Using a Half-mode SIW Loaded with Slots to Realize a Compact UWB Bandpass Filter
Bibliographic record
Abstract
This paper presents an ultra-wideband bandpass filter (UWB-BPF) based on a half-mode substrate-integrated waveguide (HMSIW) structure with a passband that spans from 4.12 to 11 GHz and has a center frequency of 7.56 GHz with a fractional bandwidth of 91%. Less than 0.3 dB of insertion loss was achieved through the passband, with the return loss being better than 19 dB. Two transmission zeros were generated, contributing to the 5.24 GHz out-of-band rejection. The proposed filter is compact, making it a good choice for space-constrained systems. In addition, a notch response has been utilized to comply with standards issued by applicable regulatory bodies, by blocking some bands located in the passband. Ansys EDT software was used to implement the design and determine the response of the proposed structure, while Keysight ADS was used to validate the results.
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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 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.001 |
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".