Antenna-Filter-Antenna-Based Transmit-Array for Circular Polarization Application
Bibliographic record
Abstract
A novel antenna-filter-antenna-based asymmetric unit cell suitable for transmit-array (TA) is proposed in this letter. This unit cell converts a clockwise circular-polarized (CP) wave to counterclockwise CP with less than 0.5 dB insertion loss at 20.5 GHz, while its rotation provides up to 360° continuous phase shift in the transmitted wave. Hence, a 14 × 14 array of the proposed unit cell is fabricated and placed in front of a CP feed antenna. Placing the TA leads to a 9.5-dBi increase in the gain of the feed, and it redirects the beam to -15° off broadside. The axial ratio of the whole system is close to 2 dB. Therefore, this transmit-array can be used for fixed and/or steerable high-gain radiations for satellite communication in Ka-band.
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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 | 0.000 | 0.000 |
| Open science | 0.001 | 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".