Switchable dual/triple‐band circularly polarised slot antenna by using artificial transmission line
Bibliographic record
Abstract
A single‐feed dual and triple‐band reconfigurable planar single layer circularly polarised (CP) slot antenna is presented. This novel low‐cost slot antenna composed of L‐shaped feeding stub with modified open split‐ring resonator (MOSRR) and complementary split‐ring resonator (CSRR). Multi‐frequency operation with CP radiation characteristics is achieved by using artificial exciting stub with combining MOSRRs along microstrip feeding line and defecting CSRRs on it. By inserting two PIN diodes inside the MOSRRs, several wireless frequency bands over 2.4–5.5 GHz with capability of switching are obtained. The simulated and measured results show that the proposed antenna can switch between two states including one dual‐band mode (3–3.45/4.5–5.2 GHz) and one triple‐band mode (2.3–2.43/3.3–3.43/5.2–5.42 GHz) that covers most of the commercial wireless communication systems, such as WLAN (IEEE 802.11), LTE and WiMAX. Different characteristics of each state such as impedance and 3 dB axial ratio bandwidths, radiation patterns and gains of the proposed antenna will be presented.
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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 | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| 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".