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  1. Radio frequency - Wikipedia

    Radio frequency (RF) is the oscillation rate of an alternating electric current or voltage or of a magnetic, electric or electromagnetic field or mechanical system in the frequency [1] range …

  2. What Is RF and Why Do We Use It? | Introduction to RF ...

    “RF” refers to the use of electromagnetic radiation for transferring information between two circuits that have no direct electrical connection. Time-varying voltages and currents generate …

  3. RADIO FREQUENCY Definition & Meaning - Merriam-Webster

    Dec 10, 2025 · The meaning of RADIO FREQUENCY is any of the electromagnetic wave frequencies that lie in the range extending from below 3 kilohertz to about 300 gigahertz and …

  4. What is Radio Frequency (RF)? - OneSDR - Technology

    Oct 25, 2024 · RF energy is transmitted and received using antennas. When an electric current moves through an antenna, it creates electromagnetic waves that propagate through space.

  5. Radio-frequency engineering - Wikipedia

    To produce quality results, the RF engineer needs to have an in-depth knowledge of mathematics, physics and general electronics theory as well as specialized training in areas such as wave …

  6. Radio-frequency identification - Wikipedia

    Textile RFID tag for laundry with printed EPC and QR code. Radio-frequency identification (RFID) uses electromagnetic fields to automatically identify and track tags attached to objects. An …

  7. GitHub - roboflow/rf-detr: RF-DETR is a real-time object ...

    Apr 3, 2025 · RF-DETR is a real-time object detection and segmentation model architecture developed by Roboflow, SOTA on COCO and designed for fine-tuning. - roboflow/rf-detr