A Ka‐band quasi‐optical power‐divider basing on Talbot Effect of phase grating
Bibliographic record
Abstract
Abstract A new design of quasi‐optical (QO) power divider at millimeter wave band is presented in this article. The Talbot Effect of periodical phase grating is applied to realize power dividing with high efficiency. A novel periodic phase profile was adopted to make a linear region of zero diffraction filed. Then a closed metallic cavity can be used to screen the power divider with the wall placed in this region without disturbance to field distribution and efficiency degrading, which improves electromagnetic compatibility of QO power combining system greatly. The Scalar Diffraction theory is applied to analyze the “Talbot Pattern” and then generic algorithm is used to optimize the phase profile. A 1 × 18 divider was designed and tested at 37.5GHz. The efficiency is tested to be 80.8%, which is well agreed with the simulated value of 88.7%. Since efficiency of QO power divider/combiner is essentially independent of the number of combining elements and the inter‐element spacing, this technology can be extended to power dividing or combining of large number of ways up to THz band. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:1331–1336, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25975
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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 | 0.001 |
| 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".