Pengfei Wang

A Self-Sensing Radiation-Adaptive Flexible Antenna Array Enabled by Pattern-Scannable Elements and ResMLP Network

Qian Ren, Pengfei Wang, Yijiang Nan, Haitao Huang et autres

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Nominal Rigidities, Earnings Manipulation, and Securities Regulation

Erica X. N. Li, Pengfei Wang, Jin Xie, Ji Zhang

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A W-Band Improved Small-Signal Model for AlGaN/GaN HEMT

Minhan Mi, Ziyue Zhao, Pengfei Wang

At present, the application prospects of GaN HEMT is very broad, especially in the fields of communication, radar and others. The two-dimensional electron gas (2DEG) generated by the GaN HEMT due to heterojunction and the wide band gap advantage of GaN base …

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Influence of Gate Trench Length on Millimeter Wave Aigan/Gan Hemt

Xiangxin Cao, Minhan Mi, Pengfei Wang, Xiang Du et autres

To modulate the current and output capabilities of high-electron-mobility transistors (HEMTs), this study investigates a method by adjusting the length of the gate trench ($\mathrm{L}_{\mathrm{t}}$). We investigated GaN HEMTs with AIGaN barrier layer thicknesses of$4 ~\text{nm}, 6 ~\text{nm}$, and 12 nm. With …

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HDNRA: An R package for HDLSS location testing with normal-reference approaches

Pengfei Wang, Tianming Zhu, Jin-Ting Zhang

The challenge of location testing for high-dimensional data in statistical inference is notable. Existing literature suggests various methods, many of which impose strong regularity conditions on underlying covariance matrices to ensure asymptotic normal distribution of test statistics, leading to difficulties in size …

Scattering Beam Reconfigurable Circularly Polarized Antenna Array

Pengfei Wang, Ying Liu, Yongtao Jia

A circularly polarized antenna array with reconfigurable scattering patterns is proposed. The proposed antenna unit integrates four p-i-n diodes, enabling the unit to achieve two operational states by tuning the states of these diodes. Both states of the unit exhibit a 180° …

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Broadband Low-RCS Circularly Polarized Antenna Array With Reconfigurable Scattering Patterns

Pengfei Wang, Yongtao Jia, Wenyan Hu, Jiahao Zhang et autres

In this article, a broadband low radar cross section (RCS) circularly polarized (CP) antenna array with reconfigurable scattering patterns is proposed. The antenna array comprises 16 reconfigurable elements and a phase reconfigurable power divider. The antenna element can switch between two scattering …

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Nominal Rigidities, Earnings Manipulation, and Securities Regulation

Erica X. N. Li, Pengfei Wang, Jin Xiong Xie, Ji Zhang

Broadband and High-Temperature-Resistant Microwave Absorber Using Additively Manufactured Ceramic Substrate

Baihong Chi, Kuan Lu, Pengfei Wang, Mengzhu Li et autres

This paper presents an approach to achieve broadband absorption and temperature resistance using ceramic substrates. A specially formulated slurry suitable for additive manufacturing technology was developed to fabricate ceramic substrates with lattice structures. The lattice structure not only reduces the weight of …

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A Compact Wideband Dual-Polarized Dipole Antenna with High-Isolation

Pengfei Wang, HaiFu Zhang, Donghe Zhao, Xiaolong Xu

This paper presents a compact wideband dual-polarized dipole with high isolation. The proposed antenna makes use of two T-shaped orthogonal oscillators to realize the dual-polarization radiation. The wideband impedance matching is realized by the coaxial slotted balun. To reduce the size of …

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Low-RCS Banyan Tree Antenna Array With Reconfigurable Scattering Patterns

Pengfei Wang, Yongtao Jia, Zhaosong Liu, Ying Liu

A low-RCS Banyan Tree antenna (BTA) array featuring reconfigurable scattering performance is presented in this paper. The antenna unit is composed of a BTA element and a reconfigurable metasurface that is integrated with a p-i-n diode, enabling broadband reflection phase change. Importantly, …

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Circularly Polarized Polarization Conversion Metasurface-Inspired Antenna Array With Low RCS Over a Wide Band

Pengfei Wang, Yongtao Jia, Wenyan Hu, Ying Liu et autres

A circularly polarized (CP) metasurface-inspired antenna array with a low radar cross Section (RCS) over a wideband based on polarization conversion metasurface (PCM) is proposed. Without increasing the structural complexity, the PCM units serve directly as antenna radiators, which not only maintains …

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