检索结果-南通市图书馆

Design of 1GHz local oscillator with DLL -Based Frequency Multiplier Technique

Journal of Semiconductors 2001年第8期22卷 967-970页

作者：李金城仇玉林中国科学院微电子中心北京100029

A new method of synthesizing 1GHz based on a 0 5μm CMOS D LL is proposed,which can synthesize frequency with simple logic and amplifiers.T he designed frequency synthesizer consists of a DLL (Delay-Locked Loop) and a b uilding block of synthesizing *** reference frequency input into this freq uency synthesizer is 25MHz and the synthesized frequency is 1GHz.

关键词： DLL PLL frequency synthesizer VCDL VCO transce iver local oscillator

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

Research on Silicon-Based Terahertz Communication Integrated Circuits

引用

Chinese Journal of Electronics 2022年第3期31卷 516-533页

作者： ZHOU Peigen CHEN Jixin TANG Siyuan YU Jiayang WANG Chen LI Huanbo LU Haiyan YAN Pinpin HOU Debin CHEN Zhe HONG Wei State Key Laboratory of Millimeter Waves Southeast University Science and Technology on Monolithic Integrated Circuits and Modules Laboratory

With the increasing number of users and emerging new applications, the demand for mobile data traffic is growing rapidly. The limited spectrum resources of the traditional microwave and millimeter-wave frequency bands can no longer support the future wireless communication systems with higher system capacity and data throughput. The terahertz(THz) frequency bands have abundant spectrum resources, which can provide sufficient bandwidth to expand channel capacity and increase transmission data rate. In addition, with the rapid development of silicon-based semiconductor technology,its characteristic size keeps decreasing, and the radio frequency performance of active devices is gradually approaching the performance of III-V semiconductor technology. The realization of THz communication systems based on low-cost, high-stability, and easy-to-integrate silicon-based process has become a feasible solution. This review summarizes the reported silicon-based THz communication systems, as well as the key sub-circuit chips in these systems, including the local oscillator, power amplifier, low noise amplifier, on-chip antenna and transceiver chip, etc.

关键词： Communication system Integrated circuit local oscillator On-chip antenna Power amplifier Terahertz

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Digital prototype of LLRF system for SSRF

引用

Chinese Physics C 2008年第9期32卷 758-760页

作者：赵玉彬尹成科张同宣付泽川赵振堂戴志敏刘建飞王芳 Shanghai Institute of Applied Physics CAS

This paper describes a field programming gate array （FPGA） based low level radio frequency （LLRF） prototype for the SSRF storage ring RF system： This prototype includes the local oscillator （LO）, analog front end, digital front end, RF out, clock distributing, digital signal processing and communication functions. All feedback algorithms are performed in FPGA. The long term of the test prototype with high power shows that the variations of the RF amplitude and the phase in the accelerating cavity are less than 1% and 1° respectively, and the variation of the cavity resonance frequency is controlled within 4-10 Hz.

关键词： LLRF controller field programming gate array feedback algorithm clock distribution local oscillator

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

Frequency measurement technique based on frequency conversion

引用

Journal of Measurement Science and Instrumentation 2013年第2期4卷 146-149页

作者：宁泽洪徐达旺董占勇 Science and Technology on Electronic Test & Mea surement Laboratory The 41st Institute of China Electronics Technology Group Corporation

To measure the signals with high freq u ency(>500 MHz),a sampling frequency down conversion method is *** pa per analyzes the intermodulation signals and figures out the relationship betwee n the intermodulation signal and intermediate frequenc y *** on the frequency conversion technology,an exclusion algorithm i s proposed a nd the actual implementation of the algorithm is *** application resu lts show that the exclusion algorithm can identify the intermodulation signal exactly and eliminate the bad influence on the frequency measurement.

关键词： frequency mixing intermodulation signal intermediate frequency local oscillator harmonic order

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

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

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：