Wideband circularly polarized single probe‐fed patch antenna
Bibliographic record
Abstract
Abstract A wideband circularly polarized single‐patch single probe‐fed patch antenna is investigated for applications of GPS L5, L2 and Galileo E5a, E5b bands. The wideband circular polarization (CP) is achieved by corner‐truncated square patch and insertion of a thick air layer between the radiating patch and the ground plane. A conducting circular disc is etched on the back side of the substrate to compensate the long inductive probe. The obtained 3‐dB axial ratio (AR) CP bandwidth for 25 and 28.5 mm air layer are 5.9% (71 MHz) and 6.4% (77 MHz), respectively. The later covers the all lower L bands of GPS and Galileo. The realized antenna gain reaches 6.45 dBi over the 3‐dB AR bandwidth. The measured and simulated results are in excellent agreement. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1803–1808, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26965
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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 | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 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".