Hiki i ka antenna pepeiaohao polarized pālua ke hoʻouna a loaʻa i nā nalu electromagnetic polarized horizontal a me vertical polarized me ka mālama ʻana i ke kūlana kūlana i hoʻololi ʻole ʻia, i mea e hoʻopau ai i ka hewa ʻokoʻa kūlana ʻōnaehana i hoʻokumu ʻia e ka hoʻololi ʻana i ke kūlana antenna i mea e hoʻokō ai i nā koi o ka hoʻololi polarization, a i mea e hiki ai ke hoʻomaikaʻi i ka pololei o ka ʻōnaehana. Loaʻa i ka antenna pepeiaohao polarized pālua nā pono o ka loaʻa kiʻekiʻe, ka kuhikuhi maikaʻi, ka hoʻokaʻawale polarization kiʻekiʻe, ka mana mana kiʻekiʻe, a pēlā aku, a ua aʻo nui ʻia a hoʻohana ʻia. Hiki i ka antenna polarized pālua ke kākoʻo i ka polarization linear, ka polarization elliptical a me nā ʻano nalu polarization circular.
ʻAno Hana:
| ʻAno Loaʻa |
| • Ke loaʻa i ka antenna kahi nalu kū pololei linearly polarized, hiki i ka puka kū pololei ke loaʻa iā ia, a ua hoʻokaʻawale ʻia ke awa ākea. • Ke loaʻa i ka antenna kahi nalu kū pololei linearly polarized, hiki i ka puka ākea ke loaʻa iā ia, a ua hoʻokaʻawale ʻia ke awa kū pololei. • Ke loaʻa i ka antenna kahi nalu polarization elliptical a circular paha, loaʻa i nā awa kū pololei a me ka pae nā ʻāpana kū pololei a me ka pae o ka hōʻailona, pakahi. Ma muli o ka polarization circular hema (LHCP) a i ʻole ka polarization circular ʻākau (RHCP) o ka nalu, e loaʻa kahi pae 90-degere e lohi ana a i ʻole e holomua ana ma waena o nā awa. Inā polarized circularly kūpono ke ʻano o ka nalu, e like ka amplitude hōʻailona mai ke awa. Ma ka hoʻohana ʻana i kahi coupler hybrid kūpono (90 degere), hiki ke hoʻohui ʻia ka ʻāpana kū pololei a me ka ʻāpana pae e hoʻihoʻi i kahi nalu circular a elliptical paha. |
| ʻAno Hoʻoili |
| • Ke hānai ʻia ka antenna e kahi awa kū pololei, hoʻoili ia i kahi ʻano nalu polarization laina kū pololei. • Ke hānai ʻia ka antenna e ka puka ākea, hoʻoili ia i ke ʻano nalu polarization laina ākea. • Ke hānai ʻia ka antenna i nā awa kū pololei a me ka pae e kahi ʻokoʻa pae 90-degere, nā hōʻailona amplitude like, hoʻouna ʻia ke ʻano nalu LHCP a i ʻole RHCP e like me ka pae lohi a i ʻole ka holomua ma waena o nā hōʻailona ʻelua. Inā ʻaʻole like nā amplitudes hōʻailona o nā awa ʻelua, hoʻouna ʻia ke ʻano nalu polarization elliptical. |
| ʻAno Hoʻoili |
| • Ke hoʻohana ʻia ka antenna ma ke ʻano hoʻouna a me ka loaʻa ʻana, ma muli o ka hoʻokaʻawale ʻana ma waena o nā awa kū pololei a me ka pae, hiki iā ia ke hoʻouna a loaʻa i ka manawa like. |
RF MISOHāʻawi i ʻelua moʻo o nā antennas dual-polarized, hoʻokahi e pili ana i kahi ʻano quad-ridge a ʻo kekahi e pili ana i kahi Waveguide Ortho-Mode Transducer (WOMT). Hōʻike ʻia lākou ma ke Kiʻi 1 a me ke Kiʻi 2.
Kiʻi 1 Antenna pepeiaohao ʻehā-polarized pālua
Kiʻi 2 Antenna pepeiaohao pālua-polarized ma muli o WOMT
Ua hōʻike ʻia nā ʻano like a me nā ʻokoʻa ma waena o nā antenna ʻelua ma ka Papa 1. Ma ke ʻano laulā, hiki i ka antenna e pili ana i ka hoʻolālā quad-ridge ke uhi i kahi bandwidth hana ākea, ʻoi aku ka nui 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 kiʻekiʻe,RF MISOHiki i ka antenna dual-polarized ultra-wideband 's ke hana i nā alapine kiʻekiʻe o nā nalu millimeter. Ua kaupalena ʻia ka bandwidth hana o nā antennas e pili ana iā WOMT e ka bandwidth hana o ka waveguide, akā hiki ke ʻoi aku ka maikaʻi o kona loaʻa, ka laulā beam, nā lobes ʻaoʻao a me ka cross polarization/port-to-port isolation. I kēia manawa ma ka mākeke, ʻo ka hapa nui o nā antennas dual-polarized e pili ana iā WOMT he 20% wale nō o ka bandwidth hana a ʻaʻole hiki ke uhi i ka band alapine waveguide maʻamau. ʻO ka antenna dual-polarized e pili ana iā WOMT i hoʻolālā ʻia eRF MISOhiki ke uhi i ka hui alapine waveguide piha, a i ʻole ma luna o ka hui octave. Nui nā hiʻohiʻona e koho ai.
Papa 1 Hoʻohālikelike o nā antennas polarized pālua
| Mea | Ma muli o Quad-ridge | Ma muli o WOMT |
| ʻAno Antenna | Pepeiao Pōʻai a Huinahā paha | Nā ʻAno āpau |
| Ka laulā hana | ʻApana ākea loa | ʻO ka bandwidth Waveguide a i ʻole ka Frequency Extended WG |
| Loaʻa | 10 a 20dBi | Koho, a hiki i ka 50dBi |
| Nā Pae Lobe ʻAoʻao | 10 a 20dB | Haʻahaʻa, hilinaʻi i ke ʻano antenna |
| ʻO ka laulā | Ka laulā ākea i loko o ka bandwidth Hana | ʻOi aku ka paʻa ma ka hui piha |
| Hoʻokaʻawale polarization kea | 30dB Maʻamau | Kiʻekiʻe, 40dB Maʻamau |
| Kaʻawale ʻana o ke awa i ke awa | 30dB Maʻamau | Kiʻekiʻe, 40dB Maʻamau |
| ʻAno awa | Coaxial | Coaxial a i ʻole ke alakaʻi nalu |
| Mana | Haʻahaʻa | Kiʻekiʻe |
He kūpono ka antenna pepeiaohao ʻelua-polarized quad-ridge no nā noi kahi e uhi ai ka laulā ana i nā hui alapine waveguide he nui, a he mau pono o ka ultra-wideband a me ka hoʻāʻo wikiwiki. No nā antennas dual-polarized e pili ana iā WOMT, hiki iā ʻoe ke koho i nā ʻano antenna like ʻole, e like me ka pepeiaohao conical, ka pepeiaohao pyramid, ka probe waveguide open ended, ka pepeiaohao lens, ka pepeiaohao scalar, ka pepeiaohao corrugated, ka pepeiaohao hānai corrugated, ka antenna Gaussian, ka antenna kīʻaha, a pēlā aku. Hiki ke loaʻa nā ʻano antennas like ʻole i kūpono no kekahi noi ʻōnaehana.RF MISOhiki ke hāʻawi i kahi module hoʻololi waveguide pōʻai a i ʻole rectangular e hoʻokumu i kahi pilina pololei ma waena o kahi antenna me ka interface waveguide pōʻai maʻamau a me kahi WOMT me ka interface waveguide square. ʻO nā antenna pepeiaohao polarization pālua i hoʻokumu ʻia ma WOMT eRF MISOhiki ke hāʻawi ʻia e hōʻike ʻia ma ka Papa 2.
Papa 2 Antenna polarized pālua i hoʻokumu ʻia ma WOMT
| Nā ʻano antenna polarized pālua | Nā hiʻohiʻona | Nā Laʻana |
| WOMT+Pepeiao Maʻamau | • Ke hāʻawi nei i ka bandwidth piha o ka waveguide maʻamau a me ka bandwidth WG i hoʻonui ʻia •Uhi alapine (pinepine) a hiki i ka 220 GHz •Nā lobes ʻaoʻao haʻahaʻa •Nā waiwai loaʻa koho o 10, 15, 20, 25 dBi |
|
| WOMT+ʻŌwili Hānai ʻia | • Ke hāʻawi nei i ka bandwidth piha o ka waveguide maʻamau a me ka bandwidth WG i hoʻonui ʻia •Uhi alapine (pinepine) a hiki i ka 220 GHz •Nā lobes ʻaoʻao haʻahaʻa • Hoʻokaʻawale polarization kea haʻahaʻa •Nā waiwai loaʻa o 10 dBi |  |
No ka ʻike hou aku e pili ana i nā antennas, e kipa i ka pūnaewele:
Ka manawa hoʻouna: Sep-13-2024
