Compact Multilayer Half Mode Substrate Integrated Waveguide 3-dB Coupler
Bibliographic record
Abstract
In this letter, a wideband compact 3-dB coupler is designed based on the multilayer half mode substrate integrated waveguide (HMSIW) theory and Bethe hole coupling theory. The design utilizes higher band of quasi-TE <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">0.5,0</sub> mode in HMSIW and dual-layer structure to reduce the size of component. This letter also theoretically proposes a relationship between SIW and HMSIW broad wall coupler with the same coupling section, which can obviously simplify the design procedure and maintain stable coupling differences. Meanwhile, this coupler shows a 3-dB coupling over a wide bandwidth with a single row of only five small apertures, which needs more in SIW and waveguide circuits. In long term, the method of cutting SIW components along magnetic wall to get HMSIW components can also play an important role in the future design, especially in size reduction and performance improvement of the circuits. Simulation results are in agreement with the measured data.
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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) | 0.001 | 0.001 |
| 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 | 0.000 |
| 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".