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Kānana Band Pass: Ke hoʻololi nei i ka ʻoihana uila

Ma ke ʻano he mea hana alakaʻi o nā mea uila, haʻaheo mākou e hoʻolauna i ka hana hou loa i kā mākou laina huahana - ka Kānana Holo Band (BPF). He mau ʻāpana uila passive nā BPF i hoʻomohala ʻia e ʻae koho i kahi laulā o nā alapine e hele ai, ʻoiai e ālai ana i nā mea ʻē aʻe. Ma kēia pou blog, e ʻimi mākou pehea e hoʻohana ʻia ai nā BPF i ka ʻoihana uila e hana i nā huahana ʻoi aku ka maikaʻi a hoʻonui i ka hana.

He aha ka Band Pass Filter?

ʻO kahi Band Pass Filter kahi ʻano kānana uila e hiki ai i kahi laulā kikoʻī o nā alapine e hele ma o kāna kaapuni. Hoʻopau ikaika kēia kānana i nā alapine āpau koe wale nō ka bandwidth i makemake ʻia, e lilo ia i mea hana pono no ka hana ʻana i nā hōʻailona. Nā noi o BPF i ka ʻoihana uila Hoʻohana ʻia nā BPF ma nā ʻano ʻoihana like ʻole, me ke kelepona, nā leo a me ke wikiō, a me nā mea lapaʻau.

Eia nā noi koʻikoʻi o nā BPF i ka ʻoihana uila.

Kamaʻilio uea ʻole:Hoʻohui pinepine ʻia nā kānana Band Pass i loko o nā ʻōnaehana kamaʻilio uea ʻole, e like me nā kelepona paʻalima, e mālama i kahi hōʻailona paʻa. He mea pono loa nā BPF i ka wā e pili ana i ka hoʻopau ʻana i nā hōʻailona ma waho o ka band, hiki ke hoʻopilikia a hōʻemi i ka maikaʻi o ka hōʻailona.

Leo a me wikiō:Hoʻohana ʻia nā kānana Band Pass i nā ʻōnaehana leo e pale aku i nā pae alapine i makemake ʻole ʻia mai ka hele ʻana. Hiki iā lākou ke hana i ke kani kiʻekiʻe me ka ʻole o ka walaʻau a i ʻole ka hoʻopilikia ʻana. I ka hana wikiō, ua lilo nā BPF i mea pono no ka hana ʻana i nā kiʻi HD. Hoʻomaʻalahi lākou i ka wehe ʻana i nā alapine a me nā harmonics i makemake ʻole ʻia me ka mālama ʻana i ka pae i makemake ʻia.

Nā mea lapaʻau:Ua lilo nā BPF i mau ʻāpana koʻikoʻi i nā mea lapaʻau e like me nā mīkini magnetic resonance imaging (MRI). Ma ka hoʻopau ʻana i nā alapine ma waho o ka pae i makemake ʻia, hana lākou i nā kiʻi ʻoi aku ka maopopo. Pēlā nō, hoʻohana ʻia lākou i nā mea kālailai koko e kānana i nā hunaola koko ʻulaʻula a me keʻokeʻo mai ka hāpana.

I ka hopena, he mau mea hana ikaika nā Band Pass Filters e hiki ke hoʻonui i ka hana o nā mea uila. ʻO ko lākou hiki ke kāohi i nā alapine i makemake ʻole ʻia a hoʻonui i ka lakio signal-to-noise e hoʻolilo iā lākou i mea pono i nā ʻano hana like ʻole.

Ma ke ʻano he mea hana alakaʻi o nā mea uila, haʻaheo mākou i ka hoʻohui ʻana i kēia ʻenehana i kā mākou huahana e hāʻawi i ka hana kiʻekiʻe loa i kā mākou mea kūʻai aku. ʻO kona pilina i ka hoʻomaikaʻi ʻana i ka hana o nā kaapuni uila e hoʻolilo i nā Band Pass Filters i ʻāpana koʻikoʻi i ka ʻoihana uila.

ʻO Si Chuan Keenlion Microwave he 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 ka rf Band Pass 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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