Canjin Coaxial shine isar da saƙon lantarki mai wucewa da ake amfani da shi don canza siginar RF daga wannan tasho zuwa wancan.Ana amfani da waɗannan maɓallai sosai a yanayin tafiyar da sigina waɗanda ke buƙatar babban mitoci, babban ƙarfi da babban aikin RF.Hakanan ana amfani da shi sau da yawa a cikin tsarin gwajin RF, kamar eriya, sadarwar tauraron dan adam, sadarwa, tashoshin tushe, na'urorin jirgin sama, ko wasu aikace-aikacen da ke buƙatar canza siginar RF daga wannan ƙarshen zuwa wancan.
Canja tashar jiragen ruwa
Lokacin da muke magana game da maɓalli na coaxial, sau da yawa muna cewa nPmT, wato, n pole m jefa, inda n shine adadin tashar shigarwa kuma m shine adadin tashar fitarwa.Misali, canjin RF mai tashar shigarwa guda ɗaya da tashar fitarwa guda biyu ana kiranta SPDT/1P2T.Idan maɓalli na RF yana da shigarwa ɗaya da fitowar 14, muna buƙatar zaɓar maɓalli na RF na SP14T.
Canja sigogi da halaye
Idan ana buƙatar kunna siginar tsakanin iyakar eriya biyu, nan da nan za mu iya sanin zaɓi SPDT.Ko da yake an rage iyakokin zaɓin zuwa SPDT, har yanzu muna buƙatar fuskantar sigogi da yawa da masana'antun ke bayarwa.Muna buƙatar karanta waɗannan sigogi a hankali da halaye, kamar VSWR, Ins.Loss, keɓewa, mitar, nau'in haɗin kai, ƙarfin wutar lantarki, ƙarfin lantarki, nau'in aiwatarwa, m, nuni, kula da kewaye da sauran sigogin zaɓi.
Mita da nau'in haɗin haɗi
Muna buƙatar ƙayyade kewayon mitar tsarin kuma zaɓi maɓallin coaxial da ya dace daidai da mitar.Matsakaicin mitar aiki na maɓalli na coaxial na iya kaiwa 67GHz, kuma nau'ikan maɓallan coaxial daban-daban suna da mitocin aiki daban-daban.Gabaɗaya, zamu iya yin hukunci akan mitar aiki na maɓallin coaxial bisa ga nau'in mai haɗawa, ko nau'in mai haɗawa yana ƙayyadadden kewayon mitar coaxial switch.
Don yanayin aikace-aikacen 40GHz, dole ne mu zaɓi mai haɗin 2.92mm.Ana amfani da masu haɗin SMA galibi a cikin kewayon mitar tsakanin 26.5GHz.Sauran masu haɗin da aka saba amfani da su, kamar N-head da TNC, suna iya aiki a 12.4GHz.A ƙarshe, mai haɗin BNC na iya aiki a 4GHz kawai.
DC-6/8/12.4/18/26.5 GHz: SMA connector
DC-40/43.5 GHz: 2.92mm mai haɗawa
DC-50/53/67 GHz: 1.85mm mai haɗawa
Ƙarfin wutar lantarki
A cikin aikace-aikacenmu da zaɓin na'urar, ƙarfin wuta yawanci shine madaidaicin maɓalli.Nawa ƙarfin da maɓalli zai iya jurewa yawanci ana ƙididdige shi ta hanyar ƙirar injina na sauyawa, kayan da aka yi amfani da su, da nau'in haɗin haɗi.Sauran abubuwan kuma suna iyakance ƙarfin wutar lantarki, kamar mita, zafin aiki da tsayi.
Wutar lantarki
Mun riga mun san yawancin maɓalli na maɓalli na coaxial switch, kuma zaɓin sigogi masu zuwa ya dogara gaba ɗaya akan zaɓin mai amfani.
Maɓallin coaxial ya ƙunshi naɗaɗɗen wutan lantarki da maganadisu, waɗanda ke buƙatar ƙarfin lantarki na DC don fitar da sauyawa zuwa hanyar RF daidai.Nau'in wutar lantarki da aka yi amfani da su don kwatancen canji na coaxial sune kamar haka:
Kewayon ƙarfin lantarki na Coil
Saukewa: 5VDC4-6
12VDC 13-17VDC
Saukewa: 24VDC20-28
Saukewa: 28VDC24-32
Nau'in Tuƙi
A cikin sauyawa, direban na'urar lantarki ce wacce ke sauya wuraren tuntuɓar RF daga wuri ɗaya zuwa wani.Ga mafi yawan musanya RF, ana amfani da bawul ɗin solenoid don yin aiki akan haɗin injin akan lambar sadarwar RF.Lokacin da muka zaɓi canji, yawanci muna fuskantar nau'ikan tuƙi guda huɗu daban-daban.
Rashin lafiya
Lokacin da ba a yi amfani da wutar lantarki na waje ba, tashar ɗaya koyaushe tana kunne.Ƙara wutar lantarki ta waje kuma canza don zaɓar tashar da ta dace;Lokacin da ƙarfin lantarki na waje ya ɓace, maɓallin zai canza ta atomatik zuwa tashar da aka saba gudanarwa.Sabili da haka, ya zama dole don samar da wutar lantarki ta DC mai ci gaba don ci gaba da sauyawa zuwa wasu tashar jiragen ruwa.
Latching
Idan maɓalli na latching yana buƙatar kula da yanayin sauyawa, yana buƙatar ci gaba da allurar halin yanzu har sai an yi amfani da wutar lantarki ta bugun bugun jini don canza yanayin sauyawa na yanzu.Saboda haka, Wurin Latching Drive zai iya kasancewa a cikin jihar ta ƙarshe bayan wutar lantarki ta ɓace.
Latching Self-off
Maɓallin yana buƙatar halin yanzu yayin aiwatar da sauyawa kawai.Bayan an gama sauyawa, akwai abin rufewa ta atomatik a cikin na'urar.A wannan lokacin, maɓalli ba shi da halin yanzu.Wato, tsarin sauyawa yana buƙatar ƙarfin lantarki na waje.Bayan aikin ya tsaya tsayin daka (aƙalla 50ms), cire ƙarfin lantarki na waje, kuma mai kunnawa zai kasance a kan tashar da aka ƙayyade kuma ba zai canza zuwa tashar asali ba.
Kullum Buɗewa
Wannan yanayin aiki SPNT yana aiki ne kawai.Ba tare da wutar lantarki mai sarrafawa ba, duk tashoshi masu sauyawa ba sa aiki;Ƙara wutar lantarki ta waje kuma canza don zaɓar tashar da aka ƙayyade;Lokacin da ƙarfin lantarki na waje ya yi ƙanƙanta, mai kunnawa zai koma yanayin cewa duk tashoshi ba sa gudanarwa.
Bambanci tsakanin Latching da Failsafe
An cire ikon sarrafa gazawar, kuma an canza mai sauyawa zuwa tashar da aka rufe;An cire wutar lantarki mai sarrafa Latching kuma ya kasance akan tashar da aka zaɓa.
Lokacin da kuskure ya faru kuma ƙarfin RF ya ɓace, kuma ana buƙatar zaɓin canji a cikin takamaiman tashoshi, ana iya la'akari da sauya Failsafe.Hakanan za'a iya zaɓar wannan yanayin idan ɗaya tashar tana amfani da ita kuma ɗayan tashar ba ta amfani da ita ba, saboda lokacin zabar tashar ta gama gari, mai kunnawa baya buƙatar samar da wutar lantarki da na yanzu, wanda zai iya inganta haɓakar wutar lantarki.
Lokacin aikawa: Dec-03-2022