Large‐signal theory of phase‐conjugate backscatterings

1979 ◽  
Vol 34 (12) ◽  
pp. 855-857 ◽  
Author(s):  
Hsiung Hsu
Keyword(s):  
Signal Theory ◽  
Large Signal ◽  
Phase Conjugate

scholarly journals A Large Signal Theory of Multiple Cascaded Bunching Cavities for High-Efficiency Triaxial Klystron Amplifier

Electronics ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 1284
Author(s):  
Fuxiang Yang ◽  
Fangchao Dang ◽  
Juntao He ◽  
Xiaoping Zhang ◽  
Jinchuan Ju
Keyword(s):  
Relativistic Electron ◽  
High Efficiency ◽  
Velocity Dispersion ◽  
Electron Beams ◽  
Signal Theory ◽  
Large Signal ◽  
Harmonic Current ◽  
Average Output ◽  
Relativistic Electron Beams ◽  
Ku Band

This paper presents a large signal theory of multiple cascaded bunching cavities for the design of high-efficiency triaxial klystron amplifiers (TKAs). The theoretical analysis of multiple cascaded bunching cavities is presented, focusing on the relationship between gap voltage and first harmonic current and velocity dispersion, which can exactly describe the clustering state of intense relativistic electron beams. The theoretical results of the first harmonic current and velocity dispersion are basically consistent with its simulation results, which can justify a high degree of confidence in the validity of that theory. This theory can predict the possibility of deep modulation of intense relativistic electron beams when the depth of the first harmonic current is about 150% by multiple cascaded bunching cavities. By properly accounting for this theory, we can design a Ku-band TKA with nearly 60% microwave conversion efficiency, which can provide theoretical and simulation guidance for the design of high-efficiency TKAs. More importantly, when we increase the electron beam voltage from 300 kV to 600 kV and keep the relativistic perveance constant, this device also can obtain more than 50% efficiency and 40 dB gain. As a result, we can design a Ku-band TKA with high average output power of about 1.5 GW, 52% efficiency and 46 dB gain.

Large-signal theory of UHF power triodes

1959 ◽  
Vol 6 (1) ◽  
pp. 35-47 ◽  
Author(s):  
A.D. Sutherland
Keyword(s):  
Signal Theory ◽  
Large Signal
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