Experimental Investigation of a High-Power Ka-Band Folded Waveguide Traveling-Wave Tube

A Ka-band traveling-wave tube (TWT) was fabricated with a folded waveguide (FWG) as its slow-wave structure. The TWT demonstrates more than 700-W radio-frequency peak output power within a 2.5-GHz bandwidth. Because this type of TWT can be manufactured and assembled in an easy and cheap way, the FWG...

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Veröffentlicht in:	IEEE transactions on electron devices 2011-07, Vol.58 (7), p.2159-2163
Hauptverfasser:	Gong, Huarong, Gong, Yubin, Tang, Tao, Xu, Jin, Wang, Weng-Xiang
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Bandwidth Couplers Devices Dispersion characteristic Electron tubes Electronic tubes, masers Electronics Exact sciences and technology folded waveguide (FWG) interaction impedance Joining Microwave measurements Microwave theory and techniques Millimeter waves Power generation Saturation magnetization slow-wave structure (SWS) Traveling wave tubes traveling-wave tube (TWT) Waveguides
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Beschreibung
Zusammenfassung:	A Ka-band traveling-wave tube (TWT) was fabricated with a folded waveguide (FWG) as its slow-wave structure. The TWT demonstrates more than 700-W radio-frequency peak output power within a 2.5-GHz bandwidth. Because this type of TWT can be manufactured and assembled in an easy and cheap way, the FWG TWT will be a competing high-power millimeter wave source, compared to helix and coupled-cavity TWTs in Ka-band.
ISSN:	0018-9383 1557-9646
DOI:	10.1109/TED.2011.2148119