Shielding of an electric line source by a finite ground plane and a narrow metal strip
Bibliographic record
Abstract
The article discusses the performance of a finite-width image plane in the shielding of an electric line source. The effect on the shielding effectiveness of a metallic substrate and superstrate laid under and above the line source and image plane is studied in detail. The results are obtained by solving the electric-field integral equation with the point matching method for the case of two-dimensional geometry. For the 30 cm-wide image plane used in the simulations, it is shown that over the 30-1000 MHz frequency band, a narrow strip can reduce the maximum radiated electric field by about 25 dB when the line source is centered over the image plane. Without the strip, the maximum radiated field can increase by up to 12 dB when the source is moved from the center to the edge of the image plane. A noteworthy effect obtained by the addition of the strip on top of the edge-positioned line source is a 14 dB reduction of the maximum radiated field. This fully compensates for the 12 dB increase obtained by moving the strip-less line source from the center to the edge of the image plane.
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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".