检索结果-南通市图书馆

A 24.25–27.5 GHz 128-element dual-polarized 5G integrated phased array with 5.6%-EVM 400-MHz 64-QAM and 50-dBm EIRP

Science China(Information Sciences) 2022年第11期65卷 296-298页

作者： Huiqi LIU Dixian ZHAO yongran yi Xiaohu YOU School of Information Science and Engineering Southeast University Chengdu Xphased Technology Co. Ltd. 3. Purple Mountain Laboratories

With the rapid evolution of mobile communication technology, the data volume of new mobile services is growing exponentially, resulting in an explosive demand for increased data throughput [1, 2]. The 5G millimeter-wave(mm-Wave)frequency bands offer massive spectrum resources, which can greatly improve the communication rate and provide numerous possibilities for ultra-high-speed communication services [3–6].

关键词：

来源：

同方期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A 24−30 GHz 8-element dual-polarized 5G FR2 phased-array transceiver IC with 20.8-dBm TX OP1dB and 4.1-dB RX NF in 65-nm CMOS

引用

Journal of Semiconductors 2024年第1期45卷 22-32页

作者： yongran yi Dixian Zhao Jiajun Zhang Peng Gu Chenyu Xu Yuan Chai Huiqi Liu Xiaohu You National Mobile Communication Research Laboratory Southeast UniversityNanjing 211189China Purple Mountain Laboratories Nanjing 211111China Chengdu Xphased Technology Company Ltd. Chengdu 610041China

This article presents an 8-element dual-polarized phased-array transceiver(TRX)front-end IC for millimeter-wave(mm-Wave)5G new radio(NR).Power enhancement technologies for power amplifiers(PA)in mm-Wave 5G phased-array TRX are discussed.A four-stage wideband high-power class-AB PA with distributed-active-transformer(DAT)power combining and multi-stage second-harmonic traps is proposed,ensuring the mitigated amplitude-to-phase(AM-PM)distortions across wide carrier frequencies without degrading transmitting(TX)power,gain and *** and receiving(RX)switching is achieved by a matching network co-designed on-chip T/R *** each TRX element,6-bit 360°phase shifting and 6-bit 31.5-dB gain tuning are respectively achieved by the digital-controlled vector-modulated phase shifter(VMPS)and differential attenuator(ATT).Fabricated in 65-nm bulk complementary metal oxide semiconductor(CMOS),the proposed TRX demonstrates the measured peak TX/RX gains of 25.5/21.3 dB,covering the 24−29.5 GHz *** measured peak TX OP1dB and power-added efficiency(PAE)are 20.8 dBm and 21.1%,*** measured minimum RX NF is 4.1 *** TRX achieves an output power of 11.0−12.4 dBm and error vector magnitude(EVM)of 5%with 400-MHz 5G NR FR2 OFDM 64-QAM signals across 24−29.5 GHz,covering 3GPP 5G NR FR2 operating bands of n257,n258,and n261.

关键词： fifth-generation(5G) power amplifier millimeter-wave transceiver phased-array

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Additional far-red light promotes adventitious rooting of doubleroot-cutting grafted watermelon seedlings

引用

Horticultural Plant Journal 2024年第6期10卷 1424-1436页

作者： Xue Wu Xiaoyan Zhang Yaya Wang Cuinan Wu Yudong Sun yi Zhang yongran Ji Encai Bao Liru Xia Zhonghua Bian Kai Cao The Agriculture Ministry Key Laboratory of Agricultural Engineering in the Middle and Lower Reaches of Yangtze River Institute of Agricultural Facilities and EquipmentJiangsu Academy of Agricultural SciencesNanjingJiangsu 210014China Institute of Industrial Crops Jiangsu Academy of Agricultural SciencesNanjingJiangsu 210014China College of Horticulture Shanxi Agricultural UniversityTaiguShanxi 030801China Huaiyin Institute of Agricultural Science in Xuhuai District HuaianJiangsu 223001China Horticulture and Product Physiology Department of Plant SciencesWageningen University&ResearchWageningen 6700AAthe Netherlands Institute of Urban Agriculture Chinese Academy of Agricultural SciencesChengduSichuan 610299China

Root regeneration is an important factor influencing the healing rate of graft union and the survival of double-root-cutting *** date,little information is available on how to enhance root regeneration of rootstock in grafted watermelon(Citrullus lanatus)*** this study,the effects of different light treatments on root regeneration were *** revealed that addition of far-red light(Fr)could significantly expedite root formation in the ***,the results of transcriptome analysis revealed that plant hormone pathway and auxinrelated genes were greatly induced by Fr,especially for auxin-response proteins(including CmIAA11,CmIAA17,and CmAUX28),Small auxinup RNA genes(including CmSAUR20 and CmSAUR50)and the auxin efflux transporter(CmPIN3).In addition,the expression of Phytochrome Interacting Factor(PIFs),such as CmPIF1,CmPIF3 and CmPIF7,was remarkably increased by *** genes may act together to activate auxinrelated pathways under Fr *** on the results of HPLC-MS/MS analysis,the concentrations of different auxin-types in adventitious root were significantly influenced by ***,the better growth of rootstock root displayed superior vasculature transport activity of the graft union with Fr treatment,which was determined by the acid magenta dyeing ***,all the results suggested that Fr could induce AR formation in rootstocks,which may be associated with the auxin accumulation by regulating the transcriptional level of auxinrelated and PIF *** findings of this study demonstrated a practicable way to shorten the healing period of graftings and improve the quality of grafted watermelon seedlings,which will provide a theoretical basis for the speeding development of industrialized seedlings production.

关键词： Watermelon Double-root-cutting grafting Rootstock Adventitious root regeneration Auxin

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：