Tag: Radio Frequency (RF)
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Basics of Radio Frequency (RF) and Wireless Communication Systems
Radio frequency (RF) is any frequency within the electromagnetic spectrum associated with radio-wave propagation. When an RF current (input signal) is supplied to an antenna, an electromagnetic field is created that is then able to propagate through the space. RF field propagation technology is used in many wireless technologies like: 1. Remote Sensing: Telemetry Tracking…
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Microwave Tubes
It was discovered in 1939 that a toroidal cavity made of conductive material called a cavity resonator surrounding an electron beam of oscillating intensity could extract power from the beam without intercepting the beam itself. The oscillating electric and magnetic fields associated with the beam ‘’echoed’’ inside the cavity, in a manner similar to the…