物理专业名词.doc

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1、Unit1Idealoperationalamplifier（opamp）理想运算放大器electronics电子学analogsignal模拟信号digitalsignal数字信号voltagegain电压增压bandwidth带宽closed-loopgain闭环增益supplyvoltage电源电压powerdissipation功率消耗resistance电阻impedance阻抗biascurrents偏置电流frequencyresponse频率响应phaseshift相移transientrespons

2、e瞬态响应distortion失真common-moderejection共模抑制open-loopgain开环增益voltage电压directcurrent（DC）直流电alternatingcurrent（AC）交流电current电流transducer传感器datasheet技术规格表offsetvoltagedrift补偿电压漂移frequency频率Unit2integratedcircuit（IC）集成电路chemistrytextbook元素周期表bipolar-junctiontransistor

3、（BJT）双极结型晶体管diode二极管field-effecttransistor（FET）场效应管transistor晶体管lightemittingdiode（LED）发光二极管flip-flop触发器metal-oxidesemiconductor（MOS）金属氧化物半导体complementary-MOS互补型base基极emitter发射极collector集电极gate栅极drain漏极source源极Unit3EM(全写Electromagnetic)filed电磁场netEMfiled净电磁场wir

4、elesscommunications无线通信physicalfiled物理场gravitationwan万有引力theweak/stronginteraction弱/强相互作用electricfiled电场magneticfiled磁场stationary/movingcharges静止/运动电荷Maxwell’sequations麦克斯韦方程组Lorentzforcelaw洛伦兹力定律quantummechanical量子力学radiotransmitter无线电发射机metalatoms金属原子radiatio

5、noflowfrequency低频辐射ultravioletcatastrophe紫外灾难afixedfrequency固定频率MaxPlanck普朗克常量thephotoelectriceffect光电效应aquantumelectrodynamics量子电动力学thegrayitationalfiledofthesun太阳重力场Unit4electronictransmitter电子发射机publictelephonenetworks公共电话网grossworldproduct世界总产值mobilephone移动

6、手机radiobroadcast无线电广播freespace自由空间point-to-pointcommunication点对点通信analogue/digitalsignals模拟/数字信号streamsofinformation信息流time-divisionmultiplexing时分多路技术（TDM）phase-shiftkeying相移键控frequency-shiftkeying频移键控amplitude-shiftkeying振幅键控amplitudemodulation幅度调制frequencymod

7、ulation频率调制Unit5MultipleAccessTechniques多址接入技术frequencyspectrum频谱fixedbandwidth固定带宽FDMA(FrequencyDivisionMultipleAccess)频分多址TDMA(TimeDivisionMultipleAccess)时分多址CDMA(CodeDivisionMultipleAccess)码分多址radiospectrum无线电频谱wirelessnetwork无线网络basestation基站analogtransmiss

8、ions模拟通信availablebandwidth可用带宽analogsignals模拟信号multipatheffects多径效应inter-symbolinterference码间串扰GlobalSystemforMobileCommunications全球移动通信系统spreadspectrumtechnique扩频技术pseudora