Millimeter-Wave Air-Filled SIW Antipodal Linearly Tapered Slot Antenna
Bibliographic record
Abstract
The emerging millimeter-wave wireless technologies spur the development of low-cost and high-performance devices, circuits, and systems. It is in this context that an air-filled substrate integrated waveguide (AFSIW) antipodal linearly tapered slot antenna (ALTSA) made of a multilayer printed circuit board process is proposed in this letter. The proposed three-layered AFSIW structure provides very low loss and is of high interest for the design of highly efficient ALTSA. For comparaison, the proposed AFSIW ALTSA and a convientional SIW ALTSA are designed, fabricated, and measured at Ka-band (26-40 GHz). For identical dimensions, at 35.5 GHz, the proposed antenna exhibits a 17° narrower measured xy-plane half-power beamwidth and a simulated radiation efficiency improved by 2.9%. The narrower beamwidth and efficiency improvement results in a simulated directivity and measured gain improved by 3.9 and 4 dB, respectively, at the same frequency. This antenna is of interest for the design of efficient array based on AFSIW feeding network.
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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 | 0.000 |
| 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 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".