Development of a Phase-Controlled Magnetron Using Gate Field Emission Arrays
College of Engineering
Electrical and Computer Engineering
Jim Browning and Don Plumlee
Gated Field Emission Arrays (GFEAs) emit electrons when a sufficient threshold voltage is reached. One application of GFEAs is the synchronization of multiple magnetrons to achieve a higher total power output through phase-locking. An experimental setup using GFEAs attempted to achieve an electron emission similar to that in a commercial cooker magnetron. A testing process has been developed to characterize GFEA die to determine whether each die is viable. A phosphor screen was used in a test chamber to study emission current density and uniformity of the GFEAs. Both emission current and leakage current were measured for I-V characterization of the die. Future work will be focused on assembling a cathode with 30 GFEAs to demonstrate the phase-locking of a magnetron.
Lu, Tonglin; Harper, Ryan; Pearlman, Marcus; Yue, Andy; Saldivar, Steven; Berntsen, Tiffany; Longmuir, Stephen; and Betancourt, Omar, "Development of a Phase-Controlled Magnetron Using Gate Field Emission Arrays" (2018). 2018 Undergraduate Research and Scholarship Conference. 44.