Mfundo ya vector network analyzer

Vector network analyzer ili ndi ntchito zambiri ndipo imadziwika kuti "mfumu ya zida".Ndi multimeter m'munda wa ma radio frequency ndi ma microwave, ndi zida zoyesera za mphamvu yamagetsi yamagetsi.

Oyesa ma network oyambilira amangoyesa matalikidwe.Ma scalar network analyzer amatha kuyeza kutayika kobwerera, kupindula, kuchuluka kwa mafunde, ndikuchita miyeso ina yotengera matalikidwe.Masiku ano, ma analyzer ambiri a network ndi vector network analyzers, omwe amatha kuyeza matalikidwe ndi gawo limodzi.Vector network analyzer ndi mtundu wa chida chomwe chimagwiritsidwa ntchito kwambiri, chomwe chimatha kuwonetsa magawo a S, machesi ovuta, komanso kuyeza munthawi yake.

Mabwalo a RF amafunikira njira zoyesera zapadera.Ndizovuta kuyeza ma voliyumu ndi ma frequency molunjika pama frequency apamwamba, kotero poyezera zida zama frequency apamwamba, ziyenera kudziwika ndi momwe amayankhira ma siginecha a RF.Netiweki analyzer imatha kutumiza chizindikiro chodziwika ku chipangizocho, kenako kuyeza chizindikiro cholowera ndi chizindikiro chotuluka mu chiŵerengero chokhazikika kuti muzindikire mawonekedwe a chipangizocho.

Network analyzer ingagwiritsidwe ntchito kuzindikiritsa zida zama radio frequency (RF).Ngakhale kuti magawo a S okha ndi omwe adayesedwa poyamba, kuti akhale apamwamba kuposa chipangizo chomwe chikuyesedwa, chowunikira chamakono chamakono chakhala chikuphatikizidwa kwambiri komanso chapamwamba kwambiri.

Chithunzi cha block block cha network analyzer

Chithunzi 1 chikuwonetsa mawonekedwe amkati a block block ya network analyzer.Kuti mumalize kuyesa / kuwunikira mawonekedwe a gawo loyesedwa, makina osanthula ma network akuphatikizapo:;

1. Gwero lazizindikiro zokomera;Perekani chizindikiro cholowetsa chosangalatsa cha gawo loyesedwa

2. Chida cholekanitsa ma siginecha, kuphatikiza chogawa mphamvu ndi cholumikizira cholowera, chimatulutsa zolowetsamo ndikuwonetsa zizindikiro za gawo loyesedwa motsatana.

3. Wolandira;Yesani zowunikira, zotumizira ndi zolowetsa za gawo loyesedwa.

4. Kukonzekera gawo lowonetsera;Pangani ndikuwonetsa zotsatira za mayeso.

The kufala khalidwe ndi chiŵerengero wachibale wa linanena bungwe la kuyesedwa kwa chikoka athandizira.Kuti amalize kuyesaku, wowunikira pa netiweki amayenera kupeza siginecha yosangalatsa komanso zidziwitso zotuluka za gawo loyesedwa motsatana.

Gwero lamkati la siginecha la network analyzer liri ndi udindo wopanga ma siginecha osangalatsa omwe amakwaniritsa kuchuluka kwa mayeso ndi zofunikira za mphamvu.Kutulutsa kwa gwero lachizindikiro kumagawidwa m'zidziwitso ziwiri kudzera pa chogawa mphamvu, chimodzi chomwe chimalowetsa mwachindunji R wolandila, ndipo chinacho chimalowetsedwa ku doko loyeserera la gawo loyesedwa kudzera pa switch.Chifukwa chake, kuyesa kwa R wolandila kumapeza chidziwitso cha siginecha yoyezedwa.

Chizindikiro chotuluka cha gawo loyesedwa chimalowa mwa wolandila B wa network analyzer, kotero wolandila B akhoza kuyesa chidziwitso cha chizindikiro cha gawo loyesedwa.B/R ndiye mawonekedwe opititsa patsogolo gawo loyesedwa.Kuyesa kwa reverse kukamalizidwa, chosinthira chamkati cha network analyzer chimafunika kuti chiwongolere kayendedwe ka siginecha.