English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The traveling-wave tube is a critical subsystem for satellite datatransmission. Its role in the history of wireless communications and in thespace conquest is significant, but largely ignored, even though the deviceremains widely used nowadays. This paper present, albeit non-exhaustively,circumstances and contexts that led to its invention, and its part in theworldwide (in particular in Europe) expansion of TV broadcasting via microwaveradio-relays and satellites. We also discuss its actual contribution to spaceapplications and its conception. The originality of this paper comes from thewide period covered (from first slow-wave structures in 1889 to present spaceprojects) and from connection points made between this device and commercialexploitations. The appendix deals with an intuitive pedagogical description ofthe wave-particle interaction.

The Traveling-Wave Tube in the History of Telecommunication