Configuration of Waveguide Septa for Radiation of Horizontal Polarization from Slots on Narrow Side Wall in Waveguide Array Antenna for Satellite Synthetic-Aperture Radar (SAR) Applications
Bibliographic record
Abstract
The application of septa to change the oscillating direction of the waveguide fields is demonstrated in this study. For dual-polarization waveguide slot array antennas, two different waveguides are often used to maximize the cross-polarization discrimination level between them. In such arrays, slots may be designed on the narrow sidewall to reduce the element spacing and to suppress the grating lobes. Septums can be used to change the direction of TE10 mode electric fields, so that radiation occurs from the transverse slots on narrow sidewalls. The design and configuration of the septums for a 1×8 slot array on the narrow sidewall of a rectangular waveguide is provided, which shows a simulated gain of 16.2 dBi, reflection of −15 dB, and cross polarization discrimination level of 58 dB.
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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) | 0.001 | 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) | 0.001 | 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 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".