A 0.35 THz Extended Interaction Oscillator based on Overmoded and Bi-Periodic Structure

Xu, Che and Meng, Lin and Paoloni, Claudio and Qin, Yu and Bin, Lianjie and Wang, Bin and Li, Hailong and Yin, Yong (2021) A 0.35 THz Extended Interaction Oscillator based on Overmoded and Bi-Periodic Structure. IEEE Transactions on Electron Devices, 68 (11). pp. 5814-5819. ISSN 0018-9383

[img]
Text (TED-2021-04-0933-R_Proof_hi)
TED_2021_04_0933_R_Proof_hi.pdf - Accepted Version
Available under License Creative Commons Attribution-NonCommercial.

Download (1MB)

Abstract

An improved topology of Extended interaction oscillators (EIO) is presented with enhanced efficiency at 0.35 THz. A bi-periodic ladder-type structure is used for optimizing the performance of the TM 31−2π mode operation, based on bi-periodic interaction gaps composed of staggered short and long slots. The bi-periodic interaction mechanism permits to operate the circuit with a standing-wave field between the π and 2π modes, thus providing the potential to combine the advantages of both π and 2π modes in terms of both coupling and output performance. The resulting transverse TM 31 operating mechanism exhibits a good agreement with the bi-periodic structure in terms of coupling performance, with the short slot length positively correlated with the value of effective characteristic impedance M2R/Q . The circuit demonstrates attractive coupling and output characteristics by optimization of M2R/Q and Qe . A state-of-the-art value M2R/Q of 59.69 Ω and a moderate Qe of 2523.52 are achieved for a proposed eight-period ladder-type EIO. An RF power of 540 W is obtained with a 42.5 kV, 0.6 A sheet beam, with 2.1% electronic efficiency at 0.35 THz.

Item Type:
Journal Article
Journal or Publication Title:
IEEE Transactions on Electron Devices
Additional Information:
©2021 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2200/2208
Subjects:
ID Code:
161740
Deposited By:
Deposited On:
01 Nov 2021 15:11
Refereed?:
Yes
Published?:
Published
Last Modified:
05 Dec 2021 08:28