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An attenuator is an electronic device that reduces the amplitudAnattenuator is an electronic device which reduces the amplitude orpower of a signal without distorting its waveform. It is opposite ofamplifier .while amplifier provides gain but attenuator provides lossor gain less than 1.Theattenuators are made from voltage divider networks and are passivedevices With the help of potentiometers adjustable attenuators aremade and stepped attenuators are made from switching betweenresistances.Toreduce voltage, dissipate power and to improve matching fixedattenuators are used. Attenuators are also used to 'match' impedancesby lowering apparent Standing Wave Ratio.Thecoupling portions are available in all types of plug and jackcombinations of attenuators and stainless steel is used for theexternal cladding to form a small and durable structure.Althoughsome attenuators are of the surface mount type, but they offersuperior high frequencycharacteristicsfrom DC to 8 Ghz.Thereare different types of attenuators like RF Attenuators and AudioAttenuatorsRF attenuatorsRadiofrequency attenuators are typically coaxial in structure withprecision connectors as ports and coaxial, micro strip or thin-filminternal structure. Importantcharacteristics are:accuracy,lowStanding Wave Ratio, flatfrequency-response and repeatability.Thesize and shape of the attenuator depends on its ability to dissipatepower. RF attenuators are used as loads for and as known attenuationsand protective dissipations of power in measuring RF signals.Audio attenuatorsAline-level attenuator in the preamp or a power attenuator after thepower amplifier uses electrical resistance to reduce the amplitude ofthe signal that reaches the speaker, reducing the volume of theoutput. A line-level attenuator has lower power handling, such as a1/2-watt potentiometer. A power attenuator has higher power handling,such as 10 or 50 watts.Features1.Variationsof AttenuatorsAttenuatorsare available in wide variety of variations from 0 to 30 dB in 0.5 dBto 1 db steps, so that levels can be finely adjusted.2.HighDegree of Matching and High ReliabilityAttenuatorsuse a distributed constant circuit and metal film resistors. Ahighdegree of matching is also achieved. Furthermore,these attenuatorsshow stable characteristics for environments of varying temperature,humidity, and gases.3.SmallSize and EconomicalTheattenuators are in abundance of small size less weight and veryeconomical. Small size and light weight allows side-by-side panelmounting of several attenuators. Small, lightweight and low V.S.W.Rmakes it ideally suited for the widely used high frequencytransmission applications. Frequency bandwidth and high reliabilityis achieved by the use of resistance substrate on the extremely thinboard, to form a suspended line. HRS unique resistance substratedesign and center conductor connection assures consistent and stableperformance in changing temperature environments4.EasyconnectionBecause of output / inputconnectors face back,connection and disconnection is quietlypossible. Attenuators even can be modified to fit specificrequirementsApplicationsWidevariety of measuring instruments and other devices requiring controlof high frequencytransmissionlines.Opticaltransmission devicesNetwork analyzersBERTS (Bit Error RatioTesting Systems)FWA (Fixed WirelessAccess)Measurement applicationsrequiring transmission frequencies of up to 65 Ghz.W-CDMAbase stations and a wide variety of high frequency devices.DWDMapplications Aerospaceindustries Telecomsindustries Securityconnections TestingEngineering Services Article Tags: High Frequency, Wide Variety
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