Cross-Coupled Substrate Integrated Waveguide Filter Using Orthogonality to Improve Selectivity
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
The substrate integrated waveguide (SIW) filters usually employ cross coupling to achieve quasi-elliptic responses, getting steep selectivity near the passband. However, the added cross coupling also facilitates the transmission of spurious modes, leading to significant spurious passbands and insufficient selectivity in the stopband. It has been challenging to address this problem effectively. In this letter, we propose a solution. By using the orthogonality of spurious modes and coupling paths, spurious modes can be naturally suppressed in both the main and cross-coupling paths, thereby suppressing spurious passbands and improving selectivity in the stopband. At the same time, the quasi-elliptic response remains unaffected, which can be designed as usual, and the structure change is very small without increasing the complexity compared with the conventional design. It should be effective for developing SIW filters in microwave and wireless circuits and systems.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.002 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.002 | 0.003 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.002 |
| 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