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He aha kahiKānana RF?

He ʻāpana koʻikoʻi ka kānana alapine lekiō o ka ʻenehana uea ʻole. Hoʻohana pū ʻia me ka mea hoʻokipa lekiō e kānana i nā hui alapine pono ʻole ʻē aʻe a loaʻa wale i ke alapine pololei. Ua hoʻolālā ʻia nā kānana RF e hana maʻalahi i ka pae alapine mai ke alapine waena a i nā alapine kiʻekiʻe loa (ʻo ia hoʻi megahertz a me gigahertz). Ma muli o kona mau ʻano hana, hoʻohana pinepine ʻia ia ma nā kikowaena lekiō, nā kamaʻilio uea ʻole, ke kīwī a me nā lako ʻē aʻe.

ʻO ka maʻamau, ʻo ka hapa nui o nā kānana RF i hana ʻia me nā resonators i hoʻopili ʻia, a hiki i kā lākou mau mea maikaʻi ke hoʻoholo i ka pae kānana ma RF. Wahi a ka noi a me ka nui o nā lako uila, he nui nā ʻano kānana, ʻo ia hoʻi ke kānana lua, ke kānana mokulele, ke kānana electroacoustic, ke kānana dielectric, ke kānana coaxial (kūʻokoʻa o ke kaula coaxial), a pēlā aku.

Nā ʻAno Kumu o ke Kānana Alapine Leka Uila

He kaapuni kūikawā ka kānana RF e hiki ai i nā hōʻailona pololei ke hele a hoʻopau i nā hōʻailona makemake ʻole ʻia. Ma ke ʻano o ka topology kānana, aia ʻehā mau ʻano kānana RF kumu, ʻo ia hoʻi, kānana pass kiʻekiʻe, kānana pass haʻahaʻa, kānana pass band a me ke kānana hoʻōki band

Kānana Haʻahaʻa:

E like me ka inoa e hōʻike nei, ʻo kahi kānana haʻahaʻa haʻahaʻa he kānana e ʻae wale i nā alapine haʻahaʻa e hele a hoʻēmi i nā alapine hōʻailona ʻē aʻe i ka manawa like. Ke hele kahi hōʻailona ma o kahi bandpass, ua hoʻoholo ʻia kona hoʻemi alapine e nā kumu he nui, e like me ke topology kānana, ka hoʻonohonoho a me ka maikaʻi o ka ʻāpana. Eia kekahi, hoʻoholo pū ka topology kānana i ka wikiwiki o ka hoʻololi ʻana o ke kānana mai ka passband e hoʻokō i kāna kāohi hope loa.

Loaʻa nā kānana haʻahaʻa i nā ʻano like ʻole. ʻO ka hoʻohana nui ʻana o ke kānana, ʻo ia ke kāohi i ka harmonic o ka mea hoʻonui RF. He mea nui kēia hiʻohiʻona no ka mea kōkua ia i ka pale ʻana i nā mea hoʻopilikia pono ʻole mai nā hui hoʻoili like ʻole. ʻO ka mea nui, hoʻohana ʻia nā kānana haʻahaʻa no nā noi leo a kānana i ka walaʻau mai kekahi kaapuni waho. Ma hope o ka kānana ʻia ʻana o ka hōʻailona alapine kiʻekiʻe, loaʻa i ka alapine hōʻailona i loaʻa kahi ʻano maopopo.

Kānana Holo Kiʻekiʻe:

I ka hoʻohālikelike ʻana me ke kānana haʻahaʻa haʻahaʻa, ʻae ke kānana kiʻekiʻe i nā hōʻailona alapine kiʻekiʻe wale nō e hele. ʻO ka ʻoiaʻiʻo, he mea hoʻopihapiha loa ke kānana haʻahaʻa haʻahaʻa a me ke kānana kiʻekiʻe, no ka mea, hiki ke hoʻohana pū ʻia nā kānana ʻelua e hana i kahi kānana band-pass. Pololei ka hoʻolālā o ke kānana haʻahaʻa kiʻekiʻe a hoʻēmi i ke alapine ma lalo o ka paepae.

Ma keʻano laulā, hoʻohana ʻia nā kānana pass kiʻekiʻe i nā ʻōnaehana leo, kahi e kānana ʻia ai nā alapine haʻahaʻa āpau. Eia kekahi, hoʻohana ʻia hoʻi e wehe i nā mea ʻōlelo liʻiliʻi a me ka bass i nā hihia he nui; Ua kūkulu kūikawā ʻia kēia mau kānana i loko o nā mea ʻōlelo. Eia nō naʻe, inā pili kekahi papahana DIY, hiki ke hoʻopili maʻalahi ʻia ka kānana pass kiʻekiʻe i ka ʻōnaehana.

Nā Kānana Band Pass:

ʻO kahi kānana band-pass kahi kaapuni e ʻae ai i nā hōʻailona mai ʻelua mau alapine like ʻole e hele a hoʻēmi i nā hōʻailona ʻaʻole i loko o kona laulā i ʻae ʻia. Hilinaʻi ka hapa nui o nā kānana band-pass i kekahi kumu mana waho a hoʻohana i nā ʻāpana hana, ʻo ia hoʻi nā kaapuni i hoʻohui ʻia a me nā transistors. Ua kapa ʻia kēia ʻano kānana he kānana band-pass hana. Ma ka ʻaoʻao ʻē aʻe, ʻaʻole hoʻohana kekahi mau kānana band-pass i ka lako mana waho a hilinaʻi nui i nā ʻāpana passive, ʻo ia hoʻi nā inductors a me nā capacitors. Ua kapa ʻia kēia mau kānana he kānana band-pass passive.

Hoʻohana pinepine ʻia nā kānana Bandpass i nā mea hoʻokipa uea ʻole a me nā mea hoʻoili. ʻO kāna hana nui i ka mea hoʻoili, ʻo ia ke kaupalena i ka bandwidth o ka hōʻailona hoʻopuka i ka liʻiliʻi loa, i hiki ke hoʻouna ʻia ka ʻikepili e pono ai ma ka wikiwiki a me ke ʻano e pono ai. Ke komo ka mea hoʻokipa, ʻae wale ka kānana band-pass i ka decoding a i ʻole ka lohe ʻana i ka helu o nā alapine i koi ʻia, ʻoiai e ʻoki ana i nā hōʻailona ʻē aʻe mai nā alapine i makemake ʻole ʻia.

I kahi huaʻōlelo, ke hoʻolālā ʻia kahi kānana band-pass, hiki iā ia ke hoʻonui maʻalahi i ka maikaʻi o ka hōʻailona a hoʻemi i ka hoʻokūkū a i ʻole ka hoʻopilikia ma waena o nā hōʻailona.

Hōʻole Hui:

I kekahi manawa i kapa ʻia ʻo band stop filter, ʻo band stop filter kahi kānana e ʻae i ka hapa nui o nā alapine e hele me ka ʻole o ka hoʻololi ʻana. Eia nō naʻe, hoʻēmi ia i nā alapine ma lalo o kahi laulā kikoʻī loa. ʻO kāna hana he kūʻē loa ia i kēlā o ke kānana band-pass. ʻO ke kumu, ʻo kāna hana ka hoʻoili ʻana i ke alapine mai ka ʻole a i ke kiko ʻoki mua o ke alapine. Ma waena, hoʻoili ia i nā alapine āpau ma luna o ke kiko ʻoki ʻelua o ke alapine. Eia naʻe, hōʻole a ālai paha ia i nā alapine ʻē aʻe ma waena o kēia mau kiko ʻelua.

I kahi huaʻōlelo, ʻo kahi kānana kahi mea e ʻae ai i nā hōʻailona e hele ma waena me ke kōkua o ka passband. I nā huaʻōlelo ʻē aʻe, ʻo ka stopband i loko o ke kānana ke kiko kahi e hōʻole ʻia ai kekahi mau alapine e kekahi kānana. Inā he pass kiʻekiʻe, pass haʻahaʻa a i ʻole band pass, ʻo ke kānana kūpono he kānana me ka ʻole o ka nalowale i loko o ka pass band. Eia naʻe, i ka ʻoiaʻiʻo, ʻaʻohe kānana kūpono no ka mea e ʻike ka bandpass i kekahi pohō alapine a he mea hiki ʻole ke hoʻokō i ka hoʻopau palena ʻole ke hiki i ka stopband.

No ke aha he mea nui nā kānana alapine lekiō?

Hoʻohana ʻia nā kānana RF e hoʻokaʻawale i nā alapine hōʻailona, ​​​​akā he aha ka mea e hoʻolilo ai iā lākou i mea nui? I ka pōkole, hiki i nā kānana RF ke kānana i nā walaʻau e hoʻopilikia paha i ka maikaʻi a i ʻole ka hana o kekahi ʻōnaehana kamaʻilio a hōʻemi paha i ka hoʻopilikia ʻana o nā hōʻailona o waho. ʻO ka nele o kahi kānana RF kūpono e hōʻino paha i ka hoʻoili ʻana o ke alapine hōʻailona, ​​​​a i ka hopena e hōʻino paha i ke kaʻina kamaʻilio.

No laila, he kuleana koʻikoʻi ko nā kānana RF i nā ʻōnaehana kamaʻilio uea ʻole (e laʻa me ka ukali, radar, nā ʻōnaehana uea ʻole kelepona, a pēlā aku). I ka wā e pili ana i ka hana o nā kaʻa mokulele unmanned (UAS), ua maopopo ke koʻikoʻi o nā kānana RF. ʻO ka nele o ka ʻōnaehana kānana kūpono e hoʻopilikia i ka UAS ma nā ʻano he nui, e like me:

Hiki ke hoʻemi ʻia ka laulā kamaʻilio i nā mea hoʻopilikia i hoʻokumu ʻia e nā kumu kaiapuni o waho. Eia kekahi, ʻo ka loaʻa ʻana o ka nui o nā hōʻailona RF i ka lewa e hiki ke hōʻino nui i ka ʻōnaehana kamaʻilio UAV. ʻO nā hōʻailona ʻino mai nā kahua ʻē aʻe e komo pū me akā ʻaʻole i kaupalena ʻia i:; Hana hōʻailona Wi Fi ikaika a me nā ʻōnaehana kamaʻilio ʻē aʻe e hana ana i loko o ka UAS.

ʻO nā hoʻopilikia ʻana mai nā ʻōnaehana kamaʻilio ʻē aʻe e hoʻopilikia i ke kahawai kamaʻilio UAS, no laila e hōʻemi ana a kaupalena paha i ka laulā kamaʻilio o ia mau ʻōnaehana.

E hoʻopilikia pū ka hoʻopilikia ʻana i ka loaʻa ʻana o nā hōʻailona GPS o UAS; Hoʻonui kēia i ka hiki ke loaʻa nā hewa i ka hahai ʻana o GPS. I ka hihia ʻino loa, hiki i kēia ke hopena i ka nalowale piha ʻana o ka loaʻa ʻana o nā hōʻailona GPS.

Me ka kānana RF kūpono, hiki ke hoʻopau maʻalahi ʻia ka hoʻopilikia ʻana o waho a me ka hoʻopilikia ʻana o nā hōʻailona i hana ʻia e nā ʻōnaehana kamaʻilio pili. Mālama kēia i ka maikaʻi o ke alapine hōʻailona i makemake ʻia me ka kānana maʻalahi i nā alapine hōʻailona i makemake ʻole ʻia.

Eia kekahi, he kuleana koʻikoʻi ko nā kānana RF i ke kaiapuni kelepona paʻalima. I ka wā e pili ana i nā kelepona paʻalima, pono lākou i kahi helu o nā alapine alapine e hana pono ai. Ma muli o ka nele o nā kānana RF kūpono, ʻaʻole e noho pū nā alapine alapine like ʻole i ka manawa like, ʻo ia hoʻi, e hōʻole ʻia kekahi mau alapine alapine, ʻo ia hoʻi, ka Global Navigation Satellite System (GNSS), ka palekana o ka lehulehu, Wi Fi, a pēlā aku. Maanei, he kuleana koʻikoʻi ko nā kānana RF ma ka ʻae ʻana i nā alapine āpau e noho pū i ka manawa like.

Ma keʻano laulā, he māmā ke kaumaha o nā kānana a kōkua i ka hoʻomaikaʻi ʻana i ka hana o ke alapine hōʻailona. Inā ʻaʻole hāʻawi ka kānana RF i ka hana i makemake ʻia, a laila hiki iā ʻoe ke ʻimi i nā koho ʻē aʻe, ʻo kekahi o ia ka hoʻohui ʻana i nā amplifiers i kāu hoʻolālā. Mai ka amplifier grid i kekahi amplifier mana RF ʻē aʻe, hiki iā ʻoe ke hoʻololi i ke alapine hōʻailona haʻahaʻa i ke alapine hōʻailona kiʻekiʻe; I mea e hoʻomaikaʻi ai i ka hana holoʻokoʻa o ka hoʻolālā RF.

ʻO Si Chuan Keenlion Microwave kahi koho nui i nā hoʻonohonoho narrowband a me broadband, e uhi ana i nā alapine (frequencies) mai 0.5 a 50 GHz. Ua hoʻolālā ʻia lākou e lawelawe mai 10 a 30 watts ka mana hoʻokomo i loko o kahi ʻōnaehana hoʻoili 50-ohm. Hoʻohana ʻia nā hoʻolālā Microstrip a i ʻole stripline, a ua hoʻonohonoho pono ʻia no ka hana maikaʻi loa.

Hiki iā mākou ke hoʻopilikino i ka RF Filter e like me kāu mau koi. Hiki iā ʻoe ke komo i ka ʻaoʻao hoʻopilikino e hāʻawi i nā kikoʻī āu e pono ai.

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ʻO Sichuan Keenlion Microwave Technology Co., Ltd.

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