Broadening Bandwidth of Extended Interaction Klystron Through Nonperiodic Perturbations

被引：0

作者：

Guo, Naining ^{[1
,2
]}

Qu, Zhaowei ^{[3
]}

Xue, Qianzhong ^{[1
,2
]}

Liu, Kegang ^{[1
,2
]}

Song, Wenke ^{[1
,2
]}

Ding, Haibing ^{[3
]}

机构：

[1] Chinese Acad Sci, Aerosp Informat Res Inst, Beijing 100190, Peoples R China

[2] Univ Chinese Acad Sci, Sch Elect Elect & Commun Engn, Beijing 100408, Peoples R China

[3] Chinese Acad Sci, Aerosp Informat Res Inst, Beijing 100190, Peoples R China

来源：

IEEE TRANSACTIONS ON ELECTRON DEVICES | 2024年 / 71卷 / 05期

关键词：

Amplifier; extended interaction klystron (EIK); multimode operation; nonperiodic perturbations; wideband;

D O I：

10.1109/TED.2024.3383420

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Nonperiodic perturbations are incorporated into extended interaction klystron (EIK) to broaden the bandwidth, overcoming the dilemma of effective interaction between the beam and three or more axial resonances. The theoretical exploration delves into the impact of gap position perturbations on the periodic extended interaction cavity. Furthermore, application examples demonstrating multimode operation in nonperiodic cavities are presented and validated through comprehensive full-wave simulations. Subsequently, a seven-cavity interaction circuit of a G-band wideband EIK amplifier operating in 220 GHz is designed to further validate the nonperiodic design approach. The 3-D particle-in-cell (PIC) simulation predicts a constant 35-mW-drive bandwidth of 6.76 GHz and the corresponding maximum output power of 74 W for the designed power amplifier driven by a 20.6-kV, 0.25-A electron beam.

引用

页码：3232 / 3239

页数：8