RF coaxial umuhuza nigice cyumuhuza wa elegitoronike kandi n'umurima ushyushye.Ibikurikira, injeniyeri wa Cankemeng bazakora umwuga wo kumenya ubumenyi bwa RF coaxial umuhuza.
Incamake ya RF coaxial ihuza:
Umuhuza wa Coaxial, (Abantu bamwe nabo babyita umuhuza wa RF cyangwa umuhuza wa RF. Mubyukuri, umuhuza wa RF ntabwo uhwanye neza na coaxial umuhuza. Umuhuza wa RF yashyizwe muburyo bwo gukoresha inshuro zikoreshwa, mugihe umuhuza wa coaxial yashyizwe mubikorwa kuva imiterere yumuhuza Ibitekerezo gakondo, RF bivuga icyiciro cya MHz. Muri iki gihe, umuhuza wa coaxial ukoreshwa mu murima wa microwave Mu cyiciro cya GHz, ijambo "RF" ryakoreshejwe igihe cyose kandi rihuza ijambo "microwave"), akaba ari ishami ryabahuza.Hariho ibintu bitandukanye kandi bitandukanye hagati yabahuza.Ihuza rya Coaxial rifite imiyoboro yimbere ninyuma yo hanze.Imiyoboro y'imbere ikoreshwa muguhuza umurongo wibimenyetso.Umuyoboro wo hanze ntabwo ari umugozi wubutaka wumurongo wibimenyetso gusa (bigaragarira hejuru yimbere yumuyoboro winyuma), ahubwo unagira uruhare mukurinda umurima wa electromagnetique (ukingira kwivanga kwimbere yimbere ya electromagnetiki yimbere hanze unyuze imbere ubuso bwumuyoboro winyuma, no gukingira intera yumuriro wa electromagnetique yo hanze imbere imbere unyuze hejuru yinyuma yumuyoboro winyuma), Iyi mikorere itanga umuhuza wa coaxial umwanya munini nibyiza byubatswe.Ubuso bwinyuma bwubuyobozi bwimbere hamwe nubuso bwimbere bwubuyobozi bwinyuma bwumuhuza wa coaxial ni ubusanzwe bwa silindrike - mubihe bidasanzwe, akenshi bisabwa kugirango bikosorwe kandi bifite umurongo uhuriweho, bityo bita coaxial connectors.Muburyo butandukanye bwo guhererekanya imirongo, insinga ya coaxial ikoreshwa cyane kubera ibyiza byayo (imiterere yoroshye, gukoresha umwanya muremure, gukora byoroshye, gukora neza cyane…), bikavamo gukenera guhuza insinga ya coaxial, hamwe na coaxial umuhuza.Bitewe nibyiza byimiterere ya coaxial, gukomeza kuranga inzitizi ziranga (coaxial) ihuza (ugereranije nabandi bahuza) byizewe byoroshye, kwivanga no kwivanga (EMI) biri hasi cyane, kandi igihombo cyohereza ni gito, nuko rero ni Byakoreshejwe Byonyine muri Radiyo Imirongo na microwave.Kuberako ikoreshwa rwose mumurongo mwinshi, bimwe mubikorwa byamashanyarazi biratandukanye nibindi bihuza
Imikorere yimikorere ya RF coaxial umuhuza
Imikorere y'amashanyarazi ya RF coaxial ihuza igomba kuba nko kwagura umugozi wa RF coaxial, cyangwa ingaruka ku kimenyetso cyatanzwe zigomba kugabanuka mugihe umuhuza wa coaxial uhujwe numuyoboro wa coaxial.Kubwibyo, ibiranga impedance hamwe na voltage ihagaze igereranya ni ibipimo byingenzi byerekana umuhuza wa RF coaxial.Ibiranga inzitizi yumuhuza igena ubwoko bwa impedance ya kabili ihujwe nayo Umuvuduko wa voltage uhagaze ugereranije urwego ruhuza umuhuza.
A. Inzitizi iranga: ikintu cyihariye kiranga umurongo woherejwe ugenwa nubushobozi hamwe nubushake bwumurongo wogukwirakwiza, byerekana ikwirakwizwa ryumuriro wamashanyarazi na magneti mumurongo wohereza.Igihe cyose uburyo bwo guhererekanya umurongo buringaniye, ibiranga impedance birahoraho.Mugihe cyo kohereza imiraba, E / H ihoraho.Umurongo wohereza ubwawo ugena inzitizi ziranga, kandi impedance iranga ni imwe hose kumurongo wohereza.Intsinga ya coaxial cyangwa umuhuza wa coaxial, inzitizi iranga igenwa na diametre yimbere yumuyobora hanze, diameter yo hanze yumuyoboro wimbere hamwe na dielectric ihoraho yikigereranyo hagati yimbere yimbere ninyuma.Hariho umubano wuzuye ukurikira.
B. Coefficient de la reaction: igipimo cya voltage yagaragajwe na voltage yinjira.Kurenza agaciro, imbaraga nke zigaragazwa, niko guhuza neza, niko bigenda byegereza impedance, kandi nibyiza gukomeza
C. Umuvuduko uhagaze wumubyigano: hazabaho ubwoko bubiri bwumuraba ukwirakwiza kumurongo woherejwe udahuye, umwe ni ibyabaye naho ubundi ni umuraba ugaragara.Ahantu hamwe, ubwoko bubiri bwumuraba burenze.Imiraba irenze urugero ntabwo ikwirakwiza kumurongo wohereza, ariko irahagarara.Muyandi magambo, burigihe hariho voltage ntarengwa cyangwa ntoya kuri indege iyo ari yo yose.Imiraba nkiyi yitwa imiraba ihagaze.VSWR ni ikigereranyo cyumubare winjiza voltage nuwagaragajwe na voltage itandukanya itandukaniro ryinjiza na voltage igaragara.Agaciro karenze cyangwa kangana na 1, ntoya nziza, kandi ifite isano iri hamwe na coefficient de reaction.
Igihe cyo kohereza: Gashyantare-18-2023