E mafai e le antenna horn dual-polarized ona fa'asalalau ma maua galu eletise fa'alava polarized ma fa'alava polarized a'o tausia pea le tulaga o le tulaga e le suia, ina ia mafai ai ona aveese le sese o le tulaga o le faiga e mafua mai i le suia o le tulaga o le antenna ina ia ausia ai mana'oga o le suiga o le polarization, ma ia mafai ai ona fa'aleleia le sa'o o le faiga. O le antenna horn dual-polarized e iai ona lelei o le maualuga o le gain, lelei le directivity, maualuga le polarization isolation, maualuga le malosiaga, ma isi mea, ma ua su'esu'eina ma fa'aaogaina lautele. E mafai e le antenna dual-polarized ona lagolagoina le linear polarization, elliptical polarization ma circular polarization waveforms.
Faiga Fa'agaoioiga:
| Faiga e Maua ai |
| • A maua e le antenna se galu fa'alava fa'atulagaina fa'asolosolo, e na'o le port fa'atulagaina e mafai ona mauaina, ma e vavae'ese le port fa'alava.• A maua e le antenna se galu fa'atulagaina fa'asolosolo, e na'o le port fa'alava e mafai ona mauaina, ma e vavae'ese le port fa'atulagaina. • A maua e le antenna se galu elliptical poʻo se circular polarization waveform, e maua e ports faʻatulagaina ma faʻalava vaega faʻatulagaina ma faʻalava o le faailoilo. E fuafua i le agavale-hand circular polarization (LHCP) poʻo le taumatau-hand circular polarization (RHCP) o le galu, o le a iai se 90-tikeri phase lagging poʻo le agai i luma i le va o ports. Afai o le galu e atoatoa le circular polarization, o le a tutusa le amplitude o le faailoilo mai le port. I le faʻaaogaina o se hybrid coupler talafeagai (90 tikeri), e mafai ona tuʻufaʻatasia le vaega faʻatulagaina ma le vaega faʻalava e toe faʻafoʻisia ai se galu faʻalava poʻo se elliptical waveform. |
| Faiga Fa'asalalau |
| • A fafaga le antenna e se port fa'atulagaina, e fa'asalalauina atu ai se laina fa'atulagaina o le polarization waveform. • A fafaga le antenna e le port faalava, e faasalalau atu ai le laina faalava o le polarization waveform. • A fafaga le antenna i ports fa'atulagaina ma fa'alava e ala i se eseesega o le phase e 90-tikeri, o fa'ailoilo tutusa le amplitude, o le LHCP po'o le RHCP waveform e fa'asalalauina e tusa ai ma le phase lagging po'o le agai i luma i le va o fa'ailoilo e lua. Afai e le tutusa le amplitudes o fa'ailoilo o ports e lua, o le elliptical polarization waveform e fa'asalalauina. |
| Faiga o le Fa'aliliuina |
| • A fa'aaogaina le antenna i le faiga e fa'asalalau ma talia ai, ona o le vavae'eseina i le va o uafu fa'atulagaina ma fa'alava, e mafai ona fa'asalalau ma talia i le taimi e tasi. |
RF MISOe ofoina atu ni faasologa se lua o antenna e lua-polarized, o le tasi e faʻavae i luga o se fausaga quad-ridge ma le isi e faʻavae i luga o se Waveguide Ortho-Mode Transducer (WOMT). O loʻo faʻaalia i le Ata 1 ma le Ata 2.
Ata 1 Antenna fa'a'ofu e lua-polarized quad-ridged
Ata 2 Antenna pu fa'a-polarized e fa'avae i luga o le WOMT
O mea e tutusa ai ma mea e eseese ai i le va o antenna e lua o loʻo faʻaalia i le Laulau 1. I se tulaga lautele, o le antenna e faʻavae i luga o le fausaga o le quad-ridge e mafai ona ufiufi se bandwidth faʻagaioiga lautele, e masani lava e sili atu nai lo le octave band, e pei o le 1-20GHz ma le 5-50GHz. Faatasi ai ma tomai mamanu sili ona lelei ma metotia faʻagasologa maualuga,RF MISOE mafai e le ultra-wideband dual-polarized antenna ona galue i le maualuga o le saoasaoa o galu milimita. O le bandwidth o galuega a antenna e faʻavae i luga o le WOMT e faʻatapulaʻaina e le bandwidth o galuega a le waveguide, ae o lona gain, beam width, side lobes ma le cross polarization/port-to-port isolation e mafai ona sili atu. O loʻo i ai nei i le maketi, o le tele o antenna e lua-polarized e faʻavae i luga o le WOMT e naʻo le 20% o le bandwidth o galuega ma e le mafai ona ufiufi le waveguide frequency band masani. O le antenna e lua-polarized e faʻavae i luga o le WOMT na mamanuina eRF MISOe mafai ona ufiufi le fusi fa'asolosolo atoa o le waveguide, pe sili atu fo'i i le fusi octave. E tele fa'ata'ita'iga e filifili mai ai.
Laulau 1 Fa'atusatusaga o antenna fa'a-polarized lua
| Mea | Fa'avae i luga o le Quad-ridge | Fa'avae i le WOMT |
| Ituaiga o le Antenna | Nifo Fa'ata'amilomilo po'o le Fa'atafafā | Ituaiga Uma |
| Bandwidth o Galuega | Fusi lautele tele | Lapo'a o le Waveguide po'o le Extended Frequency WG |
| Maua | 10 i le 20dBi | Filifiliga, e oo atu i le 50dBi |
| Tulaga o le Itu o le Lobe | 10 i le 20dB | Malalo, e fa'alagolago i le ituaiga antenna |
| Lapo'a o le uaea | Lautele le lautele i totonu o le bandwidth o le fa'agaioiga | Sili atu le mautu i le fusi atoa |
| Vaevae fa'alava | 30dB Masani | Maualuga, 40dB Masani |
| Vaevae o le uafu i le uafu | 30dB Masani | Maualuga, 40dB Masani |
| Ituaiga o le Uafu | Fa'atasi | Coaxial po'o le waveguide |
| Malosiaga | Maualalo | Maualuga |
O le quad-ridge dual-polarized horn antenna e fetaui lelei mo faʻaoga e aofia ai le tele o fusi o le waveguide, ma e iai foʻi ona lelei o le ultra-wideband ma le vave o le suʻega. Mo antenna dual-polarized e faʻavae i luga o le WOMT, e mafai ona e filifilia ituaiga eseese o antenna, e pei o le conical horn, pyramid horn, open ended waveguide probe, lens horn, scalar horn, corrugated horn, corrugated feed horn, Gaussian antenna, dish antenna, ma isi. E mafai ona maua le tele o antenna e talafeagai mo soʻo se faʻaoga o le polokalama.RF MISOe mafai ona tuʻuina atu se vaega fesuiaʻiga o le waveguide faataamilomilo i le faatafafā e faʻatuina ai se fesoʻotaʻiga tuusaʻo i le va o se antenna ma le fesoʻotaʻiga masani o le waveguide faataamilomilo ma se WOMT ma le fesoʻotaʻiga o le square waveguide. O antenna lua-polarization horn e faʻavae i luga o le WOMT leaRF MISOmea e mafai ona tuʻuina atu o loʻo faʻaalia i le Laulau 2.
Laulau 2 Antenna fa'a-polarized e fa'avae i luga o le WOMT
| Ituaiga o le antenna e lua-polarized | Fa'aaliga | Faʻataʻitaʻiga |
| WOMT+Pū Masani | •Tu'uina atu o le bandwidth atoa o le waveguide masani ma le bandwidth o le Extended Frequency WG •E oo atu i le 220 GHz le televave •Lobes i itu maualalo •Tau fa'aopoopo o le gain e 10, 15, 20, 25 dBi |
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| WOMT+Faga Fafaga Fa'apalapala | •Tu'uina atu o le bandwidth atoa o le waveguide masani ma le bandwidth o le Extended Frequency WG •E oo atu i le 220 GHz le televave •Lobes i itu maualalo •Fa'aesea maualalo mai le fa'alava o le koluse •Tau o le maua o le 10 dBi |  |
Mo nisi fa'amatalaga e uiga i antenna, fa'amolemole asiasi i le:
Taimi na lafoina ai: Setema-13-2024
