Compact microstrip-fed antenna for 2.4/3.5/5.2/5.8 GHz wireless communication systems
Bibliographic record
Abstract
A compact low-cost planar antenna is proposed to cover the WLAN frequency bands centered at 2.4, 5.2 and 5.8 GHz. It was observed that the resonant frequencies of the antenna can be easily adjusted. The return loss in the 5.2 to 5.8 GHz range is effectively controlled by using a strip to short out the surface current. The antenna shows a donut-shaped radiation pattern in the E-plane and an omnidirectional radiation pattern in the H-plane for both lower and upper WLAN frequency bands. Inserting an additional radiating element into the antenna geometry allows the antenna to operate in the WiMAX frequency band at 3.5 GHz, as well as the WLAN frequency bands. The housing effect of devices in the vicinity of antenna is also investigated, and it is observed that the orientation of the antenna to a nearby box is critical in maintaining the performance of the antenna.
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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) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| 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) | 0.002 | 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".