Low-cost mm-wave coplanar waveguide bandpass filter using inkjet printing of silver nano-particles on flexible plastic substrate
Bibliographic record
Abstract
This paper demonstrates the feasibility of realizing millimeter wave coplanar waveguide (CPW) bandpass filters through ink-jetting of conductive inks on commercially available plastic sheets such as Polyethylene Terephthalate (PET) (plastic as an RF substrate). A silver nanoparticle colloidal solution was used as the printing ink. The millimeter wave third order CPW bandpass filter, which consists of a cascade of alternating quarter wavelength CPW open end series stubs and quarter wavelength CPW connecting lines, was simulated with Agilent Momentum and printed with a DMP-2800 Series inkjet printing system. The principle of achieving such high-quality circuits is detailed and is also confirmed by theoretical and experimental results, which are in reasonable agreement up to at least 70 GHz. Finally, this work is one step further towards the development of low-cost ink-jet printing of passive microwave and millimeter-wave components for commercial wireless applications.
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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) | 0.000 | 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".