Exploring Low-Loss Wideband Substrate-Integrated Image Guides (SIIG) for Terahertz Applications
Why this work is in the frame
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Bibliographic record
Abstract
This article proposes and explores high-performance substrate-integrated image guide (SIIG) techniques for THz applications. Due to its low-loss transmission, planar geometry, and metallic ground plane that can be shared among other circuit components, the SIIG structure is an ideal candidate for THz integrated circuits and systems development. By conducting modal analysis and selecting proper parameters for geometrical design considerations, the SIIG can provide the best possible performances in the THz regime. An alumina substrate is utilized to fabricate two SIIG prototypes for WR-5.1 and WR-3.5 frequency bands. The experimental results show that one fabricated prototype exhibits a mean insertion loss of 0.578 dB/cm over a frequency range of 135–225 GHz using a dual-line parameter extraction technique. The other fabricated prototype of SIIG presents an average insertion loss of 1.431 dB/cm in the frequency range of 215–335 GHz. Those results demonstrate a promising potential of the SIIG techniques for THz applications. A detailed description of an SIIG structural analysis and also its design procedure are provided.
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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 | 0.001 | 0.003 |
| 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 it