Broadband High Gain SIW-Based H-Plane Horn Antenna for Ku/K Band Application
Bibliographic record
Abstract
In this paper, a substrate-integrated waveguide (SIW)-based H-plane horn antenna with a broader impedance bandwidth and high peak realized gain (PRG) for broadcast satellite (Ku/K band, 12.5-26.5 GHz) and fixed satellite K band, 18-26.5 GHz) services applications is presented. A tapered microstrip transition is used in the feeding section to obtain the broadband characteristics. In addition, the multistrip transition also helped to enhance the fractional impedance bandwidth (FIBW), radiation characteristics and to improve the PRG. This mechanism of bandwidth increase can be explained by applying the coupled resonators theory. The antenna is designed, fabricated, and tested. The measured FIBW of 16.3%, the PRG of 10.56 dBi at the end-fire direction, the maximum radiation efficiency of 88.56%, and the cross-polarization level below - 35 dB have been achieved at the center freqency of 19 GHz.
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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 | 0.000 | 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".