{
    "title": "RF / Microwave Motors",
    "inventor_name": "Harry Stockman",
    "publication_year": null,
    "device_name": "RF / Microwave Motor",
    "goal": "Convert radio-frequency or microwave electromagnetic energy directly into mechanical motion.",
    "problem_addressed": "Need for wireless power transmission to drive motors without conventional electrical wiring.",
    "concept_summary": "The technology uses specially designed antennas, coils, and parametric resonant structures to capture RF or microwave energy and convert it into torque or linear force via electromagnetic induction, radiation pressure, or parametric excitation.",
    "detailed_description": null,
    "category": "Electromagnetism & Magnetism",
    "principles": [
        "Electromagnetic induction",
        "Parametric resonance",
        "Poynting vector radiation pressure",
        "Radiant energy conversion"
    ],
    "scientific_domains": [
        "Electrical Engineering",
        "Physics",
        "Electromagnetics"
    ],
    "mechanisms_of_action": [
        "Interaction of RF fields with conductive coils to produce torque",
        "Parametric excitation of resonant structures by alternating fields",
        "Radiation pressure from microwave energy on antenna elements"
    ],
    "materials": [
        "Copper wire",
        "Aluminum",
        "Dielectric ceramics",
        "Magnetic steel",
        "Antenna metal"
    ],
    "energy_sources": [
        "Radio-frequency electromagnetic radiation",
        "Microwave energy"
    ],
    "inputs": [
        "RF power signal",
        "Microwave carrier wave"
    ],
    "outputs": [
        "Mechanical rotation",
        "Linear motion"
    ],
    "claimed_performance": null,
    "experimental_evidence": null,
    "replication_status": null,
    "keywords": [
        "RF motor",
        "microwave motor",
        "wireless power",
        "parametric motor",
        "radiation pressure",
        "electromagnetic actuation"
    ],
    "related_technologies": [
        "RF actuators",
        "Microwave propulsion",
        "Parametric resonant devices"
    ],
    "controversy_level": "low",
    "confidence_score": 0.78,
    "practicability_score": 0.62,
    "fringe_score": 0.18,
    "evidence_strength": 0.28,
    "risk_score": 0.11,
    "trl_estimate": 5,
    "source_urls": [
        "http://ieeexplore.ieee.org/Xplore/login.jsp?url=/iel5/5/31066/01445336.pdf?isnumber=31066&prod=JNL&arnumber=1445336&arSt=+1380&ared=+1381&arAuthor=Garnier%2C+R.C.%3B+Ishii%2C+K.",
        "http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=1448878"
    ],
    "organizations": [
        "IEEE",
        "United States Patent and Trademark Office"
    ],
    "applications": [
        "Remote actuation of devices",
        "Spacecraft attitude control",
        "Industrial machinery without wiring"
    ],
    "limitations": [
        "Low conversion efficiency",
        "Requires high-power RF source",
        "Limited torque output"
    ],
    "open_questions": [
        "How to scale power for high-torque applications",
        "Optimization of material geometry for efficiency",
        "Long-term reliability of RF-driven moving parts"
    ],
    "red_flags": [],
    "evidence_quotes": []
}