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Definisyon: Ayeryen entrain moun ki pote vòltaj siyal ak elektrisite siyal yo konpare, rele enpedans a D 'nan ayeryen. Antre enpedans gen rezisteur HEFT rin ak reaktans HEFT Xin, sètadi Zin = rin + J Xin. Egzistans lan nan reaktans HEFT ka diminye ayeryen yo dwe opoze soti nan liy nan fè yon prezan nan ekstraksyon la ki gen pouvwa siyal, kòmsadwa, dwe fè reaktans HEFT se osi lwen ke posib 0, repons fè enpedans a D 'nan ayeryen se rezisteur pi bon kalite osi lwen ke posib savwa. An reyalite, menm si konsepsyon, debugs trè byen antèn, yon pwa reaktans ti kras toujou toujou ki genyen yo dwe vo nan enpedans opinyon li yo.
Estrikti a ki entrain enpedans ak antèn, dimansyon epi l ap travay wavelengh ki konsène, mwatye semmetry mete sipò moute pitit li se antèn ki pi enpòtan debaz yo, enpedans opinyon li yo yo dwe 42.5 (nan j nan + nan Zin = 73.1). Yo ta dwe diminye longè li yo (3 ~ 5) lè%, ka elimine nan mitan yo reaktans HEFT, fè enpedans a D 'nan ayeryen se rezisteur pi bon kalite, kounye a enpedans opinyon se Zin = 73.1 (Ewòp), (nominal 75). Atansyon, di entèdi, enpedans nan opinyon ayeryen nan fè sèks rezisteur pi bon kalite se siy karaktè frekans sèlman.
tanpri Klike la a jwenn antèn dipol nou
Fè yo wè fortwit, mwatye kantite lajan yo mete sipò moute enpedans opinyon timoun se mwatye semmetry mete sipò moute quadruple pitit, sètadi Zin = 280 (), (nominal 300 Ewòp). Enteresan an se, nan swa antèn, moun ki toujou ka debogaj nan enpedans ayeryen, andedan limit ki nan frekans k ap travay nan kondisyon an, depatman an vid ki fè enpedans opinyon se anpil ti ak depatman se reyèl fèmen nan 50 Ewòp byen, fè kidonk enpedans a D ' nan ayeryen se Ewòp nan Zin = rin = 50 ----- Sa a se ayeryen kapab nan bon enpedans matche ak plas ak liy nan fè yon prezan nan dwe.
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es.fmuser.org
it.fmuser.org
fr.fmuser.org
de.fmuser.org
af.fmuser.org -> Afriken
sq.fmuser.org -> Albanyen
ar.fmuser.org -> Arab
hy.fmuser.org -> Armenian
az.fmuser.org -> Azerbaydjan
eu.fmuser.org -> Basque
be.fmuser.org -> Belarisyen
bg.fmuser.org -> Bulgarian
ca.fmuser.org -> Katalan
zh-CN.fmuser.org -> Chinwa (senplifye)
zh-TW.fmuser.org -> Chinwa (Tradisyonèl)
hr.fmuser.org -> Kwoasyen
cs.fmuser.org -> Czech
da.fmuser.org -> Danwa
nl.fmuser.org -> Olandè
et.fmuser.org -> Estonyen
tl.fmuser.org -> Filipino
fi.fmuser.org -> Finnish
fr.fmuser.org -> Franse
gl.fmuser.org -> Galisyen
ka.fmuser.org -> Georgian
de.fmuser.org -> Alman
el.fmuser.org -> Greek
ht.fmuser.org -> Kreyòl ayisyen
iw.fmuser.org -> ebre
hi.fmuser.org -> Hindi
hu.fmuser.org -> Hungarian
is.fmuser.org -> Icelandic
id.fmuser.org -> Endonezyen
ga.fmuser.org -> Ilandè
it.fmuser.org -> Italyen
ja.fmuser.org -> Japonè
ko.fmuser.org -> Koreyen
lv.fmuser.org -> Latvian
lt.fmuser.org -> Lithuanian
mk.fmuser.org -> Masedwan
ms.fmuser.org -> Malay
mt.fmuser.org -> Maltese
no.fmuser.org -> Norwegian
fa.fmuser.org -> Pèsik
pl.fmuser.org -> Polonè
pt.fmuser.org -> Pòtigè
ro.fmuser.org -> Romanian
ru.fmuser.org -> Ris
sr.fmuser.org -> Sèb
sk.fmuser.org -> Slovak
sl.fmuser.org -> Slovenian
es.fmuser.org -> Panyòl
sw.fmuser.org -> Swahili
sv.fmuser.org -> Syèd
th.fmuser.org -> Thai
tr.fmuser.org -> Tik
uk.fmuser.org -> Ikrenyen
ur.fmuser.org -> Oudou
vi.fmuser.org -> Vietnamese
cy.fmuser.org -> Welsh
yi.fmuser.org -> Yiddish
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