Bibliographic record
Abstract
Owing to simplicity, polarization purity, power capacity, good match, and low cost, the use of a coaxially fed monopole in a parallel plate waveguide is an attractive option as an adapter or a feed and has been extensively investigated for years. However, a simple coaxially fed linear monopole particularly offers a narrow impedance bandwidth. So some modified monopoles have been often applied to wireless communication antennas in the past decades. The input impedance performance has been significantly improved by means of the various loading techniques, such as dielectric coatings, attached dielectric resonator structures, and disc-ended or top-hat structures. Previously, an alternative is a leaky-mode aperture-coupled dielectric resonator, which has been successfully used as a feed of a class of omnidirectional antennas suitable for wireless communication systems. In this article, a novel sleeve monopole type is proposed to further improve the impedance performance of a monopole. This structure simply consists of a second sleeve and a sleeve monopole vertically put between a parallel plate waveguide. Compared to traditional structures used in a parallel plate waveguide, this modified sleeve monopole has the merit of noticeably broad impedance bandwidth and still maintains the feature of simple structure, low cost, and pure polarization. Because of simple manufacture, broad bandwidth, and good match, this novel structure has shown a promising potential application in various microwave applications and wireless/satellite communications.
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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 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 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".