Research of a 0.14 THz Dual-Cavity Parallel Structure Extended Interaction Oscillator

Chuanhong Xiao; Ruizhe Ren; Zhenhua Wu; Yijun Li; Qing You; Zongjun Shi; Kaichun Zhang; Xiaoxing Chen; Mingzhou Zhan; Diwei Liu; Renbin Zhong; Shenggang Liu

doi:10.3390/s24185891

Sensors (Sep 2024)

Research of a 0.14 THz Dual-Cavity Parallel Structure Extended Interaction Oscillator

Chuanhong Xiao,
Ruizhe Ren,
Zhenhua Wu,
Yijun Li,
Qing You,
Zongjun Shi,
Kaichun Zhang,
Xiaoxing Chen,
Mingzhou Zhan,
Diwei Liu,
Renbin Zhong,
Shenggang Liu

Affiliations

Chuanhong Xiao: School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China
Ruizhe Ren: School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China
Zhenhua Wu: School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China
Yijun Li: State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute, Sichuan University, Chengdu 610041, China
Qing You: School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China
Zongjun Shi: School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China
Kaichun Zhang: School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China
Xiaoxing Chen: School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China
Mingzhou Zhan: School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China
Diwei Liu: School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China
Renbin Zhong: School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China
Shenggang Liu: School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China

DOI: https://doi.org/10.3390/s24185891
Journal volume & issue: Vol. 24, no. 18
p. 5891

Abstract

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This paper presents a method to enhance extended interaction oscillator (EIO) output power based on a dual-cavity parallel structure (DCPS). This stucture consists of two conventional ladder-line structures in parallel through a connecting structure, which improves the coupling efficiency between the cavities. The dual output power fusion structure employs an H-T type combiner as the output coupler, which can effectively combine the two input waves in phase to further increase the output power. The dispersion characteristics, coupling impedance, and field distribution of the DCPS are investigated through numerical and simulation calculations, and the optimal operating parameters and output structure are obtained by PIC simulation. At an operating voltage of 12.6 kV, current density of 200 A/cm2, and longitudinal magnetic field of 0.5 T, the DCPS EIO exhibits an output power exceeding 600 W at a frequency of 140.6 GHz. This represents a nearly three-fold enhancement compared with the 195 W output of the conventional ladder-line EIO structure. These findings demonstrate the significant improvement in output power and interaction efficiency achieved by the DCPS for the EIO device.

Published in Sensors

ISSN: 1424-8220 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Chemical technology
Website: http://www.mdpi.com/journal/sensors

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