J
Jun Xu
Researcher at University of Electronic Science and Technology of China
Publications - 87
Citations - 837
Jun Xu is an academic researcher from University of Electronic Science and Technology of China. The author has contributed to research in topics: Band-pass filter & Resonator. The author has an hindex of 12, co-authored 86 publications receiving 581 citations. Previous affiliations of Jun Xu include City University of Hong Kong.
Papers
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Journal ArticleDOI
A 3-D Printed Lightweight X-Band Waveguide Filter Based on Spherical Resonators
TL;DR: In this paper, a 5-band waveguide bandpass filter based on spherical resonators has been designed, and fabricated by 3-D printing, and a special topology has been proposed to relieve the impact of the first three higher order modes in the resonator and ultimately to achieve a good out-of-band rejection.
Journal ArticleDOI
A Lightweight 3-D Printed $X$ -Band Bandpass Filter Based on Spherical Dual-Mode Resonators
TL;DR: In this article, a 3D printed fourth-order cavity bandpass filter (BPF) with a 3% fractional bandwidth is presented, which was designed using two high- $Q$ spherical dual-mode cavity resonators and fabricated using a stereolithography-based 3D printing technique.
Journal ArticleDOI
Compact lowpass filter with wide stopband using stepped impedance hairpin units
Shuai Liu,Jun Xu,Z.Q. Xu +2 more
TL;DR: In this article, a microstrip lowpass filter with a wide stopband was proposed, which is composed of two stepped impedance hairpin units with one embedded in another, which can obtain two more transmission zeros and extend a wide stopping band.
Journal ArticleDOI
Propagation Properties of Terahertz Waves in a Time-Varying Dusty Plasma Slab Using FDTD
TL;DR: In this article, the complex dielectric permittivity of a dusty plasma, which contains an inhomogeneous electron density, charging response factor, and dust charging frequency caused by dust particles, is given to simulate the time-varying dusty plasma sheath.
Journal ArticleDOI
A 290–310 GHz Single Sideband Mixer With Integrated Waveguide Filters
Cheng Guo,Xiaobang Shang,Michael J. Lancaster,Jun Xu,Jeff Powell,Hui Wang,Kai Parow-Souchon,M. Henry,Colin Viegas,Byron Alderman,Peter G. Huggard +10 more
TL;DR: In this article, a Schottky diode-based subharmonic mixer with integrated, low loss, impedance matching waveguide cavity filters was designed for use in a 300 GHz communication system with a 20 GHz intermediate frequency band centred at 15 GHz.