Multi-Beam Radiation Properties of Higher-Order Space Harmonics-Enabled Leaky-Wave Antenna
Bibliographic record
Abstract
In this work, we investigate the inherent physical behavior of higher-order space harmonics (HSH) along one-dimensional periodic leaky-wave antenna (ID-periodic LWA) structures. The interdependency of even n$\in$[-2, -4] and odd n$\in$[-1, -3] HSH on each other is examined in detail and a method is devised and demonstrated for analyzing their radiation properties which allow us to develop a multi-beam antenna (MBA) without using any feeding network. In addition, the scanning range of n$\in$[-1, -2, -3, -4] space harmonics is studied and their limitation is discussed. The proposed concept is then validated by designing an LWA utilizing the substrate integrated waveguide (SIW) technology in which the n$\in$[-1, -2] space harmonics are used for achieving a MBA exhibiting wide scanning capability. The experimental results obtained in this work shows a good agreement with the simulation and analysis counterparts.
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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 | 0.001 |
| 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".