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Omnidirectional Antenna Diversity System for High-Speed Onboard Communication Article

Yongjian Zhang, Yue Li, Weiquan Zhang, Zhijun Zhang, Zhenghe Feng

Engineering 2022, Volume 11, Issue 4,   Pages 72-79 doi: 10.1016/j.eng.2020.10.014

Abstract:

In this article, an omnidirectional dual-polarized antenna with synergeticelectromagnetic and aerodynamic properties is propounded for high-speed diversity systems.The propounded antenna comprises a probe-fed cavity for horizontally polarized radiation and a microstrip-fedThe propounded antenna is fabricated for design verification, and the experimental results agree wellThe propounded diversity antenna has electromagnetic and aerodynamic merits, and exhibits an excellent

Keywords： Antenna diversity system     Aerodynamics     Electromagnetics     Omnidirectional radiation     High-speed onboard    

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A novel wideband ring antenna for polarization/pattern diversity Correspondence

Li SUN, Shigang ZHOU, Guanxi ZHANG, Baohua SUN

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 6,   Pages 975-983 doi: 10.1631/FITEE.2100421

Abstract:

We present a novel wideband ring antenna for polarization/pattern diversity.We prove that this method can maintain the wideband characteristics of the antenna.Four independent feeding ports in a ring antenna aperture are designed for the polarization/pattern diversityAs an example, a wideband dual-polarized antenna was designed based on the proposed ring antenna.Because the proposed antenna is hollow, it is a good candidate for a multiband sharing aperture antenna

Keywords： 环形天线；宽带天线；极化分集；方向图分集    

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CROP DIVERSITY AND SUSTAINABLE AGRICULTURE: MECHANISMS, DESIGNS AND APPLICATIONS

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 3,   Pages 359-361 doi: 10.15302/J-FASE -2021417

Abstract: The global crop diversity has declined in past decades.A group of long-term field experiments demonstrated that crop diversity also stabilizes temporal grainTherefore, maintaining crop diversity at both national and field levels is of considerable importance

Crop diversity includes temporal (crop rotation) and spatial diversity (e.g., intercropping,an and coworkers suggested that there needs to be more coordination and cooperation between agrifood system

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Antenna-in-package system integrated with meander line antenna based on LTCCtechnology

Gang DONG,Wei XIONG,Zhao-yao WU,Yin-tang YANG

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 1,   Pages 67-73

Abstract:

We present an antenna-in-package system integrated with a meander line antenna based on low temperatureThe proposed system employs a meander line patch antenna, a packaging layer, and a laminated multi-chipThe meander line antenna achieved a bandwidth of 220 MHz with the center frequency at 2.4 GHz, a maximumThe whole system, with a small size of 20.2 mm×6.1 mm×2.6 mm, can be easily realized by a standard LTCCThis antenna-in-package system integrated with a meander line antenna was fabricated and the experimental

Keywords： Antenna-in-package (AiP)     Meander line antenna     Multi-chip module (MCM)     Low temperature co-fired ceramic    

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Fungal diversity and its mechanism of community shaping in the milieu of sanitary landfill

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 4, doi: 10.1007/s11783-020-1370-6

Abstract:

• Ascomycota was the predominant phylum in sanitary landfill fungal communities.

Keywords： Sanitary landfill     Fungal community     Diversity     Saprotroph     Physical habitat     Environmental factor    

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Space-frequency Joint Blind Multi-user Detection Algorithm in Smart Antenna MC-CDMA System

Fu Hongliang,Feng Guangzeng

Strategic Study of CAE 2006, Volume 8, Issue 2,   Pages 34-38

Abstract:

A space-frequency joint blind multi-user adaptive detection algorithm in smart antenna MC-CDMA systemIt can enhance the performance of detection of the system.

Keywords： smart antenna     multi-carrier     CDMA     joint detection    

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Antenna-in-package system integrated with meander line antenna based on LTCC technology

Gang Dong, Wei Xiong, Zhao-yao Wu, Yin-tang Yang,gdong@mail.xidian.edu.cn

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 1,   Pages 67-73 doi: 10.1631/FITEE.1500167

Abstract: We present an antenna-in-package system integrated with a based on technology.The proposed system employs a meander line patch antenna, a packaging layer, and a laminated for integrationThe whole system, with a small size of 20.2 mm×6.1 mm×2.6 mm, can be easily realized by a standard LTCCThis antenna-in-package system integrated with a was fabricated and the experimental results agreed

Keywords： Antenna-in-package (AiP)     Meander line antenna     Multi-chip module (MCM)     Low temperature co-fired ceramic    

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Grassland management practices in Chinese steppes impact productivity, diversity and the relationship

Yingjun ZHANG, Wenjie LU, Hao ZHANG, Jiqiong ZHOU, Yue SHEN

Frontiers of Agricultural Science and Engineering 2018, Volume 5, Issue 1,   Pages 57-63 doi: 10.15302/J-FASE-2017192

Abstract: crucial parts of the terrestrial ecosystem, with an extremely high differentiation of productivity and diversityThis study focuses on the changes in productivity and diversity and the relationship between them asProductivity was significantly improved but diversity was lost by fertilizing.N fertilization also reduced the sensitivity of diversity to productivity.Mowing also slowed down the decline in diversity as productivity increased.

Keywords： diversity     fertilizing     grassland management practice     grazing     mowing     productivity     reseeding    

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Effect of salinity on community structure and naphthalene dioxygenase gene diversity of a halophilic

Tingting Fang, Ruisong Pan, Jing Jiang, Fen He, Hui Wang

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 6, doi: 10.1007/s11783-016-0888-0

Abstract: aromatic hydrocarbons (PAHs) biodegradation, community structure and naphthalene dioxygenase gene ( ) diversity

Keywords： Phenanthrene     Halophilic bacteria     Gene diversity     Naphthalene dioxygenase genes    

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Primary assessment of the diversity of Omicron sublineages and the epidemiologic features of autumn/winter

Frontiers of Medicine 2023, Volume 17, Issue 4,   Pages 758-767 doi: 10.1007/s11684-022-0981-7

Abstract: With the recent ongoing autumn/winter 2022 COVID-19 wave and the adjustment of public health control measures, there have been widespread SARS-CoV-2 infections in Chinese mainland. Here we have analyzed 369 viral genomes from recently diagnosed COVID-19 patients in Shanghai, identifying a large number of sublineages of the SARS-CoV-2 Omicron family. Phylogenetic analysis, coupled with contact history tracing, revealed simultaneous community transmission of two Omicron sublineages dominating the infections in some areas of China (BA.5.2 mainly in Guangzhou and Shanghai, and BF.7 mainly in Beijing) and two highly infectious sublineages recently imported from abroad (XBB and BQ.1). Publicly available data from August 31 to November 29, 2022 indicated an overall severe/critical case rate of 0.035% nationwide, while analysis of 5706 symptomatic patients treated at the Shanghai Public Health Center between September 1 and December 26, 2022 showed that 20 cases (0.35%) without comorbidities progressed into severe/critical conditions and 153 cases (2.68%) with COVID-19-exacerbated comorbidities progressed into severe/critical conditions. These observations shall alert healthcare providers to place more resources for the treatment of severe/critical cases. Furthermore, mathematical modeling predicts this autumn/winter wave might pass through major cities in China by the end of the year, whereas some middle and western provinces and rural areas would be hit by the upcoming infection wave in mid-to-late January 2023, and the duration and magnitude of upcoming outbreak could be dramatically enhanced by the extensive travels during the Spring Festival (January 21, 2023). Altogether, these preliminary data highlight the needs to allocate resources to early diagnosis and effective treatment of severe cases and the protection of vulnerable population, especially in the rural areas, to ensure the country’s smooth exit from the ongoing pandemic and accelerate socio-economic recovery.

Keywords： SARS-CoV-2     COVID-19     Omicron     genomic epidemiology    

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Phylogenetic diversity of NO reductases, new tools for monitoring, and insights into NO production in

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 10, doi: 10.1007/s11783-022-1562-3

Abstract:

● 548 representative nor genes were collected to create complete phylogenetic trees.

Keywords： N2O     Greenhouse gas     NO reductase     NO dismutase     Primer     Crystal structure    

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High Performance Electrically Small Huygens Rectennas Enable Wirelessly Powered Internet of Things Sensing Applications: A Review Review

Wei Lin, Richard W. Ziolkowski

Engineering 2022, Volume 11, Issue 4,   Pages 42-59 doi: 10.1016/j.eng.2021.08.025

Abstract: This paper reviews various rectenna miniaturization techniques such as meandered planar inverted-F antennarectennas; wirelessly powered IoT sensors based on these designs; and a dual-functional HLP rectenna and antennasystem.

Keywords： Antenna     Array     Cardioid pattern     Electrically small antenna     Huygens dipole antenna     Internet of Things (    

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Genetic diversity and population structure of indigenous chicken breeds in South China

Xunhe HUANG,Jinfeng ZHANG,Danlin HE,Xiquan ZHANG,Fusheng ZHONG,Weina LI,Qingmei ZHENG,Jiebo CHEN,Bingwang DU

Frontiers of Agricultural Science and Engineering 2016, Volume 3, Issue 2,   Pages 97-101 doi: 10.15302/J-FASE-2016102

Abstract: South China and two commercial breeds were genotyped for 26 microsatellites to investigate the genetic diversityHigher genetic diversity was revealed in the indigenous chicken breeds rather than in the commercial

Keywords： microsatellites     genetic diversity     population structure     indigenous chicken     South China     conservation    

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System design of microwave radiometer of HY-2A satellite

Li Yanming,Jiang Min,Yu Rui,Chen Wenxin

Strategic Study of CAE 2013, Volume 15, Issue 7,   Pages 39-43

Abstract: This paper introduced the design of instrument including system design, antenna design, receiver design

Keywords： microwave radiometer     system design     antenna     microwave receiver    

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MIMO handset antenna for 5G/WLAN applications Correspondences

Yong CHENG, Jing LU, Bing-qing SHENG

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 1,   Pages 182-187 doi: 10.1631/FITEE.1900478

Abstract: We propose a dual-module multiple-input multiple-output (MIMO) antenna for portable terminals.The operating bands of the handheld terminal antenna are 5G (3.4–3.8 GHz) and WLAN (5.150–5.925 GHz).Antenna elements of 5G and WLAN are spaced to reduce coupling between antenna elements in the same moduleThe return loss of all antenna elements is larger than 6 dB.of the low-frequency antenna is greater than 40%.

Keywords： Fifth-generation (5G)     Handset antenna     Multiple-input multiple-output (MIMO) antenna     Decouple    

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Title Author Date Type Operation

Omnidirectional Antenna Diversity System for High-Speed Onboard Communication

Yongjian Zhang, Yue Li, Weiquan Zhang, Zhijun Zhang, Zhenghe Feng

Journal Article

A novel wideband ring antenna for polarization/pattern diversity

Li SUN, Shigang ZHOU, Guanxi ZHANG, Baohua SUN

Journal Article

CROP DIVERSITY AND SUSTAINABLE AGRICULTURE: MECHANISMS, DESIGNS AND APPLICATIONS

Journal Article

Antenna-in-package system integrated with meander line antenna based on LTCCtechnology

Gang DONG,Wei XIONG,Zhao-yao WU,Yin-tang YANG

Journal Article

Fungal diversity and its mechanism of community shaping in the milieu of sanitary landfill

Journal Article

Space-frequency Joint Blind Multi-user Detection Algorithm in Smart Antenna MC-CDMA System

Fu Hongliang,Feng Guangzeng

Journal Article

Antenna-in-package system integrated with meander line antenna based on LTCC technology

Gang Dong, Wei Xiong, Zhao-yao Wu, Yin-tang Yang,gdong@mail.xidian.edu.cn

Journal Article

Grassland management practices in Chinese steppes impact productivity, diversity and the relationship

Yingjun ZHANG, Wenjie LU, Hao ZHANG, Jiqiong ZHOU, Yue SHEN

Journal Article

Effect of salinity on community structure and naphthalene dioxygenase gene diversity of a halophilic

Tingting Fang, Ruisong Pan, Jing Jiang, Fen He, Hui Wang

Journal Article

Primary assessment of the diversity of Omicron sublineages and the epidemiologic features of autumn/winter

Journal Article

Phylogenetic diversity of NO reductases, new tools for monitoring, and insights into NO production in

Journal Article

High Performance Electrically Small Huygens Rectennas Enable Wirelessly Powered Internet of Things Sensing Applications: A Review

Wei Lin, Richard W. Ziolkowski

Journal Article

Genetic diversity and population structure of indigenous chicken breeds in South China

Xunhe HUANG,Jinfeng ZHANG,Danlin HE,Xiquan ZHANG,Fusheng ZHONG,Weina LI,Qingmei ZHENG,Jiebo CHEN,Bingwang DU

Journal Article

System design of microwave radiometer of HY-2A satellite

Li Yanming,Jiang Min,Yu Rui,Chen Wenxin

Journal Article

MIMO handset antenna for 5G/WLAN applications

Yong CHENG, Jing LU, Bing-qing SHENG

Journal Article