Design of the quarter-mode substrate integrated waveguide in-phase and out-of-phase filtering power divider
Bibliographic record
Abstract
In this paper, a series of the quarter-mode substrate integrated waveguide (QMSIW) Altering power dividers (FPD)s with compact size are proposed. The FPDs are designed in two forms which are in-phase and out-of-phase topologies, respectively. As for the in-phase FPD, two QMSIW cavities are coupled by the inductive windows in the single-layered substrate to obtain a two-pole filtering response. As for the out-of-phase FPD, the multilayer substrate integrated waveguide structure is utilized to achieve a 180° reverse phase characteristic between two outputs. Measured results show that, the proposed in-phase QMSIW FPD has a 3-dB fractional bandwidth of 41.4% (4.6-7 GHz). Moreover, the amplitude and phase imbalances are measured less than 0.3 dB and 2.4°, respectively. The out-of-phase QMSIW FPD is measured at 5.8 GHz. In addition, the amplitude and phase imbalances are measured less than 1 dB and 2.6°, individually.
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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 | 0.001 | 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".