Antenna mpi abụọ nwere polarized nwere ike izipu ma nata ebili mmiri electromagnetic nke nwere polarized na nke kwụ ọtọ ma na-eme ka ọnọdụ ọnọdụ ahụ ghara ịgbanwe agbanwe, nke mere na e wepụrụ njehie nkewa ọnọdụ sistemụ nke gbanwere ọnọdụ antenna iji mezuo ihe achọrọ maka mgbanwe polarization, nakwa ka e wee nwee ike imeziwanye izi ezi nke sistemụ ahụ. Antenna mpi abụọ nwere polarized nwere uru nke uru dị elu, ezigbo nduzi, ikewapụ polarization dị elu, ikike ike dị elu, wdg, a mụọla ma jiri ya mee ihe nke ukwuu. Antenna abụọ nwere polarization nwere ike ịkwado polarization linear, polarization elliptical na polarization waveforms gburugburu.
Ụdị ọrụ:
| Ụdị Nnata |
| • Mgbe antenna natara ụdị ebili mmiri kwụ ọtọ nke nwere oghere n'usoro, naanị ọdụ ụgbọ mmiri kwụ ọtọ nwere ike ịnweta ya, a na-ekewapụkwa ọdụ ụgbọ mmiri kwụ ọtọ. • Mgbe antenna natara ụdị ebili mmiri kwụ ọtọ nke nwere oghere n'usoro, naanị ọdụ ụgbọ mmiri kwụ ọtọ nwere ike ịnweta ya, a na-ekewapụkwa ọdụ ụgbọ mmiri kwụ ọtọ. • Mgbe antenna ahụ natara ụdị ebili mmiri nke elliptical ma ọ bụ okirikiri, ọdụ ụgbọ mmiri kwụ ọtọ na nke kwụ ọtọ na-enweta akụkụ kwụ ọtọ na nke kwụ ọtọ nke mgbaàmà ahụ, n'otu n'otu. Dabere na polarization gburugburu aka ekpe (LHCP) ma ọ bụ polarization gburugburu aka nri (RHCP) nke ụdị ebili mmiri ahụ, a ga-enwe usoro ogo 90 nke na-aga n'ihu ma ọ bụ na-aga n'ihu n'etiti ọdụ ụgbọ mmiri ahụ. Ọ bụrụ na ụdị ebili mmiri ahụ nwere polarization gburugburu zuru oke, oke mgbaàmà sitere na ọdụ ụgbọ mmiri ahụ ga-abụ otu. Site na iji njikọ ngwakọ kwesịrị ekwesị (ogo 90), enwere ike ijikọ akụkụ kwụ ọtọ na akụkụ kwụ ọtọ iji weghachi ụdị ebili mmiri okirikiri ma ọ bụ elliptical. |
| Ụdị Mgbasa |
| • Mgbe ọdụ ụgbọ mmiri kwụ ọtọ na-enye antenna ahụ nri, ọ na-ebufe usoro polarization nke ahịrị kwụ ọtọ. • Mgbe ọdụ ụgbọ mmiri kwụ ọtọ na-enye antenna ahụ nri, ọ na-ebufe usoro polarization nke ahịrị kwụ ọtọ. • Mgbe e tinyere antenna ahụ n'ọdụ ụgbọ mmiri kwụ ọtọ na nke kwụ ọtọ site na ọdịiche nke usoro ogo 90, akara nha nhata nke nha nhata, a na-ebufe ụdị ebili mmiri LHCP ma ọ bụ RHCP dịka oge nkwụsị ma ọ bụ ọganihu nke usoro dị n'etiti akara abụọ ahụ si dị. Ọ bụrụ na oke mgbaàmà nke ọdụ ụgbọ mmiri abụọ ahụ ahaghị nhata, a na-ebufe ụdị ebili mmiri polarization elliptical. |
| Ụdị Mgbanwe |
| • Mgbe ejiri antenna mee ihe n'ụdị nnyefe na nnata, n'ihi na e kewapụrụ ya n'etiti ọdụ ụgbọ mmiri kwụ ọtọ na nke kwụ ọtọ, ọ nwere ike izipu ma nata n'otu oge. |
RF MISOna-enye usoro antenna abụọ nwere polarized, otu dabere na nhazi quad-ridge ebe nke ọzọ dabere na Waveguide Ortho-Mode Transducer (WOMT). E gosiri ha na Foto 1 na Foto 2 n'otu n'otu.
Foto nke 1 Antenna mpi anọ nwere oghere abụọ nke nwere polarized
Foto nke 2 Antenna mpi abụọ nwere polarized dabere na WOMT
E gosiri myirịta na ọdịiche dị n'etiti antenna abụọ ahụ na Tebụl 1. N'ozuzu, antenna nke dabere na nhazi quad-ridge nwere ike ikpuchi bandwit ọrụ sara mbara, nke na-abụkarị karịa octave band, dịka 1-20GHz na 5-50GHz. Site na nkà imewe dị egwu na ụzọ nhazi dị elu,RF MISOAntenna nwere ike ịrụ ọrụ ruo ugboro ole na ole nke ebili mmiri milimita. Oke bandwidth nke antenna dabere na WOMT na-ejedebe site na bandwidth ọrụ nke waveguide, mana uru ya, obosara beam, lobes n'akụkụ na cross polarization/port-to-port isolation nwere ike ịdị mma karịa. Ugbu a n'ahịa, ọtụtụ antenna nwere polarized abụọ dabere na WOMT nwere naanị 20% nke bandwidth ọrụ ma enweghị ike ikpuchi bandwidth ọkọlọtọ nke waveguide. Antenna nwere polarized abụọ dabere na WOMT nke e mere site naRF MISOnwere ike ikpuchi eriri ugboro ugboro nke onye nduzi ebili mmiri zuru oke, ma ọ bụ karịa eriri octave. E nwere ọtụtụ ụdị ịhọrọ site na.
Tebụl 1 Ntụnyere nke antenna nwere polarized abụọ
| ihe | Dabere na Quad-ridge | Dabere na WOMT |
| Ụdị Antenna | Opi okirikiri ma ọ bụ akụkụ anọ | Ụdị Niile |
| Bandwit arụ ọrụ | Band sara mbara nke ukwuu | Bandwidth nduzi ma ọ bụ ugboro ole agbatịkwuru WG |
| Uru | 10 ruo 20dBi | Nhọrọ, ruo 50dBi |
| Ọkwa Lobe n'akụkụ | 10 ruo 20dB | Ala, dabere na ụdị antenna |
| Bandwit | Oke dị iche iche n'ime bandwit arụmọrụ | Nọgidesiri ike karịa na otu egwu zuru oke |
| Isochi nkewa nke obe | 30dB Nkịtị | Elu, 40dB Nkịtị |
| Mwepụ nkewa site na ọdụ ụgbọ mmiri gaa na ọdụ ụgbọ mmiri | 30dB Nkịtị | Elu, 40dB Nkịtị |
| Ụdị Ọdụ Ụgbọ Mmiri | Kọaksịl | Coaxial ma ọ bụ waveguide |
| Ike | Dị ala | Elu |
Antenna mpi abụọ nwere polarized nke nwere quad-ridge dabara adaba maka ngwa ebe oke nha ahụ na-agafe ọtụtụ eriri ugboro ebili mmiri, ma nwee uru nke ultra-wideband na nnwale ngwa ngwa. Maka antenna abụọ nwere polarized dabere na WOMT, ị nwere ike ịhọrọ ụdị antenna dị iche iche, dị ka mpi conical, mpi pyramid, nyocha waveguide mepere emepe, mpi lens, mpi scalar, mpi corrugated, mpi nri corrugated, antenna Gaussian, antenna efere, wdg. Enwere ike nweta ọtụtụ antenna dị iche iche dabara adaba maka ngwa sistemụ ọ bụla.RF MISOnwere ike inye modulu mgbanwe ebili mmiri gburugburu ruo akụkụ anọ iji guzobe njikọ kpọmkwem n'etiti antenna nwere interface ebili mmiri okirikiri ọkọlọtọ na WOMT nwere interface ebili mmiri square. Antenna mpi polarization abụọ dabere na WOMT nkeRF MISOegosiri na Tebụl 2.
Tebụl nke 2 Antenna nwere polarized abụọ dabere na WOMT
| Ụdị antenna abụọ nwere polar | atụmatụ | Ihe atụ |
| WOMT+Mpi ọkọlọtọ | • Inye ntuziaka ebili mmiri ọkọlọtọ zuru oke na bandwit WG ugboro ugboro gbatịpụrụ • Ugboro ole na-ekpuchi ruo 220 GHz • Ala akụkụ lobes •Uru uru nhọrọ nke 10, 15, 20, 25 dBi |
|
| WOMT+Mpi nri corrugated | • Inye ntuziaka ebili mmiri ọkọlọtọ zuru oke na bandwit WG ugboro ugboro gbatịpụrụ • Ugboro ole na-ekpuchi ruo 220 GHz • Ala akụkụ lobes •Mwepụ nkewa nke polarization dị ala • Nweta uru nke 10 dBi |  |
Iji mụtakwuo maka antenna, biko gaa na:
Oge ozi: Sep-13-2024
