I loko o ke ao antenna, aia kekahi kānāwai. Ke kū pololeiantenna polarizedhoʻouna, hiki ke loaʻa wale ʻia e kahi antenna polarized vertically; ke hoʻouna kahi antenna polarized horizontally, hiki ke loaʻa wale ʻia e kahi antenna polarized horizontally; ke ʻākau ka limaantenna polarized pōʻaike hoʻouna ʻia, hiki ke loaʻa wale ʻia e kahi antenna polarized circular lima ʻākau; ke hoʻouna ʻia kahi antenna polarized circular lima hema, hiki ke loaʻa wale ʻia e kahi antenna polarized circular lima ʻākau; ke hoʻouna nei ka antenna polarized circular a hiki ke loaʻa wale ʻia e kahi antenna polarized circular lima hema.
RM-CPHA82124-20（8.2-12.4GHz)
RM-CPHA1840-12 (18-40GHz)
RM-CPHA218-16(2-18GHz)
RFMISONā huahana antenna pepeiaohao polarized pōʻai
ʻO ka mea i kapa ʻia ʻo vertically polarized antenna e pili ana i ka nalu i hoʻopuka ʻia e ka antenna, a ʻo kona kuhikuhi polarization he kū pololei.
ʻO ke kuhikuhi polarization o ka nalu e pili ana i ke kuhikuhi o ka vector kahua uila.
No laila, ʻo ke kuhikuhi polarization o ka nalu he kū pololei, ʻo ia hoʻi ke kuhikuhi o ka vector kahua uila he kū pololei.
Pēlā nō, ʻo kahi antenna polarized horizontally ʻo ia hoʻi ke kuhikuhi o nā nalu he horizontal, ʻo ia hoʻi ke kuhikuhi o ke kahua uila o nā nalu āna e hoʻopuka ai ua like ia me ka honua.
ʻO ka polarization vertical a me ka polarization horizontal nā ʻano ʻelua o ka polarization linear.
ʻO ka mea i kapa ʻia ʻo linear polarization e pili ana i ka polarization o nā nalu, ʻo ia hoʻi, ke kuhikuhi o nā kiko o ke kahua uila i kahi kuhikuhi paʻa. ʻO ke ʻano paʻa ʻaʻole ia e loli.
ʻO ke antenna circularly polarized e pili ana i ka polarization o ka nalu, ʻo ia hoʻi, ke kuhikuhi o ke kahua uila, ka mea e wili ana ma ka wikiwiki angular like w i ka loli ʻana o ka manawa.
No laila pehea e hoʻoholo ʻia ai ka polarization pōʻai o ka lima hema a me ka lima ʻākau?
ʻO ka pane me kou mau lima.
E lawe i nā lima ʻelua i waho, me ko lākou mau manamana nui e kuhikuhi ana i ke kuhikuhi o ka laha ʻana o ka nalu, a laila e ʻike i nā manamana lima kūlou o ka lima e wili ana ma ke kuhikuhi like me ka polarization.
Inā like ka lima ʻākau, ʻo ia ka polarization lima ʻākau; inā like ka lima hema, ʻo ia ka polarization lima hema.
ʻO ka mea aʻe, e hoʻohana wau i nā haʻilula e wehewehe iā ʻoe. I kēia manawa, e manaʻo ʻoe he ʻelua mau nalu polarized linearly.
ʻO kekahi kuhikuhi polarization ke kuhikuhi x a ʻo ka amplitude ʻo E1; ʻo kekahi kuhikuhi polarization ke kuhikuhi y a ʻo ka amplitude ʻo E2; hoʻolaha nā nalu ʻelua ma ke kuhikuhi z.
Ke hoʻopili ʻia nā nalu ʻelua, ʻo ke kahua uila holoʻokoʻa:
Mai ke ʻano ma luna nei, nui nā mea hiki:
(1) E1≠0, E2=0, a laila ʻo ke kuhikuhi polarization o ka nalu mokulele ʻo ia ka axis-x
(2) E1=0, E2≠0, a laila ʻo ke kuhikuhi polarization o ka nalu mokulele ʻo ia ka y-axis
(3) Inā he mau helu maoli ʻo E1 a me E2 a ʻaʻole ʻo 0, a laila ʻo ke kuhikuhi polarization o ka nalu mokulele e hana i ke kihi penei me ka axis-x:
(4) Inā he ʻokoʻa pae ma waena o E1 a me E2, e like me ka mea i hōʻike ʻia ma ke kiʻi ma lalo nei, hiki i ka nalu mokulele ke lilo i nalu polarized poepoe ʻākau a i ʻole he nalu polarized poepoe hema.
No nā antennas polarized vertically e loaʻa nā nalu polarized vertically, a me nā antennas polarized horizontally e loaʻa nā nalu polarized horizontally, hiki iā ʻoe ke hoʻomaopopo iā ia ma ka nānā ʻana i ke kiʻi ma lalo nei.
Akā pehea e pili ana i nā nalu polarized circular? I ke kaʻina hana o ka loaʻa ʻana o ka polarization circular, loaʻa ia ma ka hoʻopili ʻana i ʻelua polarizations linear me nā ʻokoʻa pae.
No ka ʻike hou aku e pili ana i nā antennas, e kipa i ka pūnaewele:
Ka manawa hoʻouna: Mei-21-2024
