Design of a Ka-Band Low-Profile Wideband Circularly Polarized Magneto-Electric Dipole Antenna With Parasitic Patches and Its Array
Bibliographic record
Abstract
We propose a low-profile wideband circularly polarized(CP) magneto-electric dipole antenna with parasitic patches. The proposed element, consisting of a pair of inverted L-shaped strips acting as an electric dipole with four parasitic patches, is fed by a longitudinal slot etched on top of a short-ended substrate integrated waveguide, with a height of only 0.1λs. The simulation shows that the element achieves a wide impedance and 3dB axial ratio (AR) bandwidth of 22.1% (from 24.64 to 30.77GHz) and 20.1%(from 25.22 to 30.85GHz) respectively, and a gain of 8.1 ± 0.7 dBic over the operating band. Based on this wideband CP antenna element, a 1x4 linear CP array is designed and fabricated. The proposed array has a wide measured impedance and 3dB AR bandwidth of 17.39%(from 25.42 to 30.26GHz) and 16.93% (from 25.57 to 30.30GHz) respectively, and a gain of 12.0 ± 0.9 dBic over the operating band without using the sequential feed.
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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 | 0.000 |
| 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".