【技术】快速理解高频、射频、微波的区别和特点
高频:就是频率高(VHF或UHF、SHF),单位一般用MHz(兆赫)表示。
射频:Radio Frequency,简称RF。射频就是射频电流,它是一种高频交流变化电磁波的简称。每秒变化小于1000次的交流电称为低频电流,大于10000次的称为高频电流,而射频就是这样一种高频电流。目前应用最广泛的自动识别技术大致可以分为两个方面:光学技术和无线电技术两个方面。其中光学技术中普遍应用的产品有:条形码和摄像两大类。这两类产品目前已广泛应用于人们的日常生活中,并已为人们所熟知。比如:条形码用于商品管理,摄像用于抓拍违章车辆等。
微波:微波的频率极高,波长又很短,其在空中的传播特性与光波相近,也就是直线前进,遇到阻挡就被反射或被阻断,因此微波通信的主要方式是视距通信,超过视距以后需要中继转发。用于微波通信(Microwave Communication),是使用波长在0.1毫米至1米之间的电磁波——微波进行的通信。微波通信不需要固体介质,当两点间直线距离内无障碍时就可以使用微波传送。利用微波进行通信具有容量大、质量好并可传至很远的距离,因此是国家通信网的一种重要通信手段,也普遍适用于各种专用通信网。我国微波通信广泛应用L、S、C、X诸频段,K频段的应用尚在开发之中。
高频和射频都是指电磁波的频率,不同点在于高频大于10K,射频为300K-300G,射频是高频的较高频段 ,所以把具有远距离传输能力的高频电磁波称为射频。高频电磁波称为射频。
优译6.0~27.5GHz,13×18mm隔离器/环行器推荐
01.同轴隔离器 型号:UIYCI1318A
参数表
机械图:
参数图
02.同轴环行器 型号:UIYCC1318A
参数表
机械图:
参数图
03.嵌入式隔离器 型号:UIYDI1318A
参数表
机械图:
参数图
04.嵌入式环行器 型号:UIYDC1318A
参数表
机械图:
参数图
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本文由奶爸工程师转载自优译,原文标题为:快速理解高频、射频、微波的区别和特点,本站所有转载文章系出于传递更多信息之目的,且明确注明来源,不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
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【技术】科普射频技术(蓝牙、下一代WLAN、网络优化、超宽带无线技术)在无线通信中的应用
射频(RF)就是射频电流,它是一种高频交流变化电磁波的简称。每秒变化小于1000次的交流电称为低频电流,大于10000次的称为高频电流,而射频就是这样一种高频电流。射频技术在无线通信领域具有广泛的、不可替代的作用。
技术探讨 发布时间 : 2022-11-29
优译环行器选型表
优译同轴环行器、表面封装环行器(SMT环形器)、微带环行器、单节微带环行器、微带基片环行器、嵌入式带线环行器选型;多种频率范围,Insertion Loss Max(dB):0.2-5dB,Isolation Min(dB):1.4-30dB,VSWR Max:1.15-1.8,Forward Power(W):2-1500W,Reverse Power(W):2-1500W,低插损、高隔离、高功率;可按客户要求定制。
产品型号
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品类
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Freq. Range(MHz、GHz)
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Insertion Loss Max(dB)
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Isolation Min(dB)
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VSWR Max
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Forward Power(W)
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Reverse Power(W)
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Connector Type
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Temp.(℃)
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UIYWC6880A54T59
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波导环行器
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5.4 ~ 5.9 GHz
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0.3
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23
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1.2
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100
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100
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WR137(BJ70)
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-40 ~ +85
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选型表 - 优译 立即选型
【产品】优译推出700至2000MHz同轴环行器UIYCC3434A,隔离度至高23dB,射频性能高
优译推出同轴环行器UIYCC3434A,其频率范围最小值为700M赫兹,最大值可达到1875M赫兹,连接器类型组合有SMA-F、N-F、SMA-M to SMA-F to SMA-F三种类型组合,工作温度最低为-40℃,最高可达到+85℃。
产品 发布时间 : 2022-08-08
700 to 5000MHz – Coaxial Circulator
型号- UIYCC2528A1200T1400SF,UIYCC2528A925T960SF,UIYCC2528A1700T1900NFTNMTNF,UIYCC2528A1900T2200NFTNMTNF,UIYCC2528A3400T4200SF,UIYCC2528A700T750SF,UIYCC2528A1500T1700NF,UIYCC2528A2300T3000SF,UIYCC2528A2700T3100SF,UIYCC2528A2400T2600SF,UIYCC2528A3000T3600SF,UIYCC2528A2600T3300SF,UIYCC2528A3500T4000SF,UIYCC2528A2500T2700NF,UIYCC2528A1700T2200SF,UIYCC2528A2300T2500SF,UIYCC2528A2000T2500SF,UIYCC2528A2850T3300SF,UIYCC2528A4000T4600SF,UIYCC2528A869T894NF,UIYCC2528A2000T2700SF,UIYCC2528A4400T5000SF
UIYCI1318A 6 to 27.5GHz – Coaxial Isolator
型号- UIYCI1318A,UIYCI1318A74T77SF,UIYCI1318A78T86SF,UIYCI1318A22T24SF,UIYCI1318A6T8SF,UIYCI1318A8T10SF,UIYCI1318A107T133SFTSM,UIYCI1318A138T178SF,UIYCI1318A8T12SF,UIYCI1318A8T11SF,UIYCI1318A7T9SF,UIYCI1318A24T26KF,UIYCI1318A1375T145SF,UIYCI1318A21T23SF,UIYCI1318A155T165SF,UIYCI1318A10T15SFTSM,UIYCI1318A12T18SF,UIYCI1318A93T95SM,UIYCI1318A23T25SF,UIYCI1318A2425T275KF,UIYCI1318A25T27KF,UIYCI1318A18T22SF,UIYCI1318A9T10SF,UIYCI1318A18T20SF,UIYCI1318A9T11SF,UIYCI1318A16T18SF,UIYCI1318A10T13SF
【产品】优译推出250至1500MHz/300W同轴环行器UIYCC4550A,隔离度至高25dB,射频性能高
优译推出同轴环行器UIYCC4550A,正向功率和反向功率最小值为100W,最大值为300W,连接器类型组合有N-F、SMA-F、SMA-M to SMA-F to SMA-F、N-M to N-F四种类型组合,工温-30℃至+70℃。
产品 发布时间 : 2022-08-11
【元件】优译提供2款常用L波段同轴隔离器、双节环行器,最大驻波比1.4,工作温度范围-10~+70℃
根据IEEE 521-2002标准,L波段是指频率在1-2GHz的无线电波波段;属于毫米波,它是无线电频谱中的一个重要部分。本文优译推荐2款常用L波段同轴隔离器、环行器,频率范围:1.0-2.0GHz,最大插入损耗0.6/1.4dB,最大驻波比1.4,工作温度范围-10~+70℃.
产品 发布时间 : 2023-12-02
UIYCC1318A 6 to 36GHz – Coaxial Circulator
型号- UIYCC1318A8T11SF,UIYCC1318A23T25SF,UIYCC1318A8T12SF,UIYCC1318A7T9SF,UIYCC1318A8T10SF,UIYCC1318A10T13SF,UIYCC1318A6T8SF,UIYCC1318A78T86SF,UIYCC1318A107T133SFTSMTSF,UIYCC1318A18T20SF,UIYCC1318A22T24SF,UIYCC1318A18T22SF,UIYCC1318A9T10SF,UIYCC1318A9T11SF,UIYCC1318A93T95SM,UIYCC1318A16T18SF,UIYCC1318A155T165SF,UIYCC1318A74T77SF,UIYCC1318A,UIYCC1318A2425T275KF,UIYCC1318A25T27KF,UIYCC1318A27T31KF,UIYCC1318A12T18SF,UIYCC1318A34T36KF,UIYCC1318A10T15SFTSMTSF,UIYCC1318A138T178SF,UIYCC1318A27T29KF,UIYCC1318A24T26KF,UIYCC1318A21T23SF,UIYCC1318A1375T145SF
UIYCC1318A 6 to 27.5GHz – Coaxial Circulator Data Sheet
型号- UIYCC1318A8T11SF,UIYCC1318A23T25SF,UIYCC1318A8T12SF,UIYCC1318A107T133SFTSM,UIYCC1318A7T9SF,UIYCC1318A8T10SF,UIYCC1318A10T13SF,UIYCC1318A6T8SF,UIYCC1318A78T86SF,UIYCC1318A18T20SF,UIYCC1318A22T24SF,UIYCC1318A18T22SF,UIYCC1318A9T10SF,UIYCC1318A9T11SF,UIYCC1318A93T95SM,UIYCC1318A16T18SF,UIYCC1318A155T165SF,UIYCC1318A25T27292F,UIYCC1318A74T77SF,UIYCC1318A,UIYCC1318A12T18SF,UIYCC1318A10T15SFTSM,UIYCC1318A2425T275292F,UIYCC1318A24T26292F,UIYCC1318A21T23SF,UIYCC1318A1375T145SF
优译(UIY)6至18GHz同轴隔离器数据手册
描述- 6 to 18GHz – Coaxial Isolator datasheet
型号- UIYBCI1621A6T18SF,UIYBCI1621A6T18SMTSF
UIYCC1318A 6 to 27.5GHz – Coaxial Circulator
型号- UIYCC1318A8T11SF,UIYCC1318A23T25SF,UIYCC1318A8T12SF,UIYCC1318A8T10SF,UIYCC1318A7T9SF,UIYCC1318A10T13SF,UIYCC1318A6T8SF,UIYCC1318A78T86SF,UIYCC1318A107T133SFTSMTSF,UIYCC1318A18T20SF,UIYCC1318A22T24SF,UIYCC1318A18T22SF,UIYCC1318A9T10SF,UIYCC1318A9T11SF,UIYCC1318A93T95SM,UIYCC1318A16T18SF,UIYCC1318A155T165SF,UIYCC1318A74T77SF,UIYCC1318A,UIYCC1318A2425T275KF,UIYCC1318A25T27KF,UIYCC1318A12T18SF,UIYCC1318A10T15SFTSMTSF,UIYCC1318A138T178SF,UIYCC1318A24T26KF,UIYCC1318A21T23SF,UIYCC1318A1375T145SF
UIYCI1318A 6 to 35GHz – Coaxial Isolator
型号- UIYCI1318A,UIYCI1318A74T77SF,UIYCI1318A78T86SF,UIYCI1318A22T24SF,UIYCI1318A6T8SF,UIYCI1318A8T10SF,UIYCI1318A107T133SFTSM,UIYCI1318A138T178SF,UIYCI1318A8T12SF,UIYCI1318A8T11SF,UIYCI1318A7T9SF,UIYCI1318A24T26KF,UIYCI1318A1375T145SF,UIYCI1318A21T23SF,UIYCI1318A155T165SF,UIYCI1318A10T15SFTSM,UIYCI1318A12T18SF,UIYCI1318A93T95SM,UIYCI1318A23T25SF,UIYCI1318A2425T275KF,UIYCI1318A25T27KF,UIYCI1318A18T22SF,UIYCI1318A9T10SF,UIYCI1318A18T20SF,UIYCI1318A9T11SF,UIYCI1318A16T18SF,UIYCI1318A10T13SF
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