Investigation of an NEA Diamond Vacuum Microtriode Array

1996 ◽  
Vol 423 ◽  
Author(s):  
C. W. Hatfield ◽  
G. L. Bilbro ◽  
A. S. Morris ◽  
P. K. Baumann ◽  
B. L. Ward ◽  
...  
Keyword(s):  
Space Charge ◽  
Applied Voltage ◽  
Circuit Simulation ◽  
Emission Current ◽  
Microwave Circuit ◽  
Electron Optics ◽  
Electrical Measurements ◽  
Simulation Data ◽  
Diamond Surfaces ◽  
Rf Amplifier

AbstractThe properties and characteristics of vacuum microtriodes based on NEA diamond surfaces were modelled. Specifically, an NEA diamond vacuum microtriode array was investigated using electrical measurements, electron optics software, and microwave circuit simulation. Data for emission current versus applied voltage for various anode-to-cathode distances for diamond NEA surfaces was analyzed and various parameters were extracted. Electron optics software was used to determine Fowler-Nordheim and space-charge-limited DC I-V characteristics for each microtriode. Microwave circuit simulation was done to determine the behavior of arrays of these vacuum microtriodes in an RF amplifier circuit.

Effect of space charge on vacuum pre-breakdown voltage and electron emission current

2021 ◽  
Vol 129 (15) ◽  
pp. 155102
Author(s):  
B. Seznec ◽  
Ph. Dessante ◽  
Ph. Teste ◽  
T. Minea
Keyword(s):  
Space Charge ◽  
Breakdown Voltage ◽  
Electron Emission ◽  
Emission Current

scholarly journals Overcoming the Realization Problems of Wideband Matching Circuits

2018 ◽  
pp. 31-36
Author(s):  
Balázs Matolcsy ◽  
Attila Zólomy
Keyword(s):  
Design Process ◽  
Circuit Simulation ◽  
Impedance Matching ◽  
Microwave Circuit ◽  
Design Rules ◽  
Analytical Design ◽  
Calculation Technique ◽  
Matching Networks ◽  
Practical Design

During the analytical design process of wideband impedance matching major problems may arise, that might lead to non-realizable matching networks, preventing the successful impedance matching. In this paper two practical design rules and a simplified equation is presented, supporting the design of physically realizable impedance matching networks. The design rules and calculation technique introduced by this paper is summarized, and validated by microwave circuit simulation examples.

Pt–Cu2O–Cu single-carrier space-charge-limited diodes

1977 ◽  
Vol 55 (7-8) ◽  
pp. 735-741 ◽  
Author(s):  
F. L. Weichman ◽  
K. T. Chee
Keyword(s):  
Single Crystal ◽  
Space Charge ◽  
Applied Voltage ◽  
Conduction Mechanism ◽  
Localized States ◽  
Current Response ◽  
Valence Band Edge ◽  
Single Carrier ◽  
Carrier Space ◽  
Space Charge Limited

This paper reports on the experimental results on the characteristics of the single-crystal Cu2O diodes, annealed at a pressure of 10−6 Torr at a temperature of 800 °C. In contrast to our previous report on oxidized samples which showed the characteristics of double injection diodes, these diodes exhibit the characteristics of single-carrier space-charge-limited (SCL) conduction. The conduction mechanism was confirmed by measurements on the I–V characteristics at various temperatures, the thickness vs. current relation at a given voltage, the effect of photomemory on the I–V characteristics, and the transient current response to applied voltage steps. The results also indicate that there are continuous levels of localized states in these samples in the range 0.06 eV to 0.47 eV above the valence band edge.

Solution of electron optics problems with space charge in 2D and 3D

1995 ◽  
Author(s):  
John A. Rouse ◽  
Xieqing Zhu ◽  
Eric Munro
Keyword(s):  
Space Charge ◽  
Electron Optics ◽  
2D And 3D
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