Labarai

Lokaci: 2021-09-02

Matakin lamarin da raƙuman da aka nuna a wuri ɗaya, girman ƙarfin lantarki na jimlar girman ƙarfin lantarki Vmax, suna samar da ƙwayoyin cuta; raƙuman da suka faru da kuma waɗanda aka nuna a mataki na gaba idan aka kwatanta da girman ƙarfin lantarki na gida an rage su zuwa mafi ƙarancin girman ƙarfin lantarki Vmin, samuwar ƙugiyar. Sauran ƙimar girma na kowane batu yana tsakanin ƙwayoyin cuta da ƙugiyar da ke tsakanin. Wannan ƙugiyar roba da ake kira tsaye a jere. SWR shine girman matsin lamba na tsaye na matsin lamba a ciki Vmax da ƙugiyar a rabo na girman matsin lamba na sauti Vmin. A cikin bututun raƙuman da ke tsaye, VSWR da aka auna, ana iya samun kayan shan sauti mai ma'ana da kuma ƙimar sha.

A cikin sadarwa ta rediyo, rashin daidaiton impedance na eriya da mai ciyarwa ko rashin daidaiton impedance na eriya mai watsawa, kuzari mai yawan mita zai samar da haske a naɗe, kuma ɓangaren gaba na tsangwama na tsayuwa yana faruwa haɗuwa. Domin a siffanta da auna halayen VSWR na tsarin eriya, wato, eriya ta raƙuman gaba da raƙuman da aka nuna, ta kafa manufar "SWR".

SWR = R / r = (1 + K) / (1-K)

Ma'aunin tunani K = (Rr) / (R + r)

(K shine ƙimar korau yana nuna cewa akasin haka matakin)

Inda R da r sune impedance na fitarwa da impedance na shigarwa. Idan dabi'u biyu a matsayin impedance, wannan ya dace daidai, ma'aunin tunani K yayi daidai da 0, VSWR shine 1. Wannan yanayi ne mai kyau, a zahiri, koyaushe ana nuna shi, don haka rabon raƙuman tsaye koyaushe ya fi 1 girma.

Daidaita tsarin impedance na RF. Kulawa ta musamman ga ƙarfin lantarki a cikin Bo Bida ga wasu buƙatu, saboda lokacin da kake amfani da kewayon mitar broadband yana da faɗi sosai, rabon raƙuman tsaye zai canza tare da mita, yakamata ya ba da damar daidaitawar impedance mai faɗi.

Ma'anar VSWR: VSWR ƙimar lamba ce da ke wakiltar th

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