Analysis and Design of Broadband Ridge-Gap-Waveguide Tight and Loose Hybrid Couplers
Bibliographic record
Abstract
A wideband broad-wall directional coupler is designed using the ridge-gap-waveguide (RGW) technology operating on the quasi-TEM mode. Large coupling apertures are used between two mirrored RGWs. Several coupling levels are achieved according to the number of apertures used and the ridge height in the two RGWs. Furthermore, a design procedure to obtain the desired coupling levels is introduced. Simulations and measurements show that tight-to-loose coupling levels (3-33 dB) can be achieved with the same coupler configuration, but with different parameters within ±1-dB coupling variations. The couplers achieve better than 15-dB return loss and better than 20-dB isolation within a 40% bandwidth with ±1 dB and ±2 degrees of magnitude and phase errors, respectively.
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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) | 0.000 | 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) | 0.000 | 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".