Dual-Band Metasurface-Based Closely Packed Antennas by Controlling Surface Wave Propagation
Bibliographic record
Abstract
In this paper, a dual-band metasurface (MS)-based slot antenna with bidirectional and unidirectional radiation patterns is proposed. The MS is simultaneously used to reduce mutual coupling for the closely packed antenna system. The proposed antenna is a single-layer CPW-fed slot antenna integrated with an MS-based superstrate. The lower band and the higher band are generated by the slot and the MS, respectively, which yields the advantages of independent and flexible frequency control. The impedance matching bandwidths (|S11|<-10 dB) are 3.44-3.54 GHz (a relative bandwidth of 2.9%) and 4.38-5.84 GHz (28.6%). Bidirectional and unidirectional radiation patterns are obtained in the two bands, respectively. Moreover, a 2 X 1 edge-to-edge closely packed (∼0 space) dual-band antenna array is proposed by simply reusing the MS for multiple-input multiple-out (MIMO) systems. Over 18.3 dB and 19.7 dB isolations are obtained by suppressing the surface wave in the lower band and steering the radiation pattern in the higher band. The proposed antennas can find applications in dual-band MIMO and 5G communication systems.
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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) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| 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".