Hiki i ka antenna horn ʻelua-polarized ke hoʻouna a loaʻa i nā nalu electromagnetic horizontally polarized a me ka vertically polarized i ka wā e mālama ana i ke kūlana kūlana ʻaʻole i hoʻololi ʻia, no laila ua hoʻopau ʻia ka hewa o ka hoʻololi ʻana i ke kūlana antenna i mea e hoʻokō ai i nā koi o ka hoʻololi polarization. i hiki ke hoʻomaikaʻi i ka pololei o ka ʻōnaehana. Loaʻa i ka antenna ʻelua-polarized horn ka pōmaikaʻi o ka loaʻa kiʻekiʻe, alakaʻi maikaʻi, hoʻokaʻawale polarization kiʻekiʻe, mana mana kiʻekiʻe, a me nā mea ʻē aʻe, a ua aʻo nui ʻia a hoʻohana ʻia. Hiki i ka antenna pālua-polarized ke kākoʻo i ka polarization linear, polarization elliptical a me nā nalu polarization circular.
ʻAno hana:
| ʻAno Loaʻa |
| • Ke loaa ka antenna i ka linearly polarized vertical waveform, hiki wale i ke awa kupapau ke loaa, a ua kaawale ka antenna. kaawale. • Ke loa'a ka antenna i ka nalu polarization elliptical a poepoe paha, e loa'a i na awa ku a me na awa ke ku a me ka pae o ka hoailona. Ma muli o ka polarization circular polarization (LHCP) a i ʻole ka polarization pōʻai ʻākau (RHCP) o ka nalu, aia kahi pae 90-degree e lohi ana a holomua paha ma waena o nā awa. Inā hoʻopololei maikaʻi ʻia ke ʻano nalu, e like nō ka amplitude hōʻailona mai ke awa. Me ka hoʻohana ʻana i kahi hui hui hybrid kūpono (90 degere), hiki ke hoʻohui ʻia ka ʻāpana kū a me ka ʻāpana e hoʻihoʻi i kahi ʻano nalu pōʻai a elliptical. |
| ʻAno hoʻouna |
| • Ke hānai ʻia ka antenna e kahi awa kū pololei, hoʻouna ia i ka nalu polarization line vertical. • Ke hānai ʻia ka antenna e ke awa ākea, hoʻouna ia i ka nalu polarization line horizontal. • Ke hāʻawi ʻia ka antenna i nā awa kū pololei a me nā awa e ka ʻokoʻa 90-degere, nā hōʻailona amplitude like, e hoʻouna ʻia ka nalu LHCP a i ʻole RHCP e like me ka pae lohi a holomua paha ma waena o nā hōʻailona ʻelua. Inā ʻaʻole like nā amplitudes hōʻailona o nā awa ʻelua, ua hoʻouna ʻia ka elliptical polarization waveform. |
| Ke ʻano hoʻololi |
| • Ke hoʻohanaʻia ka antenna i ka hoʻouna a me ka loaʻaʻana o keʻano, ma muli o ka hoʻokaʻawaleʻana ma waena o nā awa kū pololei a me ke ākea, hiki iā ia ke hoʻouna a loaʻa i ka manawa like. |
RF MISOhāʻawi i ʻelua pūʻulu o nā antenna ʻelua-polarized, hoʻokahi e pili ana i kahi hanana quad-ridge a ʻo kekahi e pili ana i kahi Waveguide Ortho-Mode Transducer (WOMT). Hōʻike ʻia lākou ma ka Figure 1 a me Figure 2.
Kiʻi 1 ʻAntenna puʻupuʻu ʻelua-polarized quad-ridged
Kiʻi 2 Dual-polarized horn antenna ma muli o WOMT
Hōʻike ʻia nā ʻano like a me nā ʻokoʻa ma waena o nā antenna ʻelua ma ka Papa 1. ʻO ka mea maʻamau, hiki i ka antenna e pili ana i ka hanana quad-ridge ke uhi i kahi bandwidth hana ākea, ʻoi aku ma mua o ka band octave, e like me 1-20GHz a me 5-50GHz. Me nā mākau hoʻolālā maikaʻi loa a me nā ʻano hana hoʻoponopono kiʻekiʻe,RF MISO'O ka ultra-wideband dual-polarized antenna hiki ke hana i nā alapine kiʻekiʻe o nā hawewe millimeter. ʻO ka bandwidth hana o nā antenna e pili ana i ka WOMT e kaupalena ʻia e ka bandwidth hana o ka nalu, akā ʻoi aku ka maikaʻi o kona loaʻa, ka laula kaola, nā lobes ʻaoʻao a me ka hoʻokaʻawale ʻana i ka polarization / port-to-port. I kēia manawa ma ka mākeke, ʻo ka hapa nui o nā antenna dual-polarized e pili ana iā WOMT he 20% wale nō o ka bandwidth hana a ʻaʻole hiki ke uhi i ka pahu alapine waveguide maʻamau. ʻO ka antenna pālua-polarized WOMT i hoʻolālā ʻia eRF MISOhiki ke uhi i ke alapine hawewe piha, a i ʻole ma luna o ka band octave. Nui nā hiʻohiʻona e koho ai.
Papa 1 Hoʻohālikelike o nā antenna ʻelua-polarized
| 'ikamu | Quad-ridge Based | Wahi a WOMT |
| ʻAno Antenna | Kiwi Poʻapuni a i ʻole Rectangular Horn | Nā ʻano a pau |
| Ka Bandwidth hana | Pānaʻi Ultra-ākea | Waveguide bandwidth a i ʻole WG i hoʻonui ʻia |
| Loaʻa | 10 a 20dBi | Koho, a hiki i 50dBi |
| Nā Kaupae ʻaoʻao | 10 a 20dB | Haʻahaʻa, pili i ke ʻano antenna |
| Bandwidth | Ka laulā ākea i loko o ka bandwidth hana | ʻOi aku ka paʻa i ka hui piha |
| Hoʻokaʻawale polarization keʻa | 30dB maʻamau | Kiʻekiʻe, 40dB Maʻamau |
| Hoʻokaʻawale ʻia ke awa i ke awa | 30dB maʻamau | Kiʻekiʻe, 40dB Maʻamau |
| ʻAno awa | Coaxial | Coaxial a i ʻole alakaʻi nalu |
| Ka mana | Haʻahaʻa | Kiʻekiʻe |
He kūpono ka antenna horn ʻelua-polarized quad-ridge no nā noi kahi i hoʻopaʻa ʻia ai ke ana ʻana i nā alapine waveguide lehulehu, a loaʻa iā ia nā pono o ka ultra-wideband a me ka hoʻāʻo wikiwiki. No nā antenna ʻelua-polarized e pili ana i WOMT, hiki iā ʻoe ke koho i nā ʻano antenna like ʻole, e like me ka conical horn, pyramid horn, open ended waveguide probe, lens horn, scalar horn, corrugated horn, corrugated feed horn, Gaussian antenna, dish antenna, etc. Hiki ke loaʻa nā ʻano antennas kūpono no kēlā me kēia noi ʻōnaehana.RF MISOhiki iā ia ke hāʻawi i kahi kōmike hoʻololi hoʻololi i ka hawewe ʻehā ʻehā e hoʻokumu i kahi pilina pololei ma waena o kahi antenna me ka interface alakaʻi nalu pōʻai maʻamau a me kahi WOMT me ka ʻaoʻao alakaʻi nalu. Ka WOMT-hoʻokumu 'elua-polarization horn antennasRF MISOhiki ke hāʻawi ʻia i hōʻike ʻia ma ka Papa 2.
Papa 2 Dual-polarized antenna ma muli o WOMT
| Nā ʻano antenna pālua-polarized | Nā hiʻohiʻona | Nā laʻana |
| WOMT+Kiwi maʻamau | • Hāʻawi i ke alakaʻi nalu maʻamau i ka bandwidth piha a me ka bandwidth WG Extended Frequency •Ka alapine e uhi ana a hiki i 220 GHz •Lobes aoao haahaa • Nā waiwai loaʻa koho o 10, 15, 20, 25 dBi |
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| WOMT+Kūnai Hanai ʻAi | • Hāʻawi i ke alakaʻi nalu maʻamau i ka bandwidth piha a me ka bandwidth WG Extended Frequency •Ka alapine e uhi ana a hiki i 220 GHz •Lobes aoao haahaa • kaawale polarization kea haahaa • Loaʻa nā waiwai o 10 dBi |  |
No ka ʻike hou aku e pili ana i nā antenna, e kipa:
Ka manawa hoʻouna: Sep-13-2024
