DESIGN OF A HIGH POWER, HIGH EFFICIENCY KA-BAND HELIX TRAVELING-WAVE TUBE | Zendy

Lu-Wei Liu | Zendy; Yanyu Wei | Zendy; Yabin Zhang | Zendy; Guoqing Zhao | Zendy; Zhaoyun Duan | Zendy; Wenxiang Wang | Zendy; Yubin Gong | Zendy; Minghua Yang | Zendy

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DESIGN OF A HIGH POWER, HIGH EFFICIENCY KA-BAND HELIX TRAVELING-WAVE TUBE

Author(s) -

Lu-Wei Liu,

Yanyu Wei,

Yabin Zhang,

Guoqing Zhao,

Zhaoyun Duan,

Wenxiang Wang,

Yubin Gong,

Minghua Yang

Publication year - 2013

Publication title -

progress in electromagnetics research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.245

H-Index - 33

ISSN - 1937-6480

DOI - 10.2528/pierl13070907

Subject(s) - traveling wave tube , ka band , tube (container) , traveling wave , power (physics) , helix (gastropod) , physics , electrical engineering , materials science , optics , optoelectronics , engineering , geology , mathematics , mathematical analysis , composite material , thermodynamics , paleontology , amplifier , cmos , snail

The design and analysis of a high power and high efficiency helix traveling-wave tube operating in the Ka-band are presented. First, a double-slotted helix slow-wave structure is proposed and employed in the interaction circuit. Then, negative phase-velocity tapering technology is used to improve electronic efficiency. From our calculations, when the design voltage and beam current are set to be 18.45 kV and 0.2 A, respectively, this tube can produce average output power over 800W ranging from 28 GHz to 31 GHz. The corresponding conversion e±ciency varies from 21.83% to 24.16%, and the maximum output power is 892W at 29 GHz.

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