Experimental Characterization of a New Active Huygens’ Metasurface-Based Element for Beam Steerable Lens at Ka-Band
Bibliographic record
Abstract
In this paper, a novel reconfigurable linearly polarized ultrathin unit cell design for lens applications at Ka-band frequencies (26-28.75 GHz) is presented. The proposed unit cell, comprising of two dislocated I-shaped metal strips with integrated varactor diodes on a single substrate, functions as a reconfigurable Huygens’ metasurface-based lens element with both electric and magnetic dipole resonances. The lens performance is further enhanced by adding interdigital parasitic strips between the I-shaped metal strips, which increase the capacitance and extend phase shift range. Additionally, an equivalent circuit model for the proposed Huygens’ metasurface-based unit cell is introduced to provide a clear understanding of the transmission mechanism. Based on this analysis, the proposed unit cell is fabricated and characterized in a specific waveguide simulator, allowing the validation of the design concept and ensure the performance of the varactor diode before proceeding with the full array fabrication. Experimental result demonstrates a broadband transmission phase shift with substantial tunability over a fractional bandwidth of 10%. The low loss performance of the proposed element makes it an attractive candidate for electronically steerable flat-lens antennas.
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 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".