I-waveguide (okanye i-wave guide) yintambo yokuhambisa i-tubular engenanto eyenziwe ngumqhubi olungileyo. Sisixhobo sokusasaza amandla ombane we-electromagnetic (ingakumbi ukuhambisa amaza ombane anobude bamaza ngokolandelelwano lweesentimitha) Izixhobo eziqhelekileyo (ingakumbi ukuhambisa amaza ombane anobude bamaza ngokolandelelwano lweesentimitha).
Ukukhetha ubungakanani besikhokelo soxande kufuneka kuthathelwe ingqalelo ezi zinto zilandelayo:
1. Waveguide ingxaki bandwidth
Ukuqinisekisa ukuba amaza ombane we-electromagnetic kuluhlu olunikiweyo anokusasaza kwimowudi ye-TE10 enye kwi-waveguide, ezinye iindlela zomyalelo ophezulu kufuneka zinqunyulwe, emva koko b.
2. Waveguide ingxaki umthamo wamandla
Xa usasaza amandla afunekayo, i-waveguide ayikwazi ukudiliza. Ukunyusa ngokufanelekileyo i-b kunokunyusa umthamo wamandla, ngoko ke i-b kufuneka ibe nkulu kangangoko.
3. Ukuthotywa kwe-waveguide
Emva kokuba i-microwave idlule kwi-waveguide, kuyathenjwa ukuba amandla akayi kulahleka kakhulu. Ukwandisa u-b kunokwenza ukuthomalalisa kuncinci, ngoko ke u-b kufuneka abe mkhulu kangangoko.
Ukuthathela ingqalelo izinto ezinomtsalane, ubungakanani be-waveguide yoxande bukhethwa ngokubanzi ngolu hlobo:
a=0.7λ, λ ngumgama-maza osikiweyo we TE10
b=(0.4-0.5)a
Uninzi lwamaza oxande luyilwe ngomyinge we-a:b=2:1, eyaziwa ngokuba zii-standard waveguides, ukwenzela ukuba umlinganiselo we-bandwidth we-2:1 ufikeleleke, oko kukuthi, umlinganiselo we-frequency ephezulu ukuya kwelona nqanaba lisezantsi le-cutoff. amaxesha amaninzi ngu-2:1. Ukuze kuphuculwe umthamo wamandla, i-waveguide ene-b>a/2 ibizwa ngokuba yi-waveguide ephezulu; ukwenzela ukunciphisa umthamo kunye nobunzima, i-waveguide kunye ne-b
Umlinganiselo ophezulu we-bandwidth onokuthi i-waveguide yesetyhula isasazeke yi-1.3601: 1, oko kukuthi, umlinganiselo weyona ndlela iphakamileyo ye-mode-mode frequency kwi-frequency cut-off frequency yi-1.3601: 1. I-frequency ekhuthazwayo yokusebenza ye-waveguide ye-rectangular yi-frequency 30% ngaphezu kwe-cutoff frequency kunye ne-5% ngaphantsi kwe-resecond mode cutoff frequency frequency. La maxabiso acetyiswayo athintela ukusasazwa rhoqo kumaza asezantsi kunye nokusebenza kwemultimode kumaza aphezulu.
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Ixesha lokuposa: Jun-12-2023
