Class of miniaturised/arbitrary power division ratio couplers with improved design flexibility
Bibliographic record
Abstract
This study describes a new class of couplers using single‐layer microstrip lines that reduce the occupied area, suppress the harmonic components and provide arbitrary power division ratios. It consists of lumped reactances between transmission lines to reach realisable impedances and shorten line lengths. To provide a design guideline, closed‐form formulas are derived and five different designs are produced and built to investigate the couplers performance and design accuracy. The simulation results prove to be in good agreement with measurements. More than 70% size reduction with respect to the conventional structures, 12 dB harmonic suppression and high power division ratios (9:1) achieved in various presented branch line, rat race and multi‐section Wilkinson dividers. This proposed class of coupler structures can effectively be used in miniaturised and/or arbitrary power division ratio couplers with harmonic suppression.
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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 | 0.001 | 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".