电子科技大学：《无线系统中的微波与射频 Microwave and RF Design in Wireless Systems》课程教学资源（课件讲稿）ch01 Introduction to wireless system 无线系统介绍

●●● ●●●● ●●●●@ ●●●● ●●●● ●●●● ●●● Microwave and RF Design in Wireless Systems 无线系统的微波与射频设计 Prof.Dr.Xian Qi Lin (林先其) E-Mail:xqlin@uestc.edu.cn kdlinxianqi@163.com Tel:13541347453 Office:C310# 1

Microwave and RF Design in Wireless Systems 无线系统的微波与射频设计 E-Mail: xqlin@uestc.edu.cn kdlinxianqi@163.com Tel: 13541347453 Office: C310# Prof. / Dr. Xian Qi Lin (林先其 ) 1

●●● ●●●● ●●●●● ●●●● ● Microwave(MW)微波：300MHz~300GHz ●●●●0 ●●●0 ●●●● Radio frequency(RF)射频：30MHz~3GHz ●● ● Wireless:无线：space propagation(no cable) ●System系统：multi-function David M.Pozar, “Microwave an of Wireless Sys http://www.ecs.um “Microwave Engi 2012,about 60-year-old

 Microwave (MW)微波: 300 MHz ~ 300GHz  Radio frequency (RF)射频: 30MHz~3GHz  Wireless无线: space propagation (no cable)  System系统: multi-function David M. Pozar, Ph. D 80’ “Microwave and RF Design of Wireless Systems” http://www.ecs.umass.edu/ece/pozar/pozarhome.htm “Microwave Engineering” 2 2012, about 60-year-old

●●● ●●●● ●●●●心 Contents内容(366,40) ●●●● ●●●●0 ●●●● ●●●色 ●Introduction to wireless system(28,3)无线系统介绍 ●● ● Transmission line and microwave networks (39,4) 传输线和微波网络 Noise and distortion in microwave systems (43,5) 微波系统中的噪声与失真 Antennas and propagation for wireless systems (40,5) 无线系统的天线与传播 ●Filters(37,2)滤波器 ●】 Ampliters(37,3)放大器 Mixers(25,2)混频器 ● Transistor oscillators and frequency synthesizers(38,5) ● 晶体管振荡器与频率综合 ●Modulation techniques(47,8)调制技术 ● Receiver design(22,2)接收机设计 ●Review(*,1) 复习 3

Contents内容 (366, 40)  Introduction to wireless system (28, 3)无线系统介绍  Transmission line and microwave networks (39, 4) 传输线和微波网络  Noise and distortion in microwave systems (43, 5) 微波系统中的噪声与失真  Antennas and propagation for wireless systems (40, 5) 无线系统的天线与传播  Filters (37, 2) 滤波器  Ampliters (37, 3) 放大器  Mixers (25, 2) 混频器  Transistor oscillators and frequency synthesizers (38, 5)  晶体管振荡器与频率综合  Modulation techniques (47, 8) 调制技术  Receiver design (22, 2) 接收机设计  Review (* , 1) 复习 3

●●● Cha.1 Introduction to ●●●● ●●●●@ ●●●0 ●●●● vireless system无线系统介绍 ●●●0 ●●●● ●● Major wireless system in use today 。当今主要使用的无线系统 ●System performance ·系统性能 。 System design 。系统设计 ● Circuits design 。电路设计 4

 Cha.1 Introduction to wireless system 无线系统介绍  Major wireless system in use today  当今主要使用的无线系统  System performance  系统性能  System design  系统设计  Circuits design  电路设计 4

●●● ●●●● ●§1.1 Major wireless system ●●●●店 ●●●● ●●●●0 ●●●● in use today当今主要使用的无线系统 ●●●色 ●● ●PCS(Personal communication systems)个人通讯 系统 ●WLAN(Vireless Local Area Networks)无线局域网 ● GPS(Global Positioning System)全球定位系统 ●DBS(Direct broadcast satellite)直播卫星 ●LMDS(Local multipoint distribution serves)☒域 多点传输服务RFID(RF identification)射谢频识别 MMDS(Multipoint multi-channel distribution serves)多点多信道传输服务 ●Bluetooth蓝牙 5

 §1.1 Major wireless system in use today当今主要使用的无线系统  PCS (Personal communication systems)个人通讯 系统  WLAN（Wireless Local Area Networks )无线局域网  GPS（Global Positioning System )全球定位系统  DBS (Direct broadcast satellite)直播卫星  LMDS (Local multipoint distribution serves )区域 多点传输服务RFID (RF identification)射频识别  MMDS (Multipoint multi-channel distribution serves)多点多信道传输服务  Bluetooth 蓝牙 5

●●●】 ●●●● Wireless System Classification ●●●● ●●●● ●●●● 无线系统分类 ●●●● ●●●● ● ● 1.Classification according to the signal shape (baseband signal) 根据信号的波形（基频信号） 2.Classification according to the number of Tx/Rx 根据发射接收机的个数 3.Classification according to the directionality 根据方向性 4.Classification according to the place of system 根据系统空间 6

1.Classification according to the signal shape (baseband signal) 根据信号的波形（基频信号） 2.Classification according to the number of Tx/Rx 根据发射 /接收机的个数 3. Classification according to the directionality 根据方向性 4. Classification according to the place of system 根据系统空间 Wireless System Classification 无线系统分类 6

●●● ●●●● 1.Classification according to ●●●●@ ●●●0 ●●●●0 ●●●0 the signal shape (baseband ●●●● ●● signal) ●Analog system模拟系统 ●Digital system数字系统 7

1.Classification according to the signal shape (baseband signal)  Analog system 模拟系统  Digital system 数字系统 7

●●●】 2.Classification according to ●●●● ●●●● ●●●● ●●●● the number of Tx/Rx ●●●● ●●●● ●● Point-to-point (Broadcasting Station) 点对点（广播站） .Point-to-multipoint (Direct Broadcast Satellite) 单点对多点（直播卫星） Multipoint-to-multipoint (PCS) 多点对多点（个人通信系统） 8

2. Classification according to the number of Tx/Rx  Point-to-point (Broadcasting Station) 点对点（广播站）  Point-to-multipoint (Direct Broadcast Satellite) 单点对多点（直播卫星）  Multipoint-to-multipoint (PCS) 多点对多点（个人通信系统） 8

●●●】 3.Classification according to ●●●● ●●●●心 ●●●● ●●●●0 the directionality ●●●● ●●●● ●● ●Simplex system单工系统：One way,LMDS, broadcast 。 Half-duplex system半双工系统：Push-to-talk (Interphone)对讲机 ●Full-duplex system全双工系统： FDD(frequency division duplex)频分双工， TDD(time division duplex)时分双工， Polarized duplex极化双工 9

3. Classification according to the directionality  Simplex system单工系统: One way, LMDS, broadcast  Half-duplex system半双工系统: Push-to-talk (Interphone)对讲机  Full-duplex system全双工系统:  FDD (frequency division duplex)频分双工,  TDD (time division duplex)时分双工,  Polarized duplex极化双工 9

●●●】 ●●●● ●●●● 4.Classification according to ●●●0 ●●●●0 ●●●● ●●●● the place of system ●● ●Ground based system ·地基系统 ● Space based system:GEO,MEO,LEO ·基于空间的系统：地球同步轨道，中地球轨道，近地轨道 10

4. Classification according to the place of system  Ground based system  地基系统  Space based system: GEO, MEO, LEO  基于空间的系统：地球同步轨道，中地球轨道，近地轨道 10