Dual-polarized horn kav hlau txais xov tuaj yeem xa thiab tau txais kab rov tav polarized thiab vertically polarized electromagnetic nthwv dej thaum ua kom txoj hauj lwm hauv lub xeev tsis hloov, kom lub cev txoj hauj lwm sib txawv ntawm qhov yuam kev tshwm sim los ntawm kev hloov lub kav hlau txais xov txoj hauj lwm kom ua tau raws li qhov xav tau ntawm kev hloov polarization raug tshem tawm, thiab kom qhov tseeb qhov system tuaj yeem txhim kho. Lub kav hlau txais xov dual-polarized horn muaj qhov zoo ntawm kev nce siab, zoo directivity, siab polarization cais, muaj peev xwm muaj zog, thiab lwm yam, thiab tau txais kev kawm dav thiab siv. Lub kav hlau txais xov dual-polarized tuaj yeem txhawb cov kab polarization, elliptical polarization thiab ncig polarization waveforms.
Kev ua haujlwm hom:
| Txais hom |
| • Thaum lub kav hlau txais xov tau txais cov kab hluav taws xob polarized ntsug waveform, tsuas yog qhov chaw nres nkoj ntsug tuaj yeem tau txais, thiab qhov chaw nres nkoj kab rov tav yog cais tawm. cais. • Thaum lub kav hlau txais xov tau txais elliptical lossis ncig polarization waveform, cov chaw nres nkoj ntsug thiab kab rov tav tau txais cov khoom ntsug thiab kab rov tav ntawm lub teeb liab, raws li. Nyob ntawm sab laug-tes ncig polarization (LHCP) los yog sab xis-tes ncig polarization (RHCP) ntawm lub waveform, yuav muaj 90-degree theem lagging lossis nce qib ntawm cov chaw nres nkoj. Yog hais tias lub waveform yog zoo kawg nkaus ncig polarized, lub teeb liab amplitude los ntawm qhov chaw nres nkoj yuav zoo ib yam. Los ntawm kev siv ib qho zoo (90 degree) hybrid coupler, cov khoom ntsug thiab kab rov tav tuaj yeem ua ke kom rov ua tau ib lub voj voog lossis elliptical waveform. |
| Hloov hom |
| • Thaum lub kav hlau txais xov yog pub los ntawm qhov chaw nres nkoj ntsug, nws xa cov kab ntsug polarization waveform. • Thaum lub kav hlau txais xov yog pub los ntawm qhov chaw nres nkoj kab rov tav, nws xa cov kab rov tav polarization waveform. • Thaum lub kav hlau txais xov yog pub rau cov chaw nres nkoj ntsug thiab kab rov tav los ntawm 90-degree theem sib txawv, sib npaug amplitude signals, LHCP lossis RHCP waveform yog kis raws li theem lagging lossis nce qib ntawm ob lub teeb liab. Yog hais tias lub teeb liab amplitudes ntawm ob qhov chaw nres nkoj tsis sib npaug, lub elliptical polarization waveform yog kis. |
| Hloov hom |
| • Thaum lub kav hlau txais xov siv nyob rau hauv hom kis tau tus mob thiab txais, vim yog kev sib cais ntawm cov chaw nres nkoj ntsug thiab kab rov tav, nws tuaj yeem xa thiab tau txais tib lub sijhawm. |
RF MISOmuaj ob series ntawm dual-polarized kav hlau txais xov, ib tug raws li ib tug quad-ridge qauv thiab lwm yam raws li ib tug Waveguide Ortho-Mode Transducer (WOMT). Lawv tau pom nyob rau hauv daim duab 1 thiab daim duab 2 feem.
Daim duab 1 Dual-polarized quad-ridged horn kav hlau txais xov
Daim duab 2 Dual-polarized horn kav hlau txais xov raws li WOMT
Qhov zoo sib xws thiab qhov sib txawv ntawm ob lub kav hlau txais xov muaj nyob rau hauv Table 1. Feem ntau hais lus, lub kav hlau txais xov raws li cov qauv quad-ridge tuaj yeem npog qhov kev khiav hauj lwm bandwidth, feem ntau yog ntau tshaj li octave band, xws li 1-20GHz thiab 5-50GHz. Nrog rau kev tsim qauv zoo tshaj plaws thiab cov txheej txheem ua haujlwm siab,RF MISO's ultra-wideband dual-polarized kav hlau txais xov tuaj yeem ua haujlwm rau qhov siab zaus ntawm millimeter nthwv dej. Kev khiav hauj lwm bandwidth ntawm WOMT-raws li kav hlau txais xov yog txwv los ntawm kev khiav hauj lwm bandwidth ntawm lub waveguide, tab sis nws nce, beam dav, sab lobes thiab cross polarization / chaw nres nkoj-rau-chaw nres nkoj cais yuav zoo dua. Tam sim no nyob rau hauv kev ua lag luam, feem ntau dual-polarized kav hlau txais xov raws li WOMT tsuas muaj 20% ntawm kev khiav hauj lwm bandwidth thiab tsis tuaj yeem npog tus qauv waveguide zaus band. WOMT-based dual-polarized kav hlau txais xov tsim los ntawmRF MISOtuaj yeem npog tag nrho waveguide zaus band, lossis dhau ntawm octave band. Muaj ntau yam qauv xaiv los ntawm.
Table 1 Kev sib piv ntawm dual-polarized kav hlau txais xov
| Yam khoom | Quad-ridge Based | WOMT Based |
| Antenna Hom | Circular or Rectangular Horn | Txhua Hom |
| Ua haujlwm Bandwidth | Ultra-wide Band | Waveguide bandwidth lossis Extended Frequency WG |
| Tau txais | 10 mus rau 20dBi | Yeem, mus txog 50dBi |
| Sab Lobe Qib | 10 mus rau 20dB | qis, kav hlau txais xov hom nyob ntawm |
| Bandwidth | Ntau yam hauv Kev Ua Haujlwm bandwidth | Ntau ruaj khov nyob rau hauv tag nrho band |
| Hla polarization cais | 30dB Ib txwm | Siab, 40dB Hom |
| Chaw nres nkoj rau qhov chaw nres nkoj cais | 30dB Ib txwm | Siab, 40dB Hom |
| Hom Chaw nres nkoj | Coaxial | Coaxial los yog waveguide |
| Hwj chim | Tsawg | Siab |
Lub quad-ridge dual-polarized horn kav hlau txais xov yog tsim rau cov ntawv thov uas qhov ntsuas ntsuas tau nthuav dav ntau lub waveguide zaus bands, thiab muaj qhov zoo ntawm ultra-wideband thiab ntsuas ceev. Rau cov kav hlau txais xov dual-polarized raws li WOMT, koj tuaj yeem xaiv ntau hom kav hlau txais xov, xws li conical horn, pyramid horn, qhib kawg waveguide sojntsuam, lens horn, scalar horn, corrugated horn, corrugated pub horn, Gaussian kav hlau txais xov, phaj kav hlau txais xov, thiab lwm yam. Ntau yam ntawm cov kav hlau txais xov tsim nyog rau txhua daim ntawv thov system tuaj yeem tau txais.RF MISOtuaj yeem muab lub voj voog mus rau lub voj voos waveguide hloov pauv los tsim kom muaj kev sib txuas ncaj qha ntawm tus kav hlau txais xov nrog tus qauv voj voog waveguide interface thiab WOMT nrog square waveguide interface. WOMT-based dual-polarization horn antennas uasRF MISOtuaj yeem muab tau qhia hauv Table 2.
Table 2 Dual-polarized kav hlau txais xov raws li WOMT
| Dual-polarized kav hlau txais xov hom | Nta | Piv txwv |
| WOMT +Standard Horn | • Muab tus qauv waveguide tag nrho bandwidth thiab Extended Frequency WG bandwidth •Frequency npog txog 220 GHz • Sab lobes qis •Optional nce tus nqi ntawm 10, 15, 20, 25 dBi |
|
| WOMT + Corrugated Feed Horn | • Muab tus qauv waveguide tag nrho bandwidth thiab Extended Frequency WG bandwidth •Frequency npog txog 220 GHz • Sab lobes qis • Tsawg cross polarization cais • Tau txais txiaj ntsig ntawm 10 dBi |  |
Yog xav paub ntxiv txog antennas, thov mus saib:
Post lub sij hawm: Sep-13-2024
