Lub attenuator yog ib qho khoom siv hluav taws xob uas tau siv dav hauv cov khoom siv hluav taws xob, thiab nws lub luag haujlwm tseem ceeb yog muab attenuation. Nws yog ib qho khoom siv hluav taws xob, uas hloov mus ua cua sov tom qab siv hluav taws xob. Nws lub hom phiaj tseem ceeb yog: (1) Kho qhov loj ntawm lub teeb liab hauv Circuit Court; (2) Hauv kev sib piv txoj kev ntsuas hluav taws xob, nws tuaj yeem siv ncaj qha los nyeem tus nqi attenuation ntawm kev sim network; (3) Txhim kho impedance sib txuam, yog tias qee lub voj voog xav tau Thaum siv cov khoom thauj khoom ruaj khov, lub attenuator tuaj yeem muab tso rau ntawm lub Circuit Court thiab qhov tseeb load impedance kom tsis txhob hloov impedance. Yog li thaum siv lub attenuator, dab tsi yog qhov yuav tsum tau saib xyuas?
Cia peb ua kom paub meej hauv qab no:
1. Cov lus teb zaus: qhov zaus bandwidth, feem ntau qhia hauv megahertz (MHz) lossis gigahertz (GHz). General-purpose attenuators feem ntau muaj bandwidth ntawm 5 GHz, nrog rau qhov siab tshaj plaws bandwidth ntawm 50 GHz.
2. Attenuation ntau thiab cov qauv:
Attenuation ntau yog hais txog qhov attenuation piv, feem ntau xws li 3dB, 10dB, 14dB, 20dB, mus txog 110dB. Tus qauv attenuation yog: 10lg (input/output), piv txwv li: 10dB characterization: input: output = attenuation multiple = 10 times. Cov qauv feem ntau muab faib ua ob hom: tsau proportional attenuator thiab kauj ruam proportional adjustable attenuator. Lub attenuator ruaj yog hais txog tus attenuator nrog qhov sib piv ruaj khov ntau hauv ib qho kev sib tw ntau zaus. Ib kauj ruam attenuator yog ib qho attenuator nrog tus nqi ruaj khov thiab sib npaug ntawm qhov sib npaug ntawm qhov hloov tau. Nws muab faib ua phau ntawv kauj ruam attenuator thiab programmable kauj ruam attenuator.
3. Daim ntawv txuas lub taub hau thiab kev sib txuas loj:
Hom connector yog muab faib ua BNC hom, N hom, TNC hom, SMA hom, SMC hom, thiab lwm yam. Nyob rau tib lub sij hawm, lub connector zoo muaj ob hom: txiv neej thiab poj niam.
Qhov loj ntawm kev sib txuas yog muab faib ua metric thiab imperial systems, thiab cov saum toj no yog txiav txim raws li qhov yuav tsum tau ntawm kev siv; Yog tias cov hom kev sib txuas yuav tsum tau txuas nrog, cov khoom sib txuas sib txuas tuaj yeem tsim tau, piv txwv li: BNC rau N-hom connector, thiab lwm yam.
4. Attenuation Performance index:
Attenuation indicators muaj ntau yam uas yuav tsum tau, feem ntau yog cov nram qab no yam: attenuation raug, muaj zog, yam ntxwv impedance, kev ntseeg, repeatability, thiab lwm yam.
Raws li tus tsim ntawmcov attenuators, Jingxin tuaj yeem pab txhawb koj nrog ntau hom attenuators raws li koj qhov kev daws teeb meem RF.
Post lub sij hawm: Dec-20-2021
