Loading Rims of Radio Telescopes with Reconfigurable Reflectarrays for Adaptive Null-Steering
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
In an attempt to realize a concept presented in a precursor paper by the same authors, the design of a reconfigurable reflectarray providing a radio telescope with adaptive null steering capabilities is presented. The reflectarray occupies a paraboloidal annulus-shaped portion of the original reflector's surface. The remaining reflector surface and the reflectarray is modeled using reflection coefficients. The reflection coefficients for the reflector are set equal to -1. The reflection coefficients for the reconfigurable reflectarray are obtained from full-wave unit cell simulations of pin-diode-loaded patch antennas. The states of the switches required to drive a null in a particular direction are determined using a simple serial search algorithm. The reflection coefficients are related to a physical-optics-based current density. The current density can be integrated to obtain the far fields. An example of an 18m axisymmetric paraboloidal reflector antenna designed to drive a null to an angle of 1.75° from the axis of symmetry is provided.
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.
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 it