He aha ka hana o kahi kānana antenna kaʻa
ʻO ka hana nui o ka kānana antenna kaʻa, ʻo ia ke kāohi i ka hoʻopilikia electromagnetic, hoʻomaikaʻi i ka maikaʻi o ke kamaʻilio ʻana a me ka lakio hōʻailona-a-walaʻau. Hoʻomaikaʻi ka kānana i ke kū'ē ʻana i ka hoʻopilikia hōʻailona a me ka lakio hōʻailona-a-walaʻau ma ka kānana ʻana i nā ʻāpana alapine i makemake ʻole ʻia, no laila e hōʻoiaʻiʻo ana i ke kūpaʻa a me ka hilinaʻi o nā ʻōnaehana kamaʻilio.
Hana kikoʻī
Youdaoplaceholder0 Kāohi i ka hoʻopilikia electromagnetic : Hiki i ke kānana antenna kaʻa ke kānana pono i ka hoʻopilikia electromagnetic, ʻoiai nā hōʻailona hoʻopilikia alapine kiʻekiʻe, e pale aku iā lākou mai ke komo ʻana i ka pūnaewele mana a me ka hoʻohaumia ʻana i ke kaiapuni electromagnetic. Kōkua kēia i ka mālama ʻana i nā lako kamaʻilio e hana pono ana a pale aku i ka hoʻopau ʻana i ke kamaʻilio a i ʻole ka hewa ʻikepili i hoʻokumu ʻia e ka hoʻopilikia electromagnetic .
ʻO Youdaoplaceholder0 E hoʻomaikaʻi i ka maikaʻi o ke kamaʻilio : Ma ka kānana ʻana i nā hōʻailona hoʻopilikia alapine kiʻekiʻe, hiki i ke kānana ke hoʻomaikaʻi i ka lakio hōʻailona-i-walaʻau o ka mea loaʻa, e hōʻoiaʻiʻo ana i nā hōʻailona kamaʻilio maopopo a paʻa. He mea nui loa kēia i nā lako kamaʻilio i kau ʻia ma ke kaʻa, ʻoi aku hoʻi i nā wahi walaʻau kiʻekiʻe, hiki ke hoʻemi pono i ka pae walaʻau hope a hoʻomaikaʻi i ka maikaʻi o ke kamaʻilio .
ʻO Youdaoplaceholder0 Hoʻonui hōʻailona : Kōkua pū nā kānana i ka hoʻoikaika ʻana i ka hoʻoili ʻana o nā hōʻailona pono, e hōʻoiaʻiʻo ana i ka loaʻa ʻana o nā hōʻailona paʻa a pololei hoʻi no nā polokalamu e like me nā ʻōnaehana hoʻokele a me nā lekiō. HE MEA KOʻIKOʻI kēia no ka hana maʻamau o ka ʻōnaehana hoʻokele kaʻa a me ka RADIO .
Hoʻolālā a me ke kumumanaʻo hana
ʻO ka maʻamau, ua hana ʻia nā kānana antenna kaʻa me nā capacitors, inductors a me nā resistors. Ma ka hoʻohana ʻana i ko lākou ʻano o ka hala ʻana i nā alapine kiʻekiʻe a me ke ālai ʻana i nā alapine haʻahaʻa, kuhikuhi lākou i nā kahe hoʻopilikia alapine kiʻekiʻe i loko o ka lepo a i ʻole ke kaula kūlike ʻole, no laila e hōʻike ana a omo paha i nā hōʻailona hoʻopilikia. Eia kekahi, hiki i ke kānana ke kāohi hou aku i ka hoʻopilikia electromagnetic ma o nā ʻano loea e like me ka kānana multistage a me ka compensation circuit no ka loulou alakaʻi.
ʻO Youdaoplaceholder0 ʻO ke kānana antenna kaʻa he mea hana i hoʻohana ʻia i nā ʻōnaehana antenna kaʻa, nona ka hana nui e kānana i nā hōʻailona makemake ʻole ʻia e hōʻoia i hiki i ka antenna ke loaʻa wale nā hōʻailona i makemake ʻia. Hoʻomaikaʻi nā kānana i ka maikaʻi o ka hōʻailona i loaʻa a me ke kūpaʻa o ka ʻōnaehana ma o ka ʻae ʻana i nā alapine kikoʻī o ka hōʻailona e hele ma waena o ka wā e kāohi ana i nā alapine ʻē aʻe.
Nā ʻano a me nā hana o nā kānana antenna kaʻa
Kānana haʻahaʻa Youdaoplaceholder0 : ʻAe i nā hōʻailona ma lalo o kahi alapine ʻoki e hala a ālai i nā hōʻailona ma luna o kēlā alapine.
ʻO Youdaoplaceholder0 Kānana kiʻekiʻe-pass : Kāohi i nā hōʻailona ma lalo o kahi alapine ʻoki a ʻae i nā hōʻailona ma luna o kēlā alapine e hala.
Kānana Band-pass Youdaoplaceholder0 : ʻAe i nā hōʻailona o kahi hui e hele a ālai i nā hōʻailona o nā hui ʻē aʻe.
Kānana band-stop Youdaoplaceholder0 : Kāohi i nā hōʻailona mai kekahi hui a ʻae i nā hōʻailona mai nā hui ʻē aʻe e hele.
Nā hiʻohiʻona noi a me ke koʻikoʻi o nā kānana antenna kaʻa
Hoʻohana nui ʻia nā kānana antenna kaʻa i nā ʻōnaehana uila kaʻa like ʻole, ʻoi aku hoʻi i nā antenna kaʻa peʻahi manō. ʻAʻole wale kēia hoʻolālā i ka nani akā hoʻemi maikaʻi hoʻi i ke kū'ē ʻana o ka makani. I kēia manawa, hiki i ke kānana i kūkulu ʻia ke kānana i nā mea hoʻopilikia electromagnetic pono ʻole, e hōʻoiaʻiʻo ana i ka hana paʻa o nā lako kamaʻilio. No ka laʻana, he mea nui loa nā kānana i nā ʻāpana koʻikoʻi e like me ka mana mīkini a me nā ʻōnaehana braking e hōʻoia i ka hilinaʻi o kēia mau ʻōnaehana a hoʻomaikaʻi i ka palekana o ka hoʻokele.
ʻO ke kumumanaʻo hoʻolālā a me nā ʻano loea o nā kānana antenna kaʻa
Hoʻokumu ʻia ke kumumanaʻo hoʻolālā o nā kānana antenna kaʻa ma ke kumumanaʻo electromagnetic a me ka hoʻolālā kaapuni, a ua haku ʻia me nā capacitors, inductors a me nā resistors. ʻO kāna mau palena loea nui e pili ana i ke alapine waena, ke alapine ʻoki, ka bandwidth passband, ka pohō hoʻokomo, ka ripple, ka nalu in-band, ka lakio nalu kū in-band, ka pohō hoʻihoʻi, ke kekelē hoʻopau stopband, ka lohi a me ka linearity phase in-band, a pēlā aku. Hoʻoholo pū kēia mau palena i ka hana a me ka hopena o ke kānana.
Inā makemake ʻoe e ʻike hou aku, e hoʻomau i ka heluhelu ʻana i nā ʻatikala ʻē aʻe ma kēia pūnaewele!
E ʻoluʻolu e kelepona mai iā mākou inā makemake ʻoe i kēlā mau huahana.
ʻO Zhuo Meng Shanghai Auto Co., Ltd. ua kūpaʻa i ke kūʻai aku ʻana i nā ʻāpana kaʻa MG&750 e kūʻai.
