Monolithically-Integrated Quarter-Spherical Bandstop Filters
Bibliographic record
Abstract
This paper discusses a unique design and integration concept for high-quality factor (Q) monolithically-integrated 3D bandstop filters (BSFs) using quarter-spherical resonators. Monolithic integration is facilitated by: i) stereolithography apparatus (SLA) 3D printing and ii) EM design methodologies focused on the realization of a self-supported geometry. A coaxial excitation scheme is proposed to facilitate utilization in connectorized RF systems. For proof-of-concept validation purposes, two BSF prototypes were designed, manufactured, and tested. They include a two-resonator BSF configuration with center frequency (f<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">cen</inf>): 11.9 GHz, 3-dB rejection fractional bandwidth (BW): 4.5%, maximum stopband rejection: 61 dB and a four-resonator BSF with f<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">cen</inf>: 11.8 GHz, 3-dB rejection bandwidth (BW): 4%, maximum stopband rejection: 85 dB.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| 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 | 0.000 | 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 teacher head, 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".