Amakuru - Ihame ryo kunguka antene, uburyo bwo kubara inyungu ya antenne

Kunguka kwa Antenna bivuga inyungu zikwirakwizwa na antenne mu cyerekezo runaka ugereranije na antenna nziza.Yerekana ubushobozi bwimirasire ya antenne muburyo bwihariye, ni ukuvuga kwakira ibimenyetso cyangwa gusohora kwa antene muri icyo cyerekezo.Iyo antenne yungutse, niko antenne ikora muburyo bwihariye kandi irashobora kwakira cyangwa kohereza ibimenyetso neza.Inyungu ya Antenna ikunze kugaragara muri decibels (dB) kandi nikimwe mubimenyetso byingenzi byo gusuzuma imikorere ya antene.

Ibikurikira, nzagutwara kugirango wumve amahame shingiro yo kunguka antene nuburyo bwo kubara inyungu za antene, nibindi.

1. Ihame ryo kunguka antene

Mu buryo bw'igitekerezo, inyungu ya antenne ni igipimo cyubucucike bwikimenyetso cyakozwe na antenne nyirizina hamwe na antenne nziza yinkomoko nziza kumwanya runaka mumwanya munsi yububasha bumwe bwo kwinjiza.Igitekerezo cya antenna yinkomoko yavuzwe hano.Niki?Mubyukuri, ni antenne abantu batekereza gusohora ibimenyetso kimwe, kandi imishwarara yerekana ibimenyetso ni urwego rukwirakwijwe.Mubyukuri, antene ifite imirasire yunguka icyerekezo (nyuma yiswe imirasire).Ikimenyetso hejuru yimirasire kizakomera kuruta agaciro k’imirasire ya antenna ya theoretical point source, mugihe imirasire yikimenyetso mubindi byerekezo iba ifite intege nke.Kugereranya hagati yagaciro nyako nagaciro keza hano ni inyungu ya antenne.

Ishusho yerekanaRM-SGHA42-10icyitegererezo cyibicuruzwa Kunguka amakuru

Birakwiye ko tumenya ko antenne ya pasiporo ikunze kugaragara nabantu basanzwe ntabwo yongerera imbaraga zo kohereza gusa, ahubwo inatwara imbaraga zo kohereza.Impamvu ituma bifatwa nkigifite inyungu ni ukubera ko izindi nzira zitangwa, icyerekezo cyimirasire yibanze, kandi igipimo cyo gukoresha ibimenyetso kikaba cyiza.

2. Kubara inyungu za antenne

Inyungu ya Antenna mubyukuri igereranya urwego rwimirasire yibintu byingufu zidafite umugozi, kubwibyo bifitanye isano rya bugufi nimiterere ya antenna.Muri rusange imyumvire ni uko igufi nini nini kandi ntoya kuruhande rwimishwarara ya antenna, niko inyungu nyinshi.Nigute ushobora kubara inyungu ya antenne?Kuri antenne rusange, formula G (dBi) = 10Lg {32000 / (2θ3dB, E × 2θ3dB, H)} irashobora gukoreshwa mukugereranya inyungu zayo.formula,
2θ3dB, E na 2θ3dB, H nubugari bwibiti bya antenne ku ndege ebyiri nyamukuru;32000 ni imibare ifatika.

None se bisobanuye iki niba 100mw itumanaho idafite insinga ifite antenne yunguka + 3dbi?Ubwa mbere, hindura imbaraga zo kohereza mubimenyetso byunguka dbm.Uburyo bwo kubara ni:

100mw = 10lg100 = 20dbm

Noneho ubare imbaraga zose zohereza, zingana numubare wo kohereza imbaraga ninyungu za antenne.Uburyo bwo kubara nuburyo bukurikira:

20dbm + 3dbm = 23dbm

Hanyuma, imbaraga zingana zo kohereza zongeye kubarwa kuburyo bukurikira:

10 ^ （23/10） ≈200mw

Muyandi magambo, antenna yunguka + 3dbi irashobora gukuba kabiri imbaraga zingana zohereza.

3. Kunguka antene

Antenne ya ruswa yacu isanzwe idafite umugozi ni antenne zose.Imirasire yacyo iri hejuru yindege itambitse kuri antenne, aho imirasire yunguka cyane, mugihe imirasire iri hejuru no hepfo ya antenne iracika intege cyane.Nibyiza nko gufata bati ya signal no kuyitondekanya gato.

Inyungu ya Antenna ni "shaping" yikimenyetso gusa, kandi ingano yinyungu yerekana igipimo cyo gukoresha ibimenyetso.

Hariho na antenne isanzwe isanzwe, ubusanzwe ni antenne yerekeza.Imirasire yacyo iri ahantu hasa nabafana imbere yisahani, kandi ibimenyetso mubindi bice byacitse intege rwose.Nibyiza nko kongeramo urumuri kumatara.

Muri make, antenne yunguka cyane ifite ibyiza byurwego rurerure kandi rwiza rwibimenyetso, ariko bigomba kwigomwa imirasire mubyerekezo byihariye (mubisanzwe byangiritse).Antenne yunguka make muri rusange ifite intera nini yerekeza ariko intera ngufi.Iyo ibicuruzwa bidafite umugozi biva mu ruganda, ababikora muri rusange babishyiraho ukurikije imikoreshereze.

Ndashaka gusaba ibindi bicuruzwa bya antenne bifite inyungu nziza kuri buri wese ：