Adaptive Power Controllable Retrodirective Array System for Portable Battery-Operated Applications
Bibliographic record
Abstract
An adaptive power controllable retrodirective array system is presented for a portable applications. The proposed system is able to turn on only when it needs to operate so that it can avoid wasting battery power in idle mode. This power management is accomplished by employing a rectenna and an analog switch into a battery-operated system. When an RF signal is received by an antenna, it is divided into a rectenna and a receiver, where most power is sent to a rectenna through a 15-dB coupler. The converted DC power from a rectenna wakes up the system by activating a switch connected to a battery and the receiver. When there is no interrogation, a switch becomes off. An output voltage is twice increased by a voltage doubler and added up by connecting in series. The 2nd and 3rd harmonic rejection characteristic of a circular sector antenna is introduced so that it makes the system simpler by eliminating a low-pass filter (LPF) in the rectenna. For the phase-conjugation retrodirective array, 2nd sub-harmonic mixers are used by employing anti-parallel diode pairs (APDP's), which enables to avoid the expensive high frequency oscillators. It is experimentally demonstrated that the retrodirective array system with the proposed power management can retransmit the received signal toward the source when the received power density is over 0.057 mW/cm2•
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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 | 0.001 |
| 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) | 0.000 | 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".