Quarter-Dual-Mode SIW and Microstrip Line Resonator Stabled Feedback Oscillator
Bibliographic record
Abstract
In this letter, a low-phase noise feedback oscillator based on a quarter-dual-mode (QDM) substrate-integrated waveguide (SIW) and microstrip line is proposed. By combining a QDM SIW resonator with a microstrip line, a third-order transmission response can be achieved without increasing the occupied area. Two transmission zeros (TZs) are generated at the upper passband to increase the group delay peak and an additional TZ at$2f_{0}$to suppress the second harmonic signal. The compact feedback-type oscillator using QDM SIW is designed, fabricated, and measured for the first time, which a circuit size is just about 930 mm2. The experimental results exhibit an output power of 0.22 dBm with a phase noise of −134.66 dBc/Hz at a 1-MHz frequency offset from the oscillation frequency. The oscillation frequency is 10.1 GHz and the corresponding suppression of the second harmonic signal is more than 52 dBc.
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 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 | 0.001 |
| Open science | 0.001 | 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 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".