Izici:
- Ukunemba okuphezulu
Ikhithi yokulinganisa ye-RF iyithuluzi elibalulekile lokuqinisekisa ukuthi i-vector network analyzer (VNA) namanye amathuluzi e-RF ahlinzeka ngokulinganisa okunembile kwendiza yokuhlola yamathuluzi.Ngenxa yokwanda okungokwemvelo kwesigaba kanye nezinguquko zokuthikamezeka ekuxhumekeni kwemishini yokuhlola ye-RF, izilinganiso ezenziwa nge-VNA ngaphandle kokulinganisa zizofaka amapharamitha we-S kanye nezici zesizinda sesikhathi sohlelo lokuhlola ukuxhumanisa.Ikhithi yokulinganisa isetshenziselwa ukuhlinzeka ngendiza eyinkomba eqala ekuxhumekeni kwe-DUT.Ngale ndlela, okokusebenza kokuhlola kwe-RF (ikakhulukazi i-VNA) kungenza ngokuzenzakalelayo imisebenzi eyinkimbinkimbi yokushumeka ngaphandle kwesidingo sokucubungula idatha eyengeziwe.
Ikhithi yokulinganisa ye-RF iyithuluzi elibalulekile lokuqinisekisa ukuthi i-vector network analyzer (VNA) namanye amathuluzi e-RF ahlinzeka ngokulinganisa okunembile kwendiza yokuhlola yamathuluzi.Ngenxa yokwanda okungokwemvelo kwesigaba kanye nezinguquko zokuthikamezeka ekuxhumekeni kwemishini yokuhlola ye-RF, izilinganiso ezenziwa nge-VNA ngaphandle kokulinganisa zizofaka amapharamitha we-S kanye nezici zesizinda sesikhathi sohlelo lokuhlola ukuxhumanisa.Ikhithi yokulinganisa isetshenziselwa ukuhlinzeka ngendiza eyinkomba eqala ekuxhumekeni kwe-DUT.Ngale ndlela, okokusebenza kokuhlola kwe-RF (ikakhulukazi i-VNA) kungenza ngokuzenzakalelayo imisebenzi eyinkimbinkimbi yokushumeka ngaphandle kwesidingo sokucubungula idatha eyengeziwe.
Ingxenye yesiyingi esifushane yekhithi yokulinganisa isetshenziselwa "ukujikeleza kancane" amandla akhiqizwa futhi akhishwe yi-VNA, kuyilapho ingxenye yesekethe evulekile iwukuphela komugqa wokudlulisela onganqamuki ongavumeli ukuhlangana kanye nemisebe evela ngaphandle. imvelo.
Umthwalo wekhithi yokulinganisa usetshenziselwa ukufanisa i-impedance yolayini wokudlulisela kanye nokuvinjelwa kwembobo ye-VNA kanye nemishini ehloliwe.
I-adaptha eqondile iyi-adaptha elula exhuma izimbobo ezimbili zekhithi yokulinganisa, futhi ayibonakali ngenxa yomgomo wayo wokuklama wokuba seduze nolayini wokudlulisela ofanele ngangokunokwenzeka.Ikhithi yokulinganisa ihlanganisa izixhumi ezijwayelekile ze-coaxial ezinosayizi abahlukahlukene, esivame kakhulu isixhumi sohlobo lwe-N.
Ngenxa yezinhlobonhlobo zemishini ehloliwe namakhebuli angama-coaxial, amakhithi e-adaptha anembayo ayisisekeli esibaluleke kakhulu sekhithi yokulinganisa.Kuma-adaptha anjalo, kufanele abe nekhwalithi ephezulu.
QualwaveInc. ihlinzeka ngamakhithi okulinganisa ngezinhlobo ezahlukene ukuze kuhlangatshezwane nezidingo zamakhasimende.