Future G Metasurface Antenna Using Dual Axis Galvo Scanner for Free Space Optical Control
Bibliographic record
Abstract
An optically reconfigurable metasurface antenna for Future G beam steering applications is demonstrated experimentally. Optical reconfigurability is achieved by using photodiode arrays to provide a photovoltage to varactors, which in turn provide the required phase shift to enable beam-steering. Illumination of the photodiodes is provided over free space by using a galvo scanner to deflect a laser beam which is delivered from a high-power laser via a multicore fiber. In addition to delivering power over fiber, the same multicore fiber is also used to deliver a 64-QAM 5G NR signal to the metasurface antenna unit. Measured EVM values ranging from 3% to 5.7% for a beam-steering range of 58° are obtained. The use of a galvo scanner for free space illumination of the metasurface antenna not only eliminates the requirement for on-antenna DC bias networks (thus reducing the system complexity), but also allows greater control over illumination of the photodiode arrays, resulting in continuous beam-steering over 58°.
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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) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| 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".