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| 1 | Integrated multi-scheme digital modulations of spoof surface plasmon polaritons显示文摘The future wireless communications require different kinds of modulation functions to be integrated in a single intelligent device under different scenarios.Here,we propose a multi-scheme digital modulator to achieve this goal based on integrated spoof surface plasmon polaritons(SPP)in different frequency bands.By constructing switchable spoof SPP units,the propagating wave in the proposed spoof SPP waveguide can be manipulated in amplitude domain,frequency domain,and phase domain.As a proof of concept,the integrated multi-scheme digital modulator is experimentally verified to achieve at least three kinds of modulations,including amplitude shift keying,phase shift keying,and frequency shift keying,in a single digital spoof plasmonic waveguide.The simulated and measured results show that the modulator has excellent property of field confinement and is capable of frequency-domain modulation.Hence,the multi-scheme modulation property makes the proposed SPP digital modulator be an effective and reliable candidate for efficient manipulations of SPP waves and for advanced modulation technology. | Lepeng ZHANG Haochi ZHANG Min TANG Peihang HE Lingyun NIU Liangliang LIU Jiayuan LU Wenxuan TANG Junfa MAO Tiejun CUI | 2020 | Science China(Information Sciences)2020，63，10： | 2 |
| 2 | A Koch-like sided fractal bow-tie di- pole antenna 显示文摘 | Li Daotie Mao Junfa | 2012 | IEEE Transactions on Antennas and Propagation2012，60，5： | 1 |
| 3 | On the numerical stability of the precise integration time-do- main (PITD) method显示文摘 | JIANG Lele CHEN Zhizhang MAO Junfa | 2007 | IEEE Microwave and Wireless Components Letters2007，17，7： | 1 |
| 4 | Microstrip Patch Antenna Array on Ground with Circular EBG显示文摘 | Zhang Wenmei Mao Junfa Xiaowe | 2004 | Microwave and Optical Technology Letters2004，41，2： | 1 |
| 5 | A New Compact 1D PBG Microstrip Structure with Wider Stopband Based on Semiconductor Substrate显示文摘 | Zhang Wenmei Sun Xiaowei Mao Junfa | 2003 | Microwave Opt Technol Lett2003，39，2： | 1 |
| 6 | A precise time--step inte- gration method for transient analysis of lossy nonuni- form transmission lines显示文摘 | TANG Min MAO Junfa | 2008 | IEEE Transactions on E- lectromagnetic Compatibility2008，50，1： | 1 |
| 7 | Thermal transient response of GaAs FETs under intentional electromagnetic interference (IE- MI)显示文摘 | Xu Jianfeng Yin Wenyan Mao Junfa | 2008 | IEEE Trans on Electromagn Compat2008，50，2： | 1 |
| 8 | Analysis of the time response of nonuniform multiconductor transmission lines with a method of equivalent cascaded network chain显示文摘 | Mao Junfa Li Zhengfan | 1992 | IEEE Transactions on Microwave Theory and Techniques1992，40，5： | 1 |
| 9 | An Efficient Intra-Frame Rate Control Algorithm for H.264/AVC Video Coding显示文摘Intra-frame plays a significant role in improving video quality for rate control of H.264/AVC.In this paper,an efficient intra-frame rate control algorithm is proposed for H.264/AVC video coding.The proposed scheme adjusts the quantization parameter (QP) of intra-frame adaptively according to intra-frame buffer fullness ratio,current buffer fullness ratio,and skipped frame ratio.Experimental results demonstrate that for a set of typical testing sequences,the proposed scheme can obtain accurate target bit rate,better peak signal-to-noise ratio (PSNR) performance and reduce the number of skipped frames significantly,when compared with existing schemes.More importantly,the proposed scheme is very flexible for different initial QPs and target bits. | ZHAO Dandan ZHOU Yujie WANG Dayong MAO Junfa | 2012 | Wuhan University Journal of Natural Sciences2012，17，3： | 1 |
| 10 | Koch - like sided fractal bow - tie dipole antenna 显示文摘 | LI Daotie MAO Junfa | 2012 | IEEE Transactions on Antennas and Propagation2012，60，5： | 1 |
| 11 | Power Noise Suppression Using Power-and-Ground Via Pairs in Multilayered Printed Circuit Boards 显示文摘 | Zhang Mushui Mao Junfa Long Yunliang | 2011 | IEEE Transactions on Components Packaging and Manufacturing Technology2011，1，3： | 1 |
| 12 | Ultra-Sideband Suppression of SSN Using Localized Topology with Csrrs and Embedded Capacitance in High-Speed Circuits显示文摘 | ZHU Haoran LI Jianjie MAO Junfa | 2013 | IEEE Transactions on Microwave Theory and Techniques2013，61，2： | 1 |
| 13 | Accurate analysis of interconnect trees with distributed RLC model and moment matching 显示文摘 | LI Xiaochun MAO Junfa HUANG Huifen | 2004 | IEEE Trans on Microwave Theory and Techniques2004，52，9： | 1 |
| 14 | Analysis of the time response of nonuniform multiconductor transmission lines with a method of equivalent cascaded network chain 显示文摘 | MAO Junfa LI Zhengfan | 1992 | IEEE Trans on Microwave Theory and Techniques1992，40，5： | 1 |
| 15 | Evaluation Model and Method of Margin in Electromagnetic Environmental Effects for Complex Systems显示文摘Margin is an important index in the control of Electromagnetic environmental effects(E3) and Electromagnetic compatibility(EMC) design for systems.How to define and verify the E3 margins of complex systems such as ships and airplanes is a difficult problem.A new method of system-level E3 margin evaluation is proposed. Based on the theory of fault tree, the evaluation model of system-level margin is constructed.The complex system function is transformed into the equipment and subsystem that affect the function, and the relationship between margin of system-level and equipment is established. The change from margin of equipment to system-level margin is realized. According to the action process of Electromagnetic environment(EME), the verification and evaluation methods of EME domain, response domain and effect domain are put forward. The margin calculation formula of EME domain and typical electromagnetic energy coupling response are deduced. The problem of margin evaluation for equipment under different input parameters is solved. A typical application example is given. The verification test scheme is designed. The methods of electromagnetic energy radiation and injection are adopted. The system-level margin is analyzed by the data obtained from the effective test verification. The results show that the model and method are reasonable and feasible. | TANG Shiping MAO Junfa | 2021 | Chinese Journal of Electronics2021，30，1： | 0 |
| 16 | Analytical delay models for RLC interconnects under ramp input显示文摘Analytical delay models for Resistance Inductance Capacitance(RLC)interconnects with ramp input are presented for different situations,which include overdamped,underdamped and critical response cases.The errors of delay estimation using the analytical models proposed in this paper are less by 3%in comparison to the SPICE-computed delay.These models are meaningful for the delay analysis of actual circuits in which the input signal is ramp but not ideal step input. | REN Yinglei MAO Junfa LI Xiaochun | 2007 | Frontiers of Electrical and Electronic Engineering in China2007，2，1： | 0 |
| 17 | Low-loss wide-bandwidth planar transmission line with a laminated conductor显示文摘In this paper,the laminated conductor technology is first introduced to planar-integrated transmission lines.The laminated conductor is composed of multilayers of metal and insulator,which has a lower conductor loss than a solid conductor.Based on the silicon-based micro electromechanical system technology,a laminated coplanar waveguide(CPW)with wide bandwidth and low loss is proposed,which uses a laminated conductor for signal lines and grounds.A laminated CPW and its transition are designed,fabricated,and measured.The simulation results show that the laminated CPW with many insulator layers has a low conductor loss.The measurement results illustrate that the average insertion loss of the laminated CPW is0.65 d B from DC to 40 GHz,which is 44.4%smaller than that of the solid CPW. | Ken NING Xiao-Chun LI Yan SHAO Junfa MAO | 2023 | Science China(Information Sciences)2023，66，5： | 0 |
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