Title :
Experimental Investigation of W-band Pierce Electron gun for LIGA-fabricated Millimeter-wave Vacuum Electron Devices
Author :
Srivastava, Anurag ; So, J.K. ; Shin, Y.M. ; Jang, K.H. ; Won, J.H. ; Park, Gwan Soo
Author_Institution :
Seoul Nat. Univ., Seoul
Abstract :
We report a thermionic Pierce electron gun, which has been designed, developed and experimentally tested for getting desired performance for W-band LIGA fabricated devices like folded waveguide backward-wave oscillator (FWBWO). This gun has used thermionic dispenser cathode of 1.6 mm button diameter with corresponding cathode emission loading around 2.5 A/cm2 . It is delivering 50 mA beam current at 12 kV beam voltage with 0.36 mm beam waist radius. The current density of beam is estimated at the beam waist position.
Keywords :
LIGA; backward wave oscillators; electron guns; millimetre wave tubes; thermionic cathodes; thermionic electron emission; vacuum microelectronics; LIGA-fabricated devices; W-band Pierce electron gun; current 50 mA; folded waveguide backward-wave oscillator; millimeter-wave vacuum electron devices; size 1.6 mm; thermionic dispenser cathode emission; voltage 12 kV; Cathodes; Circuits; Current density; Electromagnetic waveguides; Electron beams; Electron devices; Frequency; Lithography; Space technology; Voltage;
Conference_Titel :
Infrared Millimeter Waves and 14th International Conference on Teraherz Electronics, 2006. IRMMW-THz 2006. Joint 31st International Conference on
Conference_Location :
Shanghai
Print_ISBN :
1-4244-0400-2
Electronic_ISBN :
1-4244-0400-2
DOI :
10.1109/ICIMW.2006.368568
