Phase-Shifter-Free Reconfigurable Array Architecture Using Pattern Rotation---Part I: Theory and Validation
Bibliographic record
Abstract
A unified reconfigurable array architecture is proposed, supporting two-phase modulation mechanisms: element rotation and initial phase modulation. Both approaches enable subarray-level beam steering without needing phase shifters or complex feeding networks, facilitating large-scale array beam scanning with fewer radio frequency channels. An innovative beamforming method is introduced in Part I, leveraging element rotation within an N<sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">s</sub>-element (6-element) linear subarray. Vertical partition scanning within ±θ<sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">max</sub> (±10°) is achieved by presetting the tilt angles of the elements in the N<sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">s</sub>-element subarray (6-element). A longer linear array of N<sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">y</sub>-elements formed by M<sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">s</sub>-subarrays is formed (N<sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">y</sub>=M<sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">s</sub>×N<sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">s</sub>). A high-profile N<sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">x</sub>×N<sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">y</sub> array (8×24) of Yagi elements achieves two-dimensional beam scanning at 4.5 GHz with a grating lobe suppression algorithm. To generalize this approach, a theoretical framework is established that incorporates concepts such as phase smoothing region, deflection phase, intrinsic phase, and initial phase modulation, ultimately extending the rotation-based method into a universal initial phase control scheme. Simulation and measurement results confirm that replacing conventional small-ratio power dividers with 1-to-N<sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">s</sub> equal-dividers preserves low sidelobe levels in vertical scanning, maintains original horizontal scanning performance, and achieves channel capacity parity with full-channel systems. Part II will further validate the approach by designing and implementing a dual-polarized base station antenna element with electronically tunable initial phase control.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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".