RF Cable Isingeniso
Ngokungeziwe ebangeni lefrikhwensi, isilinganiso samagagasi okuma, ukulahlekelwa kokufaka nezinye izici, ukukhethwa okufanele kwezingxenye zekhebula le-RF kufanele futhi kucabangele izici zemishini yekhebula, indawo yokusebenza kanye nezidingo zohlelo lokusebenza, ngaphezu kwalokho, izindleko nazo ziyisici esishintshashintsha njalo. .
Kuleli phepha, izinkomba ezihlukahlukene nokusebenza kwekhebula le-RF kuxoxwa ngazo ngokuningiliziwe.Kuzuzisa kakhulu ukwazi ukusebenza kwekhebula ekukhetheni umhlangano ongcono kakhulu wekhebula le-RF.
Ukukhetha ikhebula
Intambo ye-coaxial ye-Rf isetshenziselwa ukudlulisa amandla esignali ye-RF ne-microwave.Kuyisekethi yepharamitha esabalalisiwe ubude bayo bukagesi buwumsebenzi wobude bomzimba kanye nesivinini sokudlulisela, esihluke kakhulu kumjikelezo wefrikhwensi ephansi.
Izintambo ze-coaxial ze-RF zingahlukaniswa zibe izintambo eziqinile kancane nezinwebeka kancane, izintambo eziguquguqukayo ezilukiwe, kanye nezintambo ezinegwebu ngokomzimba.Izinhlobo ezahlukene zezintambo kufanele zikhethelwe izinhlelo zokusebenza ezahlukene.Izintambo eziqinile kancane neziguquguquka kancane zivame ukusetshenziselwa ukuxhuma ngaphakathi kwemishini;Emkhakheni wokuhlola nokulinganisa, izintambo eziguquguqukayo kufanele zisetshenziswe;Izintambo ezinegwebu zivame ukusetshenziswa ezinhlelweni zokuphakela kwe-antenna esiteshini.
Ikhebula eliqinile
Njengoba igama liphakamisa, lolu hlobo lwekhebula alugobi kalula lube yisimo.I-conductor yangaphandle yenziwe nge-aluminium noma ishubhu yethusi.Ukuvuza kwe-RF kuncane kakhulu (ngaphansi kuka -120dB) futhi inkulumo-mpikiswano edalwe ohlelweni ayinakwa.
Isici se-passive intermodulation yale khebula nayo ilungile kakhulu.Uma ufuna ukuyigoba ibe yisimo esithile, udinga umshini wokubumba okhethekile noma isikhunta semanuwali ukuze ukwenze.Ubuchwepheshe obunjalo bokucubungula obunzima ngokubuyisela ukusebenza okuzinzile kakhulu, ikhebula le-semi-rigid esebenzisa izinto eziqinile ze-polytetrafluoroethylene njengendlela yokugcwalisa, le nto inezici zokushisa ezinzile kakhulu, ikakhulukazi ngaphansi kwezimo eziphakeme zokushisa, inokuzinza kwesigaba esihle kakhulu.
Izintambo eziqinile kancane zibiza ngaphezu kwezintambo eziguquguquka kancane futhi zisetshenziswa kakhulu ezinhlelweni ezihlukene ze-RF ne-microwave.
Ikhebula elilukiwe elithambile
Ikhebuli eguqukayo ikhebula “yebanga lokuhlola”.Uma kuqhathaniswa nezintambo eziqinile futhi eziguquguquka kancane, izindleko zezintambo eziguquguqukayo zibiza kakhulu, ngoba izintambo eziguquguqukayo zenzelwe ukucabangela izici ezengeziwe.Ikhebula eliguqukayo kufanele libe lula ukugoba izikhathi eziningi futhi liqhubeke nokusebenza, okuyisidingo esiyisisekelo njengekhebula lokuhlola.Izinkomba zikagesi ezithambile nezinhle ziyi-pair of contradictions, kodwa futhi ziholela ezindlekweni zesizathu esiyinhloko.
Ukukhethwa kwezingxenye zekhebula le-RF eziguquguqukayo kufanele kucabangele izici ezihlukahlukene ngesikhathi esisodwa, futhi ezinye zalezi zici ziyaphikisana, isibonelo, intambo eyi-coaxial ene-coaxial conductor yangaphakathi enomucu owodwa inokulahlekelwa okuphansi kokufaka kanye nokuzinza kwe-amplitude lapho igoba kunentambo ye-coaxial enemicu eminingi. , kodwa ukusebenza kokuqina kwesigaba akukuhle njengalokhu kwakamuva.Ngakho-ke, ukukhethwa kwengxenye yekhebula, ngaphezu kwebanga lemvamisa, isilinganiso samagagasi okuma, ukulahlekelwa kokufaka nezinye izici, kufanele futhi kucabangele izici zemishini yekhebula, indawo yokusebenza kanye nezidingo zohlelo lokusebenza, ngaphezu kwalokho, izindleko nazo zihlala njalo. isici.
Isikhathi sokuthumela: Apr-19-2023
