A K-band circularly polarized cavity backed dielectric resonator
Bibliographic record
Abstract
A high efficiency linear polarized antenna consisting of a patch fed cavity has already been developed for use in personal communication terminals. It possesses several desirable features for active array applications, particularly the ease of RF component integration and heat removal. As part of the continued development of this antenna, it is very desirable to extend the capabilities to include future circularly polarized (CP) applications. The logical step for achieving the CP performance is to replace the linearly polarized feed patch with a single point feed CP patch. A single point feed is preferred in order to maintain the simplicity of the feed network. This approach, however, has a major drawback of possessing a narrow axial ratio bandwidth. To improve the axial ratio bandwidth, an alternative CP feed antenna is required. Research in circularly polarized dielectric resonator antennas (DRAs) has shown that a wide axial ratio bandwidth can be achieved from a single point fed DRA. The performance of the dielectric cross within a cavity structure is investigated. The optimization of the geometry and the effects on overall operation are discussed.
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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 | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.002 |
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".