Internal slot phase varying in traveling‐wave substrate‐integrated waveguide slot antennas and appropriate modeling
Bibliographic record
Abstract
ABSTRACT In this letter, a new alternative configuration of slotted radiating elements in substrate‐integrated waveguide (SIW) is proposed. It yields a greater control over the transmission phase of the slotted waveguide section. This allows a precise conception of traveling‐wave slot antennas in SIW, including those with a high width‐to‐height ratio. Altering the phase by internal measures, instead of displacing slots, is revealed to be very suitable in achieving a good side lobe performance and a broadside beam with less computation effort. For this sake, multiple vias are inserted sophistically in all elements while upholding low reflection and unaffected radiation. A simplified yet bidirectional signal flow graph completes the straightforward approach. Validation is carried out first by comparing slot amplitudes of three different arrays, designed through different procedures, with ideal desired values. Second, fabricated and simulated circuits are evaluated in terms of reflection and radiation performance. The good results demonstrate that this new alternative way to configure a slot antenna in traveling‐wave architecture is a very good candidate in particular for low‐effort applications. A MATLAB test script is provided for further validation and design. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1303–1307, 2014
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 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 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 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 teacher head, 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".