Dual-Polarized OAM Antenna with Frequency and Mode Agility for Intelligent OAM Communications
Bibliographic record
Abstract
A new dual-polarized Orbital Angular Momentum antenna is proposed with the capability of mode and frequency reconfigurability to pave the way for designing smarter OAM communication systems. At the first step, a dual-polarized Multiple-Input Multiple-Output (MIMO) antenna is introduced. Later, a 2×2 Uniform Circular Array (UCA) is considered using the mentioned MIMO antennas. Since each MIMO antenna owns two input ports, two 2×2 sub-UCA is obtained having orthogonal polarizations. Reconfigurable feeding networks can produce the necessary phase gradients for generating OAM modes +1 and -1 in each sub-UCA. Frequency-tunability of the structure is achieved due to the frequency-adjustability of MIMO antennas as well. According to the simulated results, the frequency tuning range is from 3.8 GHz up to 4.4 GHz, preserving the OAM characteristics. Maximum gains over 6.75 dBi are achieved over the band. Thus, the proposed systems, with tunability on mode and frequency, and having dual-polarized feature, is the new candidate for future intelligent OAM communications.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| 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 | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.001 |
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 source (direct Gemma or distilled Codex), 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".