High-frequency vacuum electron devices

Feng, Jinjun and Gong, Yubin and Du, Chaohai and Cross, Adrian (2022) High-frequency vacuum electron devices. Electronics, 11 (5). 817. ISSN 2079-9292 (https://doi.org/10.3390/electronics11050817)

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Abstract

Vacuum electron devices at frequencies of millimeter waves and terahertz play highly important roles in the modern high-data rate and broadband communication system, high-resolution detection and imaging, medical diagnostics, magnetically confined nuclear fusion, etc. For the fast motion velocity of electrons in the vacuum medium, they have the advantages of high power and high efficiency, as well as compactness, compared with other present radiation sources, such as solid-state devices.