A compact balanced antipodal bow‐tie antenna having double notch‐bands
Bibliographic record
Abstract
ABSTRACT A balanced antipodal bow‐tie antenna is presented for ultrawideband (UWB) applications. Bandwidth enhancement and size reduction are achieved by introducing staircase edging to the peripheral of the patch radiator, and by tapering the microstrip feed balun to generate balanced currents on each branch of radiator. The antenna provides band‐notch functionality by embedding dumbbell‐shaped slots within the radiator, and adding an open‐circuit L‐shaped meander stub. The small and low‐profile antenna can easily be fabricated on a single layer of FR4 substrate with dimensions of 26 × 31 × 1.6 mm3. Good correlation is obtained between the simulated and measured results. The antenna operates across 2.8–11 GHz to fully satisfy Federal Communications Commission's UWB specifications. In addition, the antenna provides notch‐bands across 3.3–4 and 5–6 GHz to minimize interference from the WiMAX and WLAN networks. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:2010–2014, 2014
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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) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 0.002 |
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".