I-analyzer yenethiwekhi ye-vector inemisebenzi emininzi kwaye yaziwa ngokuba "yinkosi yezixhobo".Yi-multimeter kwicandelo lerediyo yerediyo kunye ne-microwave, kunye nesixhobo sovavanyo lwamandla ombane we-electromagnetic wave.
Abahlalutyi bothungelwano bokuqala balinganisa i-amplitude kuphela.Aba bahlalutyi benethiwekhi ye-scalar banokulinganisa ilahleko yokubuya, inzuzo, umlinganiselo wamaza okuma, kunye nokwenza ezinye imilinganiselo ye-amplitude-based.Kule mihla, uninzi lwabahlalutyi benethiwekhi ngabahlalutyi benethiwekhi ye-vector, enokulinganisa i-amplitude kunye nesigaba ngaxeshanye.I-Vector network analyzer luhlobo lwesixhobo esisetyenziswa ngokubanzi, esinokubonisa iiparamitha ze-S, i-impedance yomdlalo onzima, kunye nomlinganiselo kwi-domain yexesha.
Iisekethe zeRF zifuna iindlela zovavanyo ezizodwa.Kunzima ukulinganisa amandla ombane kunye nokusebenza ngokuthe ngqo kwi-frequency ephezulu, ke xa kusenziwa umlinganiselo wezixhobo zamaza ombane aphezulu, kufuneka ziphawulwe ngokusabela kwazo kwiimpawu zeRF.Umhlalutyi womnatha unokuthumela isignali eyaziwayo kwisixhobo, kwaye emva koko ulinganise isignali yegalelo kunye nomqondiso wokuphuma kwinani elimiselweyo ukuqonda ukubonakaliswa kwesixhobo.
I-Network analyzer ingasetyenziselwa ukuphawula izixhobo zerediyo (RF).Nangona kuphela iiparamitha ze-S zilinganiswe ekuqaleni, ukwenzela ukuba zibe phezulu kwisixhobo phantsi kovavanyo, i-analyzer yenethiwekhi yangoku iye yahlanganiswa kakhulu kwaye iqhubela phambili kakhulu.
Umzobo webhloko yokuqulunqa we-analyzer yenethiwekhi
Umzobo we-1 ubonisa umzobo webhloko yangaphakathi ye-analyzer yenethiwekhi.Ukuze ugqibezele uvavanyo lweempawu zokudluliselwa / ukubonakalisa inxalenye evavanyiweyo, i-analyzer yenethiwekhi ibandakanya:;
1. Umthombo wophawu lovuselelo;Ukubonelela ngesignali yegalelo lokuvuselela inxalenye evavanyiweyo
2. Isixhobo sokwahlula isignali, kubandakanywa isahluli samandla kunye nesixhobo sokudibanisa umkhombandlela, sikhupha igalelo kunye nezibonakaliso ezibonakalisiweyo zecandelo elivavanyiweyo ngokulandelanayo.
3. Umamkeli;Uvavanya ukubonakalisa, ukuhanjiswa kunye neempawu zegalelo zenxalenye evavanyiweyo.
4. Ukwenziwa kweyunithi yokubonisa;Inkqubo kwaye ubonise iziphumo zovavanyo.
Uphawu lokudluliselwa ngumlinganiselo ohambelanayo wesiphumo secandelo elivavanyiweyo kwi-excitation yegalelo.Ukugqiba olu vavanyo, i-analyzer yenethiwekhi kufuneka ifumane isignali yokuvuselela igalelo kunye nolwazi lwesignali yesiphumo senxalenye evavanyiweyo ngokulandelelanayo.
Umthombo womqondiso wangaphakathi we-analyzer yenethiwekhi unoxanduva lokuvelisa iimpawu zokuvuselela ezihlangabezana novavanyo kunye neemfuno zamandla.Imveliso yomthombo wesignali ihlulwe kwiimpawu ezimbini ngokusebenzisa isahluli samandla, enye ingena ngokuthe ngqo kwi-R receiver, kwaye enye igalelo kwi-port ehambelanayo yokuvavanya inxalenye evavanyiweyo ngokutshintsha.Ngoko ke, uvavanyo lwe-R receiver lufumana ulwazi lwesignali elinganisiweyo.
Isibonakaliso sokuphuma kwecandelo elivavanyiweyo lingena kummkeli B we-analyzer yenethiwekhi, ngoko ke umamkeli B unokuvavanya ulwazi lwesignali yemveliso yecandelo elivavanyiweyo.I-B/R luphawu lokudlulisela phambili lwenxalenye evavanyiweyo.Xa uvavanyo lwe-reverse lugqityiwe, utshintsho lwangaphakathi lwe-analyzer yenethiwekhi luyafuneka ukulawula ukuhamba komqondiso.
Ixesha lokuposa: Jan-13-2023