Kapangidwe ndi mfundo yogwirira ntchito ya chingwe cha coaxial

Monga tonse tikudziwa, chingwe cha coaxial ndi chingwe chotumizira ma burodibandi chotayika chochepa komanso kudzipatula kwambiri.Chingwe cha coaxial chimakhala ndi ma conductor awiri ozungulira olekanitsidwa ndi ma dielectric gaskets.Capacitance ndi inductance yogawidwa motsatira mzere wa coaxial idzapanga kugawanika kwapadera mu dongosolo lonse, lomwe ndi khalidwe la impedance.

Kutayika kokana pamodzi ndi chingwe cha coaxial kumapangitsa kuti kutayika ndi khalidwe limodzi ndi chingwecho zidziwike.Pansi pa kuphatikizika kwa zinthu izi, kutayika kwa chingwe cha coaxial potumiza mphamvu yamagetsi (EM) ndikocheperako kuposa kwa mlongoti pamalo aulere, komanso kusokoneza kumakhalanso kochepa.

(1) Kapangidwe

Zopangira chingwe cha coaxial zili ndi chotchinga chakunja choteteza.Zigawo zina zakuthupi zitha kugwiritsidwa ntchito kunja kwa chingwe cha coaxial kupititsa patsogolo chitetezo cha chilengedwe, kuthekera kwa EM kuteteza komanso kusinthasintha.Chingwe cha coaxial chitha kupangidwa ndi waya wolukidwa wolukidwa, komanso wosanjikiza mwanzeru, zomwe zimapangitsa chingwecho kukhala chosinthika komanso chosinthika, chopepuka komanso cholimba.Malingana ngati kondakitala wa cylindrical wa chingwe cha coaxial akusungabe concentricity, kupindika ndi kupatuka sikungakhudze magwiridwe antchito a chingwecho.Chifukwa chake, zingwe za coaxial nthawi zambiri zimalumikizidwa ndi zolumikizira za coaxial pogwiritsa ntchito makina amtundu wa screw.Gwiritsani ntchito wrench ya torque kuti muchepetse kulimba.

2） Mfundo yogwira ntchito

Mizere ya coaxial ili ndi mawonekedwe ofunikira okhudzana ndi ma frequency, omwe amatanthauzira momwe angagwiritsire ntchito kuya kwa khungu komanso kudulidwa pafupipafupi.Kuzama kwa khungu kumalongosola chodabwitsa cha ma frequency apamwamba omwe akufalikira motsatira mzere wa coaxial.Kukwera kwafupipafupi, ma elekitironi ambiri amakonda kusunthira kumtunda wa coaxial mzere.Khungu limapangitsa kuti pakhale kutentha kwambiri komanso kutentha kwa dielectric, zomwe zimapangitsa kutayika kwamphamvu pamzere wa coaxial.Pofuna kuchepetsa kutayika komwe kumachitika chifukwa cha khungu, chingwe cha coaxial chokhala ndi mainchesi akulu chingagwiritsidwe ntchito.

Mwachiwonekere, kuwongolera magwiridwe antchito a chingwe cha coaxial ndi njira yowoneka bwino, koma kukulitsa kukula kwa chingwe cha coaxial kumachepetsa kuchuluka kwa ma frequency omwe chingwe cha coaxial chingadutse.Pamene kutalika kwa mafunde a EM mphamvu kumadutsa njira yodutsa maginito a electromagnetic (TEM) ndikuyamba "kudumpha" motsatira mzere wa coaxial kupita ku transverse electric 11 mode (TE11), mafupipafupi odula chingwe cha coaxial adzapangidwa.Njira yatsopanoyi yafupipafupi imabweretsa mavuto.Popeza mawonekedwe atsopanowa amafalikira pa liwiro losiyana ndi mawonekedwe a TEM, amawonetsa ndikusokoneza chizindikiro cha TEM chotumizidwa kudzera mu chingwe cha coaxial.

Kuti tithetse vutoli, tiyenera kuchepetsa kukula kwa chingwe cha coaxial ndikuwonjezera mafupipafupi odulidwa.Pali zingwe za coaxial ndi zolumikizira coaxial zomwe zimatha kufikira ma frequency a millimeter wave - 1.85mm ndi 1mm coaxial zolumikizira.Ndizofunikira kudziwa kuti kuchepetsa kukula kwa thupi kuti kugwirizane ndi ma frequency apamwamba kumawonjezera kutayika kwa chingwe cha coaxial ndikuchepetsa mphamvu yopangira mphamvu.Vuto lina popanga zigawo zing'onozing'onozi ndikuwongolera mosamalitsa kulolerana kwamakina kuti muchepetse kuwonongeka kwakukulu kwamagetsi ndi kusintha kwa impedance pamzere.Kwa zingwe zokhala ndi chidwi kwambiri, zimawononga ndalama zambiri kuti mukwaniritse izi.