Title :
Recent Advances in Millimeter Wave Power Modules (MMPMs)
Author :
Taylor, J. ; Schoemehl, T. ; Kennedy, J. ; Colombo, C. ; True, R. ; Watkins, R. ; Hargreaves, T.
Author_Institution :
L-3 Commun. Electron Devices
Abstract :
This abstract describes ongoing work at L-3 Communications Electron Devices on the development of high performance millimeter wave power modules (MMPMs). Operation of a 60 watt Q-band MPM TWT is described followed by recent results on the operation of a linearized Ka-band MPM, combining a MPM and predistortion linearizer. These small, lightweight, robust millimeter-wave MPMs are well-suited for use in mobile and man-portable data link and Mil-Satcom communication terminals. The Q-band MMPM is capable of delivering 60 watts of CW power from 43 GHz to 46 GHz. The measured output power of the vacuum power booster TWT is shown. The small signal gain at mid-band is 45 dB. The Q-band TWT operates at a cathode voltage of 7.7 kV and a cathode current of 110 mA. A conduction-cooled three-stage collector provides an overall TWT efficiency of 33%. When integrated into an MMPM, the unit measures 8.5" times 7.5" times 1.25" and weigh around 5 lbs
Keywords :
millimetre wave tubes; modules; travelling wave tubes; vacuum tubes; 110 mA; 43 to 46 GHz; 45 dB; 60 W; 7.7 kV; Ka-band MPM; MMPM; Mil-Satcom communication terminals; Q-band MPM TWT; Q-band TWT; cathode current; cathode voltage; man-portable data link; millimeter wave power modules; millimeter-wave MPM; predistortion linearizer; three-stage collector; vacuum power booster TWT; Cathodes; Electron devices; Millimeter wave communication; Millimeter wave devices; Millimeter wave measurements; Mobile communication; Multichip modules; Power measurement; Predistortion; Robustness;
Conference_Titel :
Vacuum Electronics Conference, 2006 held Jointly with 2006 IEEE International Vacuum Electron Sources., IEEE International
Conference_Location :
Monterey, CA
Print_ISBN :
1-4244-0108-9
DOI :
10.1109/IVELEC.2006.1666354
