On Replacing the Quarter-Wave Section of a Directional Coupler with Lumped LC Elements
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Bibliographic record
Abstract
The presentation is devoted to the study of replacing quarter-wave sections in two-loop LC directional couplers with elements with a low-pass filter (LPF) structure. The main purpose of the presentation is to determine the values of LC elements that do not significantly degrade the coupler characteristics. By comparing the ABCD matrices of the LC structure and the <tex>$\lambda / 4$</tex> segment, it was possible to derive formulas for calculating the values of inductances and capacitances. Comparison of filters of the 3rd, 5th, 7th orders allowed to reveal a regularity and to find approximating relations for calculation of LC structure elements of any order. The results of the work provide engineers with an opportunity to evaluate the prospects of using LC structures in the design of compact microwave devices.
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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 it