A Low-Profile Self-Duplexing Antenna for Millimeter-Wave and Microwave Frequency Bands
Bibliographic record
Abstract
This paper presents a compact self-duplexing antenna working at mm-wave and microwave frequency bands. The configuration is based on Half-mode Substrate Integrated Waveguide (HMSIW) and operates at 5.8 GHz and 38 GHz. In the design of the antenna, initially, a square cavity is cut into two triangles. Then, one of the triangles is considered. After that, the chosen triangle is bisected into two portions. The bigger one is taken for the microwave frequency band, and the other one is taken for the mm-wave frequency band. Finally, by introducing four capacitive slots, the desired frequency bands are achieved. The isolation between the two ports is 22 dB. In addition, the gains of the proposed antenna at two frequencies are 3.35 dBi (5.8 GHz) and 5.48 dBi (38 GHz). Furthermore, the size of the proposed antenna is only$0.002 \lambda_{g}^{3}$which is the most compact self-duplexing antenna in literature that operates at both microwave and mm-wave frequency bands. The aforementioned results show that the proposed antenna is a good candidate to use in dual-band application systems.
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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 | 0.001 | 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".