Lub kav hlau txais xov tooj cua dual-polarized tuaj yeem xa thiab tau txais cov nthwv dej electromagnetic polarized kab rov tav thiab ntsug thaum khaws qhov chaw tsis hloov pauv, yog li qhov yuam kev ntawm qhov chaw ntawm lub cev los ntawm kev hloov qhov chaw ntawm lub kav hlau txais xov kom ua tau raws li qhov yuav tsum tau ua ntawm kev hloov pauv polarization raug tshem tawm, thiab yog li qhov tseeb ntawm lub cev tuaj yeem txhim kho. Lub kav hlau txais xov tooj cua dual-polarized muaj qhov zoo ntawm kev nce siab, kev coj ua zoo, kev rho tawm polarization siab, muaj peev xwm fais fab siab, thiab lwm yam, thiab tau kawm thiab siv dav. Lub kav hlau txais xov dual-polarized tuaj yeem txhawb nqa linear polarization, elliptical polarization thiab circular polarization waveforms.
Hom Kev Ua Haujlwm:
| Hom Txais |
| • Thaum lub antenna tau txais ib qho linearly polarized vertical waveform, tsuas yog lub qhov rooj ntsug thiaj li tau txais nws, thiab lub qhov rooj kab rov tav raug cais tawm. • Thaum lub antenna tau txais ib qho linearly polarized horizontal waveform, tsuas yog lub qhov rooj kab rov tav thiaj li tau txais nws, thiab lub qhov rooj ntsug raug cais tawm. • Thaum lub kav hlau txais xov tau txais lub elliptical lossis circular 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 circular polarization (LHCP) lossis sab xis-tes circular polarization (RHCP) ntawm lub waveform, yuav muaj 90-degree theem lagging lossis nce qib ntawm cov chaw nres nkoj. Yog tias lub waveform yog perfectly circularly polarized, lub teeb liab amplitude los ntawm qhov chaw nres nkoj yuav zoo ib yam. Los ntawm kev siv lub hybrid coupler (90 degree) kom raug, cov khoom ntsug thiab cov khoom kab rov tav tuaj yeem ua ke los rov qab ua lub voj voog lossis elliptical waveform. |
| Hom Kev Xa Mus |
| • Thaum lub kav hlau txais xov pub los ntawm qhov chaw nres nkoj ntsug, nws xa cov duab kab ntsug polarization waveform. • Thaum lub kav hlau txais xov pub los ntawm qhov chaw nres nkoj kab rov tav, nws xa cov kab rov tav polarization waveform. • Thaum lub kav hlau txais xov pub rau cov chaw nres nkoj ntsug thiab kab rov tav los ntawm qhov sib txawv ntawm theem 90-degree, cov teeb liab sib npaug, LHCP lossis RHCP waveform raug xa mus raws li theem lagging lossis nce qib ntawm ob lub teeb liab. Yog tias qhov amplitudes ntawm ob lub chaw nres nkoj tsis sib npaug, elliptical polarization waveform raug xa mus. |
| Hom Kev Xa Mus |
| • Thaum lub kav hlau txais xov siv rau hauv hom xa thiab txais, vim yog kev sib cais ntawm cov chaw nres nkoj ntsug thiab kab rov tav, nws tuaj yeem xa thiab txais tib lub sijhawm. |
RF MISOmuaj ob series ntawm dual-polarized antennas, ib qho raws li quad-ridge qauv thiab lwm qhov raws li Waveguide Ortho-Mode Transducer (WOMT). Lawv tau qhia nyob rau hauv Daim Duab 1 thiab Daim Duab 2 feem.
Daim Duab 1 Lub kav hlau txais xov tooj cua dual-polarized quad-ridged
Daim Duab 2 Lub kav hlau txais xov tooj cua dual-polarized raws li WOMT
Qhov zoo sib xws thiab qhov sib txawv ntawm ob lub antennas tau qhia hauv Rooj 1. Feem ntau hais lus, lub antenna raws li lub qauv quad-ridge tuaj yeem npog qhov bandwidth ua haujlwm dav dua, feem ntau ntau dua li octave band, xws li 1-20GHz thiab 5-50GHz. Nrog rau cov txuj ci tsim qauv zoo heev thiab cov txheej txheem ua tiav siab,RF MISOLub kav hlau txais xov ultra-wideband dual-polarized tuaj yeem ua haujlwm rau cov zaus siab ntawm millimeter nthwv dej. Lub bandwidth ua haujlwm ntawm WOMT-based antennas raug txwv los ntawm lub bandwidth ua haujlwm ntawm waveguide, tab sis nws qhov nce, qhov dav ntawm lub teeb, sab lobes thiab kev sib cais polarization / chaw nres nkoj-rau-chaw nres nkoj tuaj yeem zoo dua. Tam sim no ntawm kev ua lag luam, feem ntau cov kav hlau txais xov dual-polarized raws li WOMT tsuas muaj 20% ntawm lub bandwidth ua haujlwm thiab tsis tuaj yeem npog cov zaus waveguide txheem. Lub kav hlau txais xov dual-polarized WOMT-based tsim los ntawmRF MISOtuaj yeem npog tag nrho cov zaus waveguide, lossis hla lub octave band. Muaj ntau tus qauv xaiv los ntawm.
Rooj 1 Kev sib piv ntawm cov kav hlau txais xov ob sab
| Khoom | Quad-ridge Based | Raws li WOMT |
| Hom Kav hlau txais xov | Lub Horn Voj Voog Los Yog Rectangular | Txhua Hom |
| Kev Ua Haujlwm Bandwidth | Ultra-dav Band | Waveguide bandwidth lossis Extended Frequency WG |
| Tau Txais | 10 txog 20dBi | Yeem xaiv tau, txog li 50dBi |
| Cov Qib Sab Lobe | 10 txog 20dB | Qis dua, nyob ntawm hom antenna |
| Bandwidth | Ntau yam dav hauv Kev Ua Haujlwm bandwidth | Ruaj khov dua hauv cov band tag nrho |
| Kev rho tawm polarization hla | 30dB Ib txwm | Siab, 40dB Ib txwm |
| Kev rho tawm ntawm qhov chaw nres nkoj mus rau qhov chaw nres nkoj | 30dB Ib txwm | Siab, 40dB Ib txwm |
| Hom Chaw Nres Nkoj | Coaxial | Coaxial los yog waveguide |
| Lub zog | Qis | Siab |
Lub kav hlau txais xov quad-ridge dual-polarized horn yog tsim rau cov ntawv thov uas qhov ntsuas ntau yam nthuav dav ntau lub waveguide zaus bands, thiab muaj qhov zoo ntawm ultra-wideband thiab kev sim 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 waveguide probe, lens horn, scalar horn, corrugated horn, corrugated feed horn, Gaussian antenna, dish antenna, thiab lwm yam. Ntau yam antennas tsim rau txhua qhov kev siv system tuaj yeem tau txais.RF MISOmuaj peev xwm muab tau ib lub voj voog mus rau lub voos xwmfab waveguide hloov module los tsim kom muaj kev sib txuas ncaj qha ntawm lub antenna nrog tus qauv voj voog waveguide interface thiab WOMT nrog lub square waveguide interface. Lub WOMT-based dual-polarization horn antennas uasRF MISOtuaj yeem muab tau raws li tau qhia hauv Rooj 2.
Rooj 2 Lub kav hlau txais xov ob sab raws li WOMT
| Hom kav hlau txais xov ob sab polarized | Cov yam ntxwv | Piv txwv |
| WOMT+Lub Tshuab Raj Txheem | •Muab cov qauv waveguide puv bandwidth thiab Extended Frequency WG bandwidth • Zaus npog txog li 220 GHz •Cov lobes sab qis • Cov nqi nce ntxiv xaiv tau ntawm 10, 15, 20, 25 dBi |
|
| WOMT + Corrugated Feed Horn | •Muab cov qauv waveguide puv bandwidth thiab Extended Frequency WG bandwidth • Zaus npog txog li 220 GHz •Cov lobes sab qis • Kev rho tawm polarization qis dua •Nce tus nqi ntawm 10 dBi |  |
Yog xav paub ntxiv txog antennas, thov mus saib:
Lub sijhawm tshaj tawm: Cuaj hlis-13-2024
