Traveling-Wave Amplification in a Circuit With Nonuniform Grating
The results of both numerical simulations and experimental study of the traveling-wave amplification in the <inline-formula> <tex-math notation="LaTeX">{W} </tex-math></inline-formula>-band circuit with the nonuniform grating are presented and discussed. The circuit...
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Published in | IEEE transactions on electron devices Vol. 68; no. 10; pp. 5232 - 5237 |
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Main Authors | , , , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
New York
IEEE
01.10.2021
The Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
Subjects | |
Online Access | Get full text |
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Summary: | The results of both numerical simulations and experimental study of the traveling-wave amplification in the <inline-formula> <tex-math notation="LaTeX">{W} </tex-math></inline-formula>-band circuit with the nonuniform grating are presented and discussed. The circuit supports a wide sheet electron beam that is promising for a signal gain increase in terahertz (THz) amplifiers. The small-signal gain up to 30 dB is predicted by the simulations of the two-section amplifier in the frequency range from 94 to 99 GHz. The experimental tests of the 14.3-mm input section, powered by a 3.8 kV, 100-mA sheet electron beam, revealed the linear gain of 12 dB and instantaneous bandwidth of 2 GHz. The full bandwidth of 5 GHz has been experimentally observed by adjusting the beam voltage from 3.6 to 4.1 kV. |
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ISSN: | 0018-9383 1557-9646 |
DOI: | 10.1109/TED.2021.3105951 |