Design of dielectric immersed tapered slotline antenna for radar‐based microwave breast imaging
Bibliographic record
Abstract
Abstract An ultra‐wideband, dielectric‐immersed antenna has been developed for a breast tumor detection system. The antenna is a tapered slotline that operates in a low permittivity dielectric. The sensor is fed by an ultra‐wideband microstrip‐to‐slotline balun. Simulations of the balun and the tapered profile demonstrate that reflection coefficient bandwidth of each structure spans 2–12 GHz. The antenna and balun are implemented with a photolithography process, and good agreement is obtained between simulated and measured results for the entire structure. To evaluate the suitability of the antenna for the intended application, measurements are performed with a variety of objects placed in a homogeneous background. Detection and location of the objects are explored. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 633–638, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24112
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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 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.001 |
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".