Preliminary Circuit Analysis of a $W$ -Band High-Power Extended Interaction Oscillator With Distributed Hollow Electron Beam
- Resource Type
- Authors
- Ping Zhang; Hailong Li; Yong Yin; Sairong Zhu; Bin Wang; Ruibin Peng; Li Wenlong; Che Xu; Fanbo Zeng; Liangjie Bi; Lin Meng; Zhiwei Chang
- Source
- IEEE Transactions on Electron Devices. 66:3190-3195
- Subject
- 010302 applied physics
Physics
business.industry
01 natural sciences
Electronic, Optical and Magnetic Materials
Power (physics)
Magnetic field
Optics
W band
0103 physical sciences
Cathode ray
Radio frequency
Electrical and Electronic Engineering
business
Beam (structure)
Network analysis
Electron gun
- Language
- ISSN
- 1557-9646
0018-9383
In this paper, the circuit synthesis concept is applied to support a novel extended interaction RF circuit for generating a high-power millimeter-wave radiation. Its novel configuration is constructed by parallel connecting multiple sheet-beam-extended interaction cavities arranged along the angular direction to form a distributed hollow electron beam (HEB) as a whole. The specific concept endows the proposed circuit features such as: 1) making the diameter of HEB flexible and hence extending the space to set more single-sheet beam cavity in angular direction for increasing power capacity and 2) offering the opportunity to adopt a mutual magnetic focusing system for the distributed HEB, which is critical for the feasibility of the circuit synthesis. The circuit analysis is carried out, and a ${W}$ -band extended interaction oscillator (EIO) based on this concept is proposed to preliminarily demonstrate the capability of circuit synthesis. The distributed HEB is produced with an immersed electron gun using a 0.8 T focusing magnetic field. Simulations using 3-D particle-in-cell (PIC) technology in Computer Simulation Technology (CST) predict a peak output power up to 10.0 kW around 103 GHz with the beam current of 4.2 A at 27 kV.