Broadband dielectric loaded parallel coupled microstrip quadrature coupler
Bibliographic record
Abstract
ABSTRACT In this article, a wideband dielectric loaded coupled line microstrip 90° hybrid coupler is proposed. The effect of changing the effective dielectric constant of substrate by dielectric loading is capitalized to tune the even‐ and odd‐mode velocities of coupled line to achieve wideband performance. Two different designs are perturbed by dielectric loading to achieve minimum amplitude and phase imbalance with good isolation. The simulated and measured results exhibit a coupling of 3 ± 0.7 dB across the band 3.5–10 GHz. The return loss and isolation are found to be better than 15 dB with 3° phase imbalance over the ultrawideband band. The designed coupler has compact size with a dimension of 30 × 20 mm 2 . © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1694–1697, 2014
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.
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 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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 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".