Mutual Coupling Reduction in 5G MIMO Antenna Using Dielectric Bridge and Superstrate
Bibliographic record
Abstract
A dielectric bridge and superstrate are combined to reduce the mutual coupling between 4- and 8-element ME-Dipole antenna at the millimeter-wave (MMW) frequency range of 52–66 GHz (15.2% bandwidth). The dielectric bridge consists of a carefully inserted metallic plate inside a high dielectric substrate material. This combination is inserted on top of 15-row vias between the 4 and 8 antenna elements. When the superstrate is placed at 2.5 mm (0.5λ) (λ is the free-space wavelength at the center frequency of 62 GHz) above the 4- and 8-element antenna, a maximum mutual coupling of 70 dB and 55 dB is achieved within the 4-element and 8-antenna ME Dipole antenna, respectively, in the H-plane. The edge-to-edge separation between the elements is 0.62 mm (0.12λ). The radiation pattern, S-parameters, and surface current of the reference and proposed antenna are compared to validate the proposed technique.
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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) | 0.000 | 0.001 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.001 |
| 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".