Gain improvement of cylindrical dielectric resonator antenna using flat reflector plane: a new approach
Bibliographic record
Abstract
A significantly feasible high‐gain cylindrical dielectric resonator antenna with wideband characteristics is investigated. A simple microstrip‐fed slot coupling technique is adopted for excitation of the cylindrical resonator, which is placed over a square slot made at the centre of the ground plane. The upper side of the dielectric resonator is kept open for interference free radiation. To reduce the unnecessary back radiation, the bottom side of the ground plane substrate is covered by a single side copper coated dielectric reflector (1.35 λ 0 × 1.35 λ 0 × 0.04 λ 0 ) at a small air‐gap distance of 4 mm. This helps in abrupt gain enhancement of 101.48% over 17.14% impedance bandwidth. The effect of the reflector on bandwidth, gain and radiation pattern is studied. For validation purpose, a prototype is fabricated and characterised. The measured peak gains are found to be 10.84 and 10.45 dB while resonating at 7.3 and 8.08 GHz, respectively, which are in good agreement with their simulated counterparts.
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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) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| 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".