Ultra-compact Implantable MIMO Antenna with Radiation Pattern Diversity for Scalp-based Implants
Bibliographic record
Abstract
This work presents the development of a new ultra-compact implantable two-element MIMO antenna with radiation diversity for bio-telemetry communication in scalp-based implants. The design consists of two separated mirrored semicircular slotted patches that radiate in dissimilar directions to enable radiation diversity. The proposed antenna occupies a very compact volume of 4.085 mm3and is designed to resonate at 2.4 GHz. Two different numerical techniques were used to validate the antenna's performance in a scalp-based environment. Due to symmetry, both antenna's radiating elements achieved a fractional bandwidth of 25.13% and a peak gain of -19.8 dBi at the resonance frequency. The antenna showed an ability to radiate in two dissimilar directions with a radiation coverage angle of ± 60°. Specific absorption rate and link budget analyses were conducted and demonstrated the antenna's ability to perform bio-telemetry communication at high data rates of up to 100 Mbps while satisfying power safety regulations.
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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 | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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 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".