Low-profile Radial Leaky-wave Apertures for Satellite Applications
Bibliographic record
Abstract
Reliable and robust communication with fast-moving satellites in the low-earth orbit requires high gain antennas that are able to electronically steer and direct power to moving targets. In this work, a low-profile leaky-wave solution is proposed that combines the full-space beam-scanning capabilities of transmitarrays and the low-complexity feeding properties of radial leaky-wave antennas that can be used for ground base-station applications. A 2564-element low-profile array (of height 0.5 wavelengths at 19.5 GHz) with a true-time delay phase-shifting mechanism has been designed and simulated which generates a sharp pencil beam of gain, 25 dBi, and is steerable to any arbitrary angle. In addition to the reduction in profile and weight, the demonstration shows minimal beam-squint effects with a 1dB gain bandwidth of 2% and a 3 dB gain bandwidth of 3-5% operating at the K-band, a characteristic not easily attained in large reconfigurable apertures.
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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) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 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".