Hao Li

A Low‐Loss Compact Monopulse Antenna Based on Substrate‐Integrated Suspended Line

Cheng Fu, Jianing Zhao, Hongyu Dai, Ruoyang Yang et autres

ABSTRACT A low‐loss compact substrate integrated suspended line (SISL) monopulse antenna is proposed in this paper. A monopulse comparator and a symmetric antenna array are implemented in a multilayer SISL air‐cavity to minimize dielectric and radiation losses while providing strong field confinement …

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Numerical analysis of axial-radial segregation dynamics in an indented cylinder separator with high length-to-diameter ratio

Xinlei Wang, Tianyi Wang, Hao Li, Dan Zhao et autres

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Rectangular YIG Iris-Loaded Waveguide Integrated Device for Filtering and Limiting in High-Power Microwave Environment

Huan Yan, Cheng Zhang, Haiyang Wang, Mingyu Yang et autres

This work presents a waveguide device that integrates bandpass filtering with power limiting. A waveguide resonator was capacitively loaded with the high-permittivity yttrium iron garnet (YIG) iris, which preserved the desired bandpass response while yielding 70-dB stopband attenuation for frequency-domain protection. Under …

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P- and S-Wave Poynting Vectors Derived from the Divergence and Curl Mode Separation for Elastic Wave Reverse Time Migration

Nan Hu, Ming Cai, Yunsheng Zhao, Hao Li et autres

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Terahertz Quasi-Optical Broadband Monopulse Feed Network Technology

Biao Hu, Hao Li, Haiyang Wang, Tianming Li et autres

The quasi-optical transmission is a guided wave technology with the intrinsic property of low insertion loss and high-power capacity, which provides a promising solution for mono-pulse technology in the terahertz frequency band. In this work, a compact broadband low insertion loss quasi-optical …

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A Compact and Lightweight Relativistic Magnetron With Permanent Magnets

Renjie Cheng, Jiaoyin Wang, Yanlin Deng, Tingxu Chen et autres

A novel S-band lightweight relativistic magnetron, packaged with permanent magnets and equipped with a compact axial extraction structure, is proposed. In this design, five alternately arranged anode vanes in a 10-cavity rising-sun magnetron are connected via a ring-like structure to enhance the …

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An Ultrathin Filtering Transmitarray Antenna Based on Machine-Learning-Enabled Phase Synthesis

Ruoyang Yang, Jianing Zhao, Hao Li, Tianming Li et autres

A machine-learning (ML)-enabled phase synthesis method is proposed in this letter to optimize filtering transmitarray antennas (TAs). First, a single-layer filtering TA element is proposed which not only offers a sufficient phase-shift range and low transmission loss, but also exhibits high selectivity, …

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A High-Power TE011-Mode Filter With Nonsinusoidal Deformed Cross-Sectional Cylindrical Cavity

Huan Zou, Haiyang Wang, Mingyu Yang, Hao Li et autres

A high-power handling TE011-mode filter for high-power microwave (HPM) incoherent synthesis is proposed in this letter. Based on the waveguide boundary perturbation principle, the filter utilizes TE011-mode resonators with nonsinusoidal deformed cross section, enabling effective separation of the TE011mode from its degenerate …

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Author response for "Tunable microwave absorbers: divalent ion-doped soft magnetic ferrite/CNT composites with customizable electromagnetic properties"

Zhihao Geng, Yujie Yang, Hao Li, Zhenyu Zhang et autres

Stack-based Ensemble Learning for Performance Indirect Testing of Analog Integrated Circuits

Jiawei Cao, Houjun Wang, Zhigang Wang, Hao Li

Performance testing of analog integrated circuits (ICs) is essential before deployment and real-world use. The conventional method for testing ICs’ specifications relied on complex test circuits and diverse stimuli with high time and hardware costs. To reduce costs, we propose a two-stage …

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Investigation of a Low-Loss Transmission Structure for W-Band TWT

Zhiyu Chen, Jingrui Duan, Yuan Zheng, Hao Li et autres

A low-loss transmission structure forW-band traveling wave tube (TWT) is proposed in this article. It converts the rectangular waveguide fundamental TE10mode into the corrugate waveguide HE11mode with a quasi-Gaussian energy distribution, thereby reducing ohmic loss on the waveguide walls. The sections maintaining …

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Theoretical and Experimental Investigations of a 90° Bend Based on Nonradiative Dielectric Waveguide

Meiling Ou, Dagang Liu, Haiyang Wang, Tianming Li et autres

Nonradiative dielectric (NRD) waveguides are recognized as suitable transmission lines for millimeter-wave applications, as they are planarized and of low loss. However, since the mode with the lowest loss is not the mode with the lowest cutoff frequency, NRD waveguides are often …

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