Biao Peng

Wuhan University

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i-10 index

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Co-Authors

Li Deng

Beijing University of Posts and Telecommunications

Jianfeng Zhu

South China University of Technology

Shufang Li

Beijing University of Posts and Telecommunications

Shufang Li

Tongji Hospital

C. Zhang

Zhengzhou University of Science and Technology

Jesse Zhu

Western University

Yue Gao

Fudan University

Botao Feng

Shenzhen University

Guangyu Liu

Yingkou Institute of Technology

Weijun Hong

Xi’an Jiaotong-Liverpool University

Cooperative Institutions

Chinese Academy of Sciences

Xi'an Jiaotong University

University of Chinese Academy of Sciences

Chang'an University

Beijing University of Posts and Telecommunications

Changchun Institute of Optics, Fine Mechanics and Physics

Huazhong University of Science and Technology

Shaanxi Provincial Land Engineering Construction Group

Tsinghua University

China University of Petroleum, Beijing

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A Compact Wideband Dual-Polarized Slot Antenna With Five Resonances

IEEE Antennas and Wireless Propagation Letters (2017)

Biao Peng Shufang Li Jianfeng Zhu Li Deng Yue Gao

This letter presents the design and analysis of a compact dual-polarized slot antenna using a triple-mode stepped slot-line resonator and a dual-mode cross-shaped monopole. The orthogonal polarization is achieved by feeding the two ports symmetrically at the opposite positions of the slot. All the five resonance frequencies can be flexibly adjusted by tuning different dimension parameters, so by increasing the frequency difference between the five resonance modes, a very wide common operating band (1.63-2.93 GHz) is obtained and also with a high port isolation (<; -32 dB). Finally, by loading two grounded lumped capacitors on the cusp sections of the monopole, its second resonance frequency can be independently reconfigured.

Wideband

Multi-band device

10.1109/lawp.2017.2718553

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Citations (15)

Effect Mechanism of Nutrients on Pathogenic Bacteria at The Sediment-Water Interface in Eutrophic Water

Research Square (Research Square) (2023)

Wen Sun Yang Zhang Biao Peng Jing Wang Yuansong Wei

Abstract Based on the target, the research analyses the structure of the microorganism group in sediment-water interface(SWI) and two typical pathogenic bacteria ( E. coli , Eateroconcus ) of gene expesion level,the relation between nutrients using the ways of modern biology.The distribution of nutrient content at the SWI mainly shows that the content in the sediment is significantly greater than that in the overlying water body. According to the calculation of the release flux according to Fick's first law, it is found that the PO 4 3- -P in the upper reaches of the reservoir is deposited from the overlying water. In addition to sedimentation, the release rate of NH 4 + -N was significantly greater than that of PO 4 3— P. The community structure was mainly dominated by three genera of Methyloparacoccus , Methylomonas and Arenimonas . Both E.coli and Enterococcus showed that the surface sediment was larger than the overlying water body. Pearson correlation analysis showed that E.coli had a significant positive correlation with TN (P < 0.05) and TP (P < 0.05) at the SWI, while Enterococcus had a significant positive correlation with TN (P < 0.01) and TP (P < 0.01) have a very significant positive correlation.

Sedimentation

Positive correlation

Water body

10.21203/rs.3.rs-3230457/v1

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Triple band-notched slot planar inverted cone antenna for UWB applications

2015 Asia-Pacific Microwave Conference (APMC) (2015)

Jianfeng Zhu Biao Peng Baotao Feng Li Deng Shufang Li

A novel triple band-notched slot planar inverted cone antenna (SPICA) is proposed for UWB applications. The unnotched ultrawideband antenna is composed of a cone shaped radiating patch and a wide circularly slot on the ground plane. To obtain anti-interference characteristics, an elliptical complementary split ring resonator (ECSRR) was etched in the radiating patch and a parasitic V shaped strip was added adjacent to the upper edges of the cone shaped patch. This will result in triple notched bands at WiMAX, WLAN and X band satellite communication downlinks. The results show the antenna has a wide impedance bandwidth of 140% for SWR <; 2 from 2.2 to 12 GHz with triple undesired bands (WiMAX, WLAN and X-band satellite communication downlinks) rejected. Other advantages, such as stable omnidirectional radiation patterns, easy fabrication as well as compact size make the design applicable to UWB applications.

Ground plane

WiMAX

Communications satellite

10.1109/apmc.2015.7411727

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Citations (6)

Triband filter with high design flexibility and wide stopband using DGS and shorted stub‐loaded resonator

Microwave and Optical Technology Letters (2015)

Biao Peng Shufang Li Bo Zhang Shuai Wang

ABSTRACT In this article, a novel triband bandpass filter with high design flexibility and wide stopband is designed by combining a shorted stub‐loaded resonator and two cross‐coupled DGS (defected ground structure) resonators [two RF (radio frequency) passages] with the same feeding structure. The three passbands can be flexibly designed not only because there is no cross‐coupling between the two passages but also because the harmonic passband can be easily eliminated just by embedding the feeding structure with open‐circuited stubs, while the performance of the three passbands remains the same. What's more, there are two transmission zeros beside each passband. A prototype filter with three passbands centered at 1.57, 3.45, and 5.28 GHz is designed and fabricated, and it behaves a wide upper stopband to about 9.6 GHz with rejection better than 20 dB. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:1226–1228, 2015

Stopband

Passband

Stub (electronics)

Elliptic filter

10.1002/mop.29067

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Citations (3)

A reconfigurable multiband CPW-fed antenna based on a quad-mode slot-line resonator

International Symposium on Antennas and Propagation (2016)

Biao Peng Shufang Li Ardavan Rahimian Qianyun Zhang Li Deng

This paper presents the design and realisation of a compact reconfigurable quad-/dual-band microwave antenna, which has been implemented based on a novel quad-mode slotline resonator (SLR). The coplanar waveguide (CPW) feeding structure has also been designed in detail in order to be able to optionally function under both the weakly-or strongly-coupling conditions. Under the weakly-coupling condition, the antenna has four narrow operating bands relating to the four resonant modes, while under the strongly-coupling condition, another resonance arises. As a result, a dual-band antenna is produced with a very wide second band. The fabricated antenna has then been thoroughly measured under both the intended conditions, which show good agreement with the conducted simulations.

Coplanar waveguide

Reconfigurable antenna

Multi-band device

Feed line

Source

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Structural Performance and Reasonable Cross-Ratio of Cross-Cable Multi-Tower Cable-Stayed Bridges

Buildings (2022)

Sisi Yao Biao Peng Luyao Wang Hengda Chen

The Queensferry Crossing in the UK is the first multi-tower cable-stayed bridge in the world to use mid-span cross-stayed cables to improve structural rigidity. To study the structural performance and economy of cross-cable multi-tower cable-stayed bridges, a total of 11 finite element models were established using two cross-cable setting methods. By changing the number of crossed cables in the mid-span, the variation laws of structural deformation and internal force are obtained. The cross-cable efficiency based on structural stiffness and the cross-cable economy based on the consumption of cables used in the entire bridge are quantitatively analyzed, and it is considered that there is a reasonable cross-ratio of cross-cables. Combined with the current design specification and the empirical data of the actual bridge, the limits of the double indicators were determined, and a scheme comparison chart was formed. The results show that under the action of unbalanced load, the cross cable can greatly reduce deformation and balance the internal force of the structure. The optimal solution is to form a mid-span cable crossing by adjusting the cable spacing, and the reasonable range of cross-ratio is 15%~35%. If the structural stiffness is improved by adding additional cross cables, the cross-ratio should be controlled within 16% to ensure structural economy. This provides a reference for the design and research of cross-cable multi-tower cable-stayed bridges in the future.

Rigidity (electromagnetism)

Structural rigidity

10.3390/buildings12060764

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Citations (5)

CPW-fed dual-/tri-band slot antenna based on multi-mode slot line resonator

Biao Peng Shufang Li Qianyun Zhang Yue Gao Jianfeng Zhu

In this paper, a dual-band CPW-fed antenna is designed with wide bandwith (BW) tunability. By using the odd-/even-mode theory, the resonant characteristics of the radiating element is vividly analyzed based on equivalent circuit models and design curves. There are four resonances, the 1 ^st of which performs as a parasitic resonance. The 2 ^nd resonance produces the first operating band while the 3 ^rd and 4 ^th resonances construct the second band. By spliting the second operating band into two narrow bands, a tri-band antenna can be produced. The fabricated dual-band antenna works at 2.39 GHz and 5.26 GHz with BW of 14.9 % and 23.5 %, respectively. The mid-band reflection coefficient in each band is better than - 18 dB.

Multi-band device

X band

10.1109/aps.2016.7695811

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Citations (1)

Coupled‐fed tri‐band MIMO mobile antenna for WWAN and LTE applications

Microwave and Optical Technology Letters (2016)

Jianfeng Zhu Botao Feng Li Deng Biao Peng Shufang Li

ABSTRACT In this paper, a coupled‐fed tri‐band multiple‐input‐multiple‐output (MIMO) mobile antenna is proposed for WWAN and LTE applications. The MIMO antenna system is composed of two antenna elements and they are oriented diagonally at the non‐grounded portion of the FR‐4 substrate. Each antenna element consists of a planar inverted‐F antenna (PIFA) coupled‐fed by a L‐shaped driven strip monopole. By adding a parallel‐resonant spiral slit in the main ground, the bandwidth of the lower band can be enhanced to cover the whole GSM850 and GSM900 bands without increasing the antenna size. Slits embedded on the ground are employed to enhance port isolation between the antenna elements. The proposed antenna provides triple bands including the lower band of 810–965 MHz, middle band of 1560–3320 MHz, and upper band of 3400–3590 MHz for WWAN and LTE applications. Detailed geometry and working mechanisms of the antenna are presented. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:463–468, 2017

10.1002/mop.30323

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Citations (10)

Compact CPW UWB diversity slot antenna with dual band‐notched characteristics

Microwave and Optical Technology Letters (2016)

Jianfeng Zhu Botao Feng Biao Peng Shufang Li Li Deng

ABSTRACT A compact coplanar waveguide (CPW) fed ultrawideband (UWB) slot antenna for multiple‐input‐multiple‐output (MIMO)/diversity applications is presented in this letter. The antenna consists of two coplanar waveguides (CPWs) feeding circular radiating elements and a protruded stub, which is placed at between them. The circular radiating elements are arrange orthogonally and fed perpendicularly to obtain polarization diversity. Notched band at X‐band communication downlinks is achieved by etching split ring resonator slots in the radiators and the other notched band at WLAN system is achieved by the collaboration of arc‐shaped strips and the protruded stub. The protruded stub not only can help to achieve band rejection but also can reduce mutual coupling between two ports. As all of the structures are printed in one layer, it can be very easily to be integrated with RF front‐end circuits. Simulated and measured results show that the proposed antenna meets the 10‐dB impedance bandwidth from 3.4 to 12 GHz and isolation better than 15 dB at most of the band. Good diversity performance in terms of envelope correlation coefficient and the ratio of mean effective gain demonstrates that the antenna is quite suitable for MIMO UWB applications. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:989–994, 2016

Stub (electronics)

Coplanar waveguide

Multi-band device

10.1002/mop.29714

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Citations (31)

In-door laboratory high-speed testing of tire-pavement noise

International Journal of Pavement Engineering (2020)

Sen Han Biao Peng L. Chu T. F. Fwa

The ability to measure traffic-speed tire-pavement noise in the laboratory is useful for predicting the tire-pavement noise performance of a design mix without conducting expensive and time-consuming field trials. This research developed an in-door high-speed test facility HTP2 for tire-pavement noise measurements. Housed in a semi-anechoic room, HTP2 has a circular test track of vertical wall, and a horizontal rotating arm system mounted with full-scale test tires. The test track can accommodate 12 specimens in each test run. The highest test speed achievable is currently 70 km/h, eventually 100 km/h when fully developed. The On-Board Sound Intensity Method was adopted for tire-pavement noise measurement. Tests were conducted to assess the reliability and repeatability of the test facility. Additional tests involving eight different pavement surface types were performed to illustrate that HTP2 was able to (i) measure sound intensity-frequency characteristics of tire-pavement noise matching those of actual vehicles and pavements, (ii) differentiate sound intensity of tire-pavement noise generated by different pavement types, (iii) identify increase in tire-pavement noise caused by texturing of concrete pavement, (iv) detect differences between tire-pavement noise generated by longitudinally and transversely tined concrete pavements, and (v) measure effects of surface macrotexture on tire-pavement noise.

Asphalt pavement

10.1080/10298436.2020.1745207

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Citations (4)