas as well. The fabricated prototype of the proposed structure verifies the simulated results. The operating frequency can be tuned from 3.8 GHz to 4.4 GHz. Over this band, the maximum gain is preserved above 6 dBi. The mutual coupling between the ports is below -20 dB.
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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".