Wararka

Waqtiga: 2021-09-02

Wejiga dhacdada iyo mowjado ka tarjumaya meel isku mid ah, xajmiga korantada ee wadarta xajmiga ugu sarreeya ee Vmax, samaynta antinodes; Dhacdadii iyo hirarka muuqda ee wejiga ka soo horjeeda marka loo eego baaxadda korantada maxalliga ah waxaa lagu dhimay baaxadda korantada ugu yar Vmin, samaynta noodhka. Qiimaha baaxadda kale ee dhibic kasta waa inta u dhaxaysa antinodes iyo noodka u dhexeeya. Hirarkan synthetic waxa loo yaqaan saf taagan. SWR waa baaxadda mawjada taagan ee cadaadiska codka ee caloosha Vmax iyo noode marka loo eego baaxadda cadaadiska codka Vmin. Tuubada mawjada taagan, VSWR la qiyaasay, walxaha nuugista dhawaaqa waxaa laga heli karaa isbahaysiga milicsiga iyo nuugista.

Isgaadhsiinta raadiyaha, impedance anteenadu isma dhigma quudiyaha ama anteenada gudbiyaha isma dhigma, tamarta-soo noqnoqda sare waxay soo saari doontaa milicsi laalaaban, iyo qaybta hore ee faragelinta mowjadda taagan waxay dhacdaa isku dhafan. Si loo qeexo loona cabbiro sifooyinka VSWR ee nidaamka anteenada, taas oo ah, anteenada mawjada hore iyo mawjada muuqata, waxay dejisay fikradda "SWR",

SWR = R / r = (1 + K) / (1-K)

Isku-dheellitirnaanta milicsiga K = (Rr) / (R + r)

(K waa qiime taban oo tilmaamaya in wajiga ka soo horjeeda)

Halka R iyo r ay ku jiraan impedance-ka soo-saarka iyo impedance-ga soo-gelinta. Marka labada qiyamka sida impedance, in si fiican u dhigma , hufnaanta milicsiga K waxay la mid tahay 0, VSWR waa 1. Tani waa xaalad ku habboon, dhab ahaantii, had iyo jeer waxaa ka muuqda, si saamiga mawjada taagan had iyo jeer ka weyn yahay 1.

Is-waafajinta nidaamka RF. Fiiro gaar ah in danab ee Bo Bida in shuruudaha qaarkood, maxaa yeelay, marka aad isticmaasho kala duwan ee soo noqnoqoshada broadband waa mid aad u ballaaran, ratio taagan mawjada taagan isbedel doonaa inta jeer, waa in ay suurtogal ka dhigi isbarbardhig ballaaran oo ballaaran.

VSWR macnaheedu waa: VSWR waa qiime tiro ah oo ka dhigan th

Waxaan sidoo kale u habeyn karnaa qaybaha rf dadban sida waafaqsan shuruudahaaga. Waxaad geli kartaa bogga habaynta si aad u bixiso qeexitaannada aad u baahan tahay.
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