ʻO kaKānana hoʻomaha Band, (BSF) ʻo ia kekahi ʻano o ke kaapuni koho alapine e hana like me ke ala ʻē aʻe i ke kānana Band Pass a mākou i nānā ai ma mua. ʻO ka kānana band stop, ʻike ʻia hoʻi he kānana hōʻole band, e hele i nā alapine āpau me ka ʻole o nā mea i loko o kahi pahu hoʻomaha i kuhikuhi ʻia i hoʻemi nui ʻia.
Inā haiki loa kēia kāʻei hoʻokuʻu a hoʻemi nui ʻia ma luna o kekahi mau hertz, a laila ʻoi aku ka maʻamau o ka hui ʻana o ka band stop filter ma ke ʻano he kānana notch, ʻoiai ʻo kāna pane alapine e hōʻike ana i kahi notch hohonu me ke koho kiʻekiʻe (kahi ʻaoʻao ʻaoʻao kiʻekiʻe) ma mua o kahi hui ākea ākea.
Eia nō hoʻi, e like me ka kānana band pass, ʻo ke kānana band stop (band reject or notch) kānana he kānana papa lua (ʻelua pole) me ʻelua mau alapine ʻoki ʻia, ʻike ʻia ʻo -3dB a i ʻole hapa hapa mana e hana ana i kahi bandwidth kū ākea ma waena o kēia mau helu -3dB ʻelua.
A laila, holo loa ka hana o kahi kānana band stop i kēlā mau alapine a pau mai ka zero (DC) a hiki i kona wahi alapine ʻoki ʻoki mua (lalo) ƒL, a kau i kēlā mau alapine a pau ma luna o kona alapine lua (luna) ʻoki ʻoki ƒH, akā e ālai a hōʻole i kēlā mau alapine āpau i waena. A laila ua wehewehe ʻia ka bandwidth filters, BW e like me: (ƒH - ƒL).
No laila, no kahi kānana hoʻokuʻu ʻana o ka band wide-band, aia nā kānana ma waena o kona mau kiko lalo a me luna -3dB i kona wā e hoʻemi ai, a hōʻole paha i kekahi alapine ma waena o kēia mau alapine ʻoki ʻia. No laila, hāʻawi ʻia ka ʻōkuhi pane alapine o kahi kānana hoʻomaha band kūpono.
ʻO ka mea kūponokānana hoʻopaʻa pūe loaʻa ka attenuation palena ʻole i kona pūʻulu kū a me ka attenuation ʻole ma kēlā me kēia pā hele. ʻO ka hoʻololi ʻana ma waena o nā kaha hele ʻelua a me ke kāʻei hoʻomaha e kū pololei (pā pōhaku pōhaku). Nui nā ala e hiki ai iā mākou ke hoʻolālā i kahi "Band Stop Filter", a hoʻokō lākou a pau i ke kumu like.
Hele mai nā ʻāpana me nā mea hoʻohui wahine SMA a i ʻole N, a i ʻole 2.92mm, 2.40mm, a me 1.85mm mau mea hoʻohui no nā mea alapine kiʻekiʻe.
Hiki iā mākou ke hoʻopilikino i kaKānana hoʻomaha Bande like me kāu mau koi. Hiki iā ʻoe ke komo i ka ʻaoʻao hoʻoponopono e hāʻawi i nā kikoʻī āu e pono ai.
Ka manawa hoʻouna: ʻAukake-20-2022
