I ka honua antenna, aia ke kānāwai. When a verticallyantenna polarizedhoʻouna, hiki ke loaʻa wale ʻia e kahi antenna polarized vertically; ke hoʻouna ʻia kahi antenna polarized horizontally, hiki ke loaʻa iā ia e kahi antena polarized horizontally; i ka lima akauantenna polarized poepoehoʻouna, hiki ke loaʻa wale ʻia e ka antenna polarized polarized lima ʻākau; ke hoʻouna ʻia ka antenna polarized polarized lima hema, hiki ke loaʻa iā ia e ka antenna circularly polarized lima ʻākau; Hoʻouna ʻia ka antenna circularly polarized a hiki ke loaʻa wale ʻia e ka antenna polarized polarized lima hema.
RM-CPHA82124-20（8.2-12.4GHz)
RM-CPHA1840-12(18-40GHz)
RM-CPHA218-16(2-18GHz)
RFMISONā huahana antenna kiwi polarized
ʻO ka mea i kapa ʻia ʻo vertically polarized antenna e pili ana i ka nalu i hoʻokuʻu ʻia e ka antenna, a ʻo kāna kuhikuhi polarization ke kū pololei.
ʻO ke kuhikuhi polarization o ka nalu e pili ana i ke kuhikuhi o ka vector kahua uila.
No laila, ʻo ka ʻaoʻao polarization o ka nalu he kū pololei, ʻo ia hoʻi, ʻo ke kuhikuhi ʻana o ka vector kahua uila.
ʻO ia hoʻi, ʻo ka antenna polarized horizontally, ʻo ia hoʻi, ʻo ke kuhikuhi ʻana o nā nalu he paepae, ʻo ia hoʻi, ʻo ke kuhikuhi ʻana o ke kula uila o nā nalu āna e hoʻokuʻu ai ua like ia me ka honua.
ʻO ka polarization kūpaʻa a me ka polarization ākea 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 ʻana o nā māka uila i kahi kuhikuhi paʻa. Pa'a 'o ia ho'i 'a'ole e loli.
ʻO ka antenna circularly polarized e pili ana i ka polarization o ka nalu, ʻo ia hoʻi, ke kuhikuhi o ke kahua uila, e hoʻololi ana i ka wikiwiki angular w i ka wā e loli ai ka manawa.
No laila pehea e hoʻoholo ʻia ai ka polarization pōʻai lima hema a me ka lima ʻākau?
ʻO ka pane me kou mau lima.
Wehe i nā lima ʻelua i waho, me ke kuhikuhi ʻana o ko lākou manamana lima i ke ala o ka hoʻolaha ʻana o ka nalu, a laila e ʻike i nā manamana lima i kulou i ka ʻaoʻao like me ka polarization.
Inā like ka lima ʻākau, ʻo ia ka polarization lima ʻākau; inā like ka lima hema, he polarization ka lima hema.
Ma hope aʻe, e hoʻohana wau i nā formula e wehewehe iā ʻoe. E noʻonoʻo paha ʻelua mau hawewe polarized linearly.
ʻO kahi kuhikuhi polarization ʻo ia ka x kuhikuhi a ʻo ka amplitude ʻo E1; ʻO kahi kuhikuhi polarization ka ʻaoʻao y a ʻo ka amplitude ʻo E2; laha ka nalu ma ka aoao z.
ʻO ka hoʻohālikelike ʻana i nā nalu ʻelua, ʻo ka nui o ke kahua uila:
Mai ka papa i luna, nui nā mea hiki:
(1) E1≠0, E2=0, a laila ʻo ka ʻaoʻao polarization o ka nalu mokulele ʻo ka x-axis
(2) E1=0, E2≠0, a laila ʻo ka ʻaoʻao polarization o ka nalu mokulele ka axis y.
(3) Inā he mau helu maoli ʻo E1 a me E2 a ʻaʻole 0, a laila hoʻokumu ka ʻaoʻao polarization o ka hawewe mokulele i kēia kihi me ka axis-x:
(4) Inā loaʻa kahi ʻokoʻa ma waena o E1 a me E2, e like me ka hōʻike ʻana ma ke kiʻi ma lalo nei, hiki i ka nalu mokulele ke lilo i hawewe polarized polarized lima ʻākau a i ʻole he hawewe polarized polarized lima hema.
No nā antenna polarized vertically e loaʻa i 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? I ke kaʻina hana o ka hoʻopuka ʻana i ka polarization pōʻai, loaʻa iā ia ma ka superposing ʻelua polarizations linear me nā ʻokoʻa ʻāpana.
No ka ʻike hou aku e pili ana i nā antenna, e kipa:
Ka manawa hoʻouna: Mei-21-2024
