Printed ultra‐wideband elliptical antenna with a frequency‐band notch function
Bibliographic record
Abstract
Abstract Two printed ultra‐wideband (UWB) elliptical antennas are proposed. The first antenna is a printed elliptical antenna with notch cut fed by a microstrip line. It is designed and fabricated for UWB applications under the band (3.1–10.6 GHz). To obtain sufficient matching bandwidth, a partial ground plane, feed gap, and notch cut are used. The antenna is then modified to obtain frequency band notch function of 5.2/5.8 GHz by inserting a U‐shaped slot beneath the notch cut in the elliptical patch. A parametric study is carried out to optimize the proposed structures. The measured bandwidth for the designed antenna without U‐shaped slot is 8.35 GHz. For the antenna with U‐shaped slot, the measured bandwidth is from 3.08 to 11.00 GHz with band rejection from 4.70 to 5.84 GHz. Good radiation patterns and antenna gains, except in the notched frequency band, have also been obtained. Details of the proposed antenna designs and the measured results are presented and discussed. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 860–864, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24183
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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".