Wideband Low Axial Ratio and High-Gain Sequentially Rotated Antenna Array
Bibliographic record
Abstract
A 2 × 2 sequentially rotated antenna array with high gain and wide axial ratio (AR) bandwidth is designed. The antenna element consists of a microstrip patch fed with a series power divider through four L-shaped probes. Low AR ≤ 1 dB is guaranteed by reiterating the employment of the series power divider at the array level, and optimizing the antenna element impedance matching bandwidth performance. A prototype of the antenna array is manufactured for the ultrahigh frequency radio frequency identification bandwidth, with overall size 1.32 × 1.32 × 0.065 λ <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sup> . Measurement shows a S11 ≤ -10 dB bandwidth of 36.5% (0.76-1.1 GHz), an AR ≤ 3 dB bandwidth of 28.8% (0.823-1.1 GHz) with AR ≤ 1 dB within 0.846-1.015 GHz (18.2%). Moreover, a peak gain of 13.2 dBic, and a 3 dB gain bandwidth of 26.1% are observed. The presented antenna exhibits outstanding AR performance and high gain despite its low design and implementation complexity.
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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".