A High-Power Sheet Beam Slow-Wave Structure of Traveling Wave Tubes

Wan, Yixin; Wang, Jianxun; Liu, Qiang; Li, Xinjie; Wu, Zewei; Luo, Yong

doi:10.1109/led.2021.3064598

Cited by 13 publications

(2 citation statements)

References 15 publications

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“…Although a reflection peak of −10 dB is displayed at 32 GHz due to assembly deviation, this can be resolved in the case of high precision requirements eventually. Meanwhile, the introduction of all-period phase velocity matching technology has extremely increased the electronic interaction efficiency [17].…”

Section: The Scheme and Experimental Detailsmentioning

confidence: 99%

“…The compact package and lightweight design are highly suitable for TWTs communication application. Based on a series of achievements obtained in the past few years on sheet beam devices (including extended interaction oscillator and TWT), related key components and technologies [16], [17], device-level SB-TWT is designed, processed and tested in UESTC. In this letter, a 3 kW CW SB-TWT with the 1-dB bandwidth of 6 GHz is reported.…”

Section: Introductionmentioning

confidence: 99%

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Continuous Wave Operation of a Ka-Band Broadband High-Power Sheet Beam Traveling-Wave Tube

Wang

Wan

et al. 2021

IEEE Electron Device Lett.

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To meet the need to transmit increasingly massive volumes of data, a more than 3 kW continuous wave (CW) Ka-band sheet beam traveling-wave tube (SB-TWT) is reported for the first time. Working under unsaturated drive, the maximum gain obtained is 29 dB with a sheet beam of 30.9 kV, 0.82 A, and the efficiency exceeds 24% with a single-stage collector depressed to −15 kV. The 1-dB bandwidth reaches 6 GHz from 26 GHz to 32 GHz and the bandwidth with output power greater than 2 kW can even reach 7GHz from 26 GHz to 33 GHz. The realization of 99.8% static transmission as well as over 97% actual CW transmission of sheet beam is verified successfully, which benefits from adopting periodic cusp magnet (PCM) focusing, and thereby total weight is less than 15 kg. The relevant experimental details are introduced in this letter.

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Section: The Scheme and Experimental Detailsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%