Ntuziaka na-efegharị efegharị (ma ọ bụ ntuziaka ebili mmiri) bụ eriri nnyefe tubular oghere nke ejiri ezigbo onye nduzi mee. Ọ bụ ngwá ọrụ maka ịgbasa ume electromagnetic (karịsịa na-ebufe ebili mmiri electromagnetic na ogologo ebili mmiri n'usoro nke centimita) Ngwa ndị a na-ahụkarị (karịsịa na-ebufe ebili mmiri electromagnetic na ogologo ogologo n'usoro nke centimita).
Nhọrọ nke nha ebili mmiri akụkụ anọ kwesịrị ịtụle ihe ndị a:
1. Waveguide bandwit nsogbu
Iji hụ na ebili mmiri eletrọnịkị n'ime oke oge enyere nwere ike ịgbasa n'otu ọnọdụ TE10 na ebili mmiri, a ga-ebipụ usoro ndị ọzọ dị elu, wee b
2. Waveguide ike ikike nsogbu
Mgbe ị na-agbasa ike achọrọ, ntuziaka ebili mmiri enweghị ike ịgbaji. Ịbawanye b n'ụzọ kwesịrị ekwesị nwere ike ịbawanye ike ike, ya mere b kwesịrị ịdị ukwuu dịka o kwere mee.
3. Attenuation nke waveguide
Mgbe ngwa ndakwa nri gafere site na waveguide, a na-atụ anya na ike agaghị efu oke. Ịbawanye b nwere ike ime ka attenuation dị ntakịrị, ya mere b kwesịrị ịdị ukwuu dịka o kwere mee.
N'ịtụle ihe ndị na-adọrọ adọrọ, a na-ahọrọkarị nha nke ebili mmiri akụkụ anọ dịka:
a = 0.7λ, λ bụ ogologo ebili mmiri nke TE10
b= (0.4-0.5) a
A na-emepụta ọtụtụ ụzọ ebili mmiri akụkụ anọ nwere akụkụ nke a: b=2: 1, nke a maara dị ka ọkọlọtọ waveguides, nke mere na enwere ike nweta oke bandwidth nke 2: 1, ya bụ, nha nke ugboro kachasị elu na nkwụsị kacha ala. ugboro bụ 2:1. Iji meziwanye ikike ike, a na-akpọ waveguide na b>a / 2 elu waveguide; iji belata olu na ịdị arọ, ntuziaka wave na b
Oke bandwidth kacha elu nke okirikiri waveguide nwere ike ịgbasa bụ 1.3601: 1, ya bụ, oke nke otu ụdị kachasị elu ruo ugboro kacha ala bụ 1.3601: 1. Ugboro arụ ọrụ akwadoro maka ntuziaka ebili mmiri akụkụ anọ bụ ugboro 30% karịa ugboro mbelata yana 5% n'okpuru ọnọdụ mbelata nke abụọ kachasị elu. Ụkpụrụ ndị a tụrụ aro na-egbochi mgbasa ozi ugboro ugboro na obere ugboro yana ịrụ ọrụ multimode n'ogo dị elu.
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Oge nzipu: Jun-12-2023
