Results 1 to 10 of about 64,092 (149)

A 3D Printed Ka-Band High-Efficiency Wide-Slit Antenna Array for High-Power Microwave Applications

International Journal of Antennas and Propagation, 2022
A Ka-band high-power waveguide wide-slit antenna array with high efficiency and high-power capacity is proposed in this paper. The antenna uses a waveguide vertical transition structure as a part of the feed network, which improves the compactness and ...
Liang Liu, Yu Yang, Shifeng Li, Xianghe Fang, Fanbao Meng, Chuan Yu   +5 more
doaj   +1 more source

Uncertainty Budget in Microwave High-Power Testing

IEEE Transactions on Instrumentation and Measurement, 2023
Martin Garcia-Patron [0000-0003-4534-7449] ; Manuel Rodriguez Higuero [0009-0006-0396-0607] ; Jorge A. Ruíz-Cruz [0000-0003-3909-8263]
Martín García-Patrón, Manuel Rodríguez, Jorge A. Ruiz-Cruz, Isabel Montero   +3 more
openaire   +3 more sources

Radial oscillation of intense relativistic electron beam in low-magnetic-field foil-less diode

AIP Advances, 2022
The radial oscillation of an intense relativistic electron beam possesses two main features of the spatial period and the radial oscillation amplitude in a low-magnetic-field foil-less diode, and the large radial oscillation extremely limits the beam ...
Guangshuai Zhang, Jun Sun, Ping Wu, Meng Zhu, Zhimin Song, Changhua Chen   +5 more
doaj   +1 more source

Efficiency Enhancement of a Klystron-Like Relativistic Backward Wave Oscillator With Waveguide Reflection and Bunching Promotion

IEEE Access, 2020
A klystron-like relativistic backward-wave oscillator (KL-RBWO) with transverse electron beam confinement and waveguide reflection, which works well under a magnetic-field strength below that of the cyclotron resonance, is proposed.
Huida Wang, Renzhen Xiao, Yanchao Shi, Guangshuai Zhang, Jun Sun, Changhua Chen, Wenhua Huang, Ruyu Fan   +7 more
doaj   +1 more source

Influence of SWS Size on Mode Purification in an Overmoded Ka-Band Cerenkov Oscillator

IEEE Access, 2020
Overmoded slow-wave structure (SWS) plays an important role in developing the performance of Cerenkov oscillators at the millimeter-wave range. To investigate the effect of SWS size on power capacity as well as the problem of mode competition, the ...
S. Li, Y. Teng, D. Y. Wang, W. B. Tan, D. W. Yang, X. Li, X. L. Wu   +6 more
doaj   +1 more source

A Substrate Integrated Waveguide-Based W-Band Antenna for Microwave Power Transmission

Micromachines, 2022
A W-band slot array antenna based on a substrate integrated waveguide (SIW) for microwave power transmission (MPT) is proposed in this paper. By size optimization, the transition from the rectifier element to the antenna is limited to a small size.
Liang Liu, Yu Yang, Chuan Yu, Shifeng Li, Hao Wu, Limin Sun, Fanbao Meng   +6 more
doaj   +1 more source

Influences of plasma on a relativistic backward wave oscillator with a resonant reflector and an extracting cavity

AIP Advances, 2020
Using the particle-in-cell method, the influences of the plasma produced in the resonant reflector and extracting cavity of an X-band relativistic backward oscillator are investigated.
Yuchuan Zhang, Xianchen Bai, Tianze Miao, Xiaowei Zhang, Yibing Cao   +4 more
doaj   +1 more source

Interference effects in GaN high electron mobility transistor power amplifier induced by microwave pulses

Scientific Reports, 2022
Owing to the rapid development of wireless communication, radar and pulse power technology, the electromagnetic environment faced by electronic systems is increasingly complex and the intensity of electromagnetic field can be significant.
Jingtao Zhao, Quanyou Chen, Chaoyang Chen, Zhidong Chen, Zhong Liu, Gang Zhao   +5 more
doaj   +1 more source

Impact of the structure on the thermal burnout effect induced by microwave pulses of PIN limiter diodes

Scientific Reports, 2022
Positive-intrinsic-negative (PIN) limiters are widely used to protect sensitive components from leakage power itself and adjacent high-power injection. Being the core of a PIN limiter, the PIN diode is possible to be burnt out by the external microwave ...
Jingtao Zhao, Quanyou Chen, Zhidong Chen, Chaoyang Chen, Zhenguo Zhao, Zhong Liu, Gang Zhao   +6 more
doaj   +1 more source

A megawatt-level surface wave oscillator in Y-band with large oversized structure driven by annular relativistic electron beam

Scientific Reports, 2018
High power vacuum electronic devices of millimeter wave to terahertz regime are attracting extensive interests due to their potential applications in science and technologies.
Jianguo Wang, Guangqiang Wang, Dongyang Wang, Shuang Li, Peng Zeng   +4 more
doaj   +1 more source