High-Efficiency Study of an SBEIO Based on the SAA Optimization

Li, Xiaoxiao; Wu, Zewei; Luo, Yong; Liao, Shaowei; Wang, Jianxun; Gao, Junliang; Liu, Zeng; Rui, Lingshan; Wang, Yangfan; Jiang, Wei

doi:10.1109/ted.2019.2941147

Cited by 9 publications

(2 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…23 Currently, various highorder mode structures and innovative structures designed by combining multi-beam and sheet-beam have been widely studied. [24][25][26][27][28][29][30] Multi-beam technology and coaxial structure have been widely used in conventional high-power klystrons. 31 When maintaining the same current density as the traditional single beam, multiple beams can provide a larger total current for the high-frequency structure in a large cross-sectional area.…”

Section: Introductionmentioning

confidence: 99%

A Highly Overmoded Structure for Hundred-Kilowatt-Class Ka-Band Extended Interaction Klystron

Zu,

Yuan,

et al. 2023

IEEE Trans. Electron Devices

View full text Add to dashboard Cite

For most of the applications in the millimeter wave band, corresponding to Ka and higher-frequency bands, the relatively high atmospheric absorption necessitates the use of high-power sources. Here, a new approach for projecting an oversized beam tunnel in an overmoded structure by concentrating the axial field is demonstrated to meet the high-frequency and high-power demands of compact devices. Due to the enhanced high-current intense beam loading capability of the interaction circuit, a six-cavity Ka-band extended interaction klystron (EIK) with a four-coupling-hole disk-loaded structure is designed that can stably obtain high output power. An analysis of optimization trade-offs from introducing high order modes for allowing the application of more powerful beams to improving high order modes field distribution for enhancing the electron-wave coupling and suppressing mode competition is reported. 3-D particle in cell (PIC) simulations show that such new design approaches can achieve an output power of 1.11 MW at 32.94 GHz with a saturated gain of 57 dB by injecting a 3.3 mm diameter electron beam with a current of 24 A.

show abstract

Section: Introductionmentioning

confidence: 99%

A Highly Overmoded Structure for Hundred-Kilowatt-Class Ka-Band Extended Interaction Klystron

Zu,

Yuan,

et al. 2023

IEEE Trans. Electron Devices

View full text Add to dashboard Cite

show abstract

“…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%

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

Wang

Wan

et al. 2021

IEEE Electron Device Lett.

Self Cite

View full text Add to dashboard Cite

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.

show abstract

Efficiency Enhancement of a Millimeter-Wave, Two-Beam Extended Interaction Oscillator Based on All-Period Field Optimization

Jiang,

Bi,

et al. 2023

J Infrared Milli Terahz Waves

View full text Add to dashboard Cite

High-Efficiency Study of an SBEIO Based on the SAA Optimization

Cited by 9 publications

References 17 publications

A Highly Overmoded Structure for Hundred-Kilowatt-Class Ka-Band Extended Interaction Klystron

A Highly Overmoded Structure for Hundred-Kilowatt-Class Ka-Band Extended Interaction Klystron

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

Efficiency Enhancement of a Millimeter-Wave, Two-Beam Extended Interaction Oscillator Based on All-Period Field Optimization

Contact Info

Product

Resources

About