Tag: microwave tubes
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Microwave Active Devices: Types, Features & Operation
Generally microwave devices can be categorized as either passive components or active components. We have already talked about microwave passive components in this other article. This article focuses on microwave active devices. They may be classified into two types: low-power solid-state devices and high-power vacuum tube devices. Communications involving the gigahertz bandwidths cannot employ conventional…
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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…