Development of a 50 Watt Q-band mini TWT

Author

Taylor, J. ; Kennedy, J. ; Marchewka, C. ; Barsanti, M. ; Colombo, C. ; True, R. ; Watkins, R.

Author_Institution

L-3 Commun., Electron Devices Div., San Carlos, CA, USA

fYear

2004

fDate

27-29 April 2004

Firstpage

94

Lastpage

95

Abstract

Summary form only given. L-3 Communications Electron Devices has demonstrated a 50 W PPM-focused mini TWT for use in a Q-band mm-wave power module (MMPM). The ultra-miniature size of the mini TWT, 1.4"×0.9"×6.5" is a result of the low voltage design of the TWT. This paper discusses the tube performance characteristics over a 2 GHz band at 44 GHz. The mm-wave mini-TWT is capable of delivering 50 W of CW power from 43 GHz to 46 GHz. The small signal gain at mid-band is 40 dB with the tube operated at a cathode voltage of 7.6 kV and a cathode current of 97 mA. A conduction-cooled two-stage collector provided a total efficiency of 22%.

Keywords

millimetre wave tubes; travelling wave tubes; 0.9 in; 1.4 in; 2 GHz; 22 percent; 40 dB; 43 to 46 GHz; 44 GHz; 50 W; 6.5 in; 7.6 kV; 97 mA; MMPM; PPM-focused TWT; Q-band TWT; conduction-cooled two-stage collector; low voltage operation; millimeter-wave power module; mm-wave mini-TWT; saturated power output; small signal gain; Anodes; Cathodes; Communication industry; Electrodes; Electron devices; Low voltage; Millimeter wave measurements; Millimeter wave technology; Multichip modules; Waveguide transitions;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electronics Conference, 2004. IVEC 2004. Fifth IEEE International

Print_ISBN

0-7803-8261-7

Type

conf

DOI

10.1109/IVELEC.2004.1316215

Filename

1316215