Nūhou

kānana hāliu, i ʻike ʻia ʻo LC kānana, he kānana kānana i haku ʻia me ka inductance, capacitance a me ke kūpaʻa, hiki ke kānana i hoʻokahi a ʻoi aku paha nā harmonics. ʻO ka mea maʻamau a maʻalahi hoʻi ka hoʻohana ʻana i ka ʻōnaehana kānana passive ʻo ia ka hoʻopili ʻana i ka inductance a me ka capacitance i ka moʻo, hiki ke hana i kahi bypass impedance haʻahaʻa no nā harmonics nui (3, 5 a me 7); ʻO ke kānana hoʻokahi, ka kānana pālua a me ka kānana ala kiʻekiʻe he mau kānana passive.
pono
Loaʻa i ka kānana Passive nā pono o ka hoʻolālā maʻalahi, ke kumu kūʻai haʻahaʻa, ka hilinaʻi kiʻekiʻe o ka hana a me ke kumu kūʻai haʻahaʻa. Hoʻohana nui ʻia ia e like me ke ʻano hoʻokele harmonic.
hoʻokaʻawale
ʻO nā hiʻohiʻona o ka kānana LC e hoʻokō i nā koi kikoʻī ʻenehana. Ke hana mau nei kēia mau koi ʻenehana i ka attenuation ma ka ʻaoʻao alapine, a i ʻole ka hoʻololi ʻana, a i ʻole nā ​​mea ʻelua; I kekahi manawa, manaʻo ʻia nā koi pane manawa ma ke kikowaena manawa. Hiki ke hoʻokaʻawale ʻia nā kānana passive i ʻelua mau ʻāpana: nā kānana i hoʻopaʻa ʻia a me nā kānana kiʻekiʻe. I ka manawa like, e like me nā ʻano hoʻolālā like ʻole, hiki ke hoʻokaʻawale ʻia i ke kānana parameter kiʻi a me ka kānana hana.
Hoʻoponopono kānana
Aia i loko o ka kānana hoʻoheheʻe ʻia kahi kānana hoʻokani hoʻokahi a me kahi kānana hoʻoheheʻe pālua, hiki ke kānana i hoʻokahi (hoʻokani hoʻokahi) a i ʻole ʻelua (hoʻokani pālua) harmonics. Ua kapa ʻia ke alapine o nā harmonics ʻo ke alapine resonant o ka kānana hoʻopono.
Kānana ala kiʻekiʻe
ʻO kāna kānana hele kiʻekiʻe, ʻike ʻia hoʻi ʻo ka amplitude reduction filter, ʻoi aku ka nui o ka kānana kiʻekiʻe kiʻekiʻe, ka lua o ka papa kiʻekiʻe kiʻekiʻe kānana, ke kolu o ka papa kiʻekiʻe kiʻekiʻe kānana a me ka kānana C-type, i hoʻohana ʻia e hoʻemi nui i nā harmonics haʻahaʻa ma mua o kahi alapine, i kapa ʻia ʻo ka ʻoki ʻoki ʻana o ka kānana kiʻekiʻe.
Kānā palena kiʻi
Hoʻolālā a hoʻokō ʻia ka kānana ma muli o ke kumumanaʻo o nā ʻāpana kiʻi. Aia kēia kānana i kekahi mau ʻāpana kumu (a i ʻole hapa hapa) i hoʻokaʻawale ʻia e like me ke kumu o ka impedance kiʻi like ma ka pilina. Hiki ke hoʻokaʻawale ʻia ka ʻāpana kumu i ke ʻano K-type a me ka m-derived type e like me ke ʻano kaapuni. Ke lawe nei i ka kānana haʻahaʻa haʻahaʻa LC ma ke ʻano he laʻana, ʻo ka hoʻemi ʻana i ka pahu hoʻomaha o ka ʻāpana kumu haʻahaʻa K-type haʻahaʻa e hoʻonui monotonically me ka piʻi ʻana o ka alapine; Loaʻa i ka piko hoʻohaʻahaʻa haʻahaʻa haʻahaʻa i loaʻa i ka m i kekahi alapine i ka pahu hoʻomaha, a ke hoʻomalu ʻia ke kūlana o ka piko hoʻemi e ka waiwai m ma ka node i loaʻa mai. No kahi kānana holo haʻahaʻa i haku ʻia me nā ʻāpana kumu Cascaded Low-Pass, ua like ka attenuation kūlohelohe me ka huina o ka attenuation kūlohelohe o kēlā me kēia ʻāpana kumu. Ke hoʻopau ʻia ka impedance kūloko a me ka hoʻouka ʻana o ka lako mana ma nā ʻaoʻao ʻelua o ka kānana e like me ka impedance kiʻi ma nā ʻaoʻao ʻelua, ua like ka attenuation hana a me ka hoʻololi ʻana o ka kānana me kā lākou attenuation inherent a me ka hoʻololi ʻana i kēlā me kēia. (a) ʻO ka kānana i hōʻike ʻia he ʻāpana K paʻa a me ʻelua mau ʻāpana i loaʻa i ka cascade. ʻO Z π a me Z π m ka paʻa kiʻi. (b) He ʻano ʻano alapine ʻo ia. Hoʻoholo paʻa ʻia nā kūlana o nā piko atenuation ʻelua /f ∞ 1 a me f ∞ 2 i loko o ka pahu hoʻomaha e nā koina m o nā node i loaʻa mai ʻelua.
Pēlā nō, hiki ke haku ʻia nā kānana ala kiʻekiʻe, band-pass a me band stop i nā ʻāpana kumu kūpono.
ʻAʻole hiki ke like ka impedance kiʻi o ka kānana me ke kūpaʻa kūwaho kūwaho maʻemaʻe o ka lako mana a me ka hoʻouka impedance i loko o ke alapine holoʻokoʻa holoʻokoʻa (ʻoi aku ka ʻokoʻa ma ka stopband), a ʻokoʻa loa ka attenuation inherent a me ka hana attenuation i ka passband. I mea e hōʻoia ai i ka hoʻokō ʻana i nā hōʻailona ʻenehana, pono ia e mālama i ka palena attenuation kūpono kūpono a hoʻonui i ka laulā passband i ka hoʻolālā.
kānana ʻāpana hana
ʻAʻole i haku ʻia kēia kānana i nā ʻāpana kumu cascaded, akā hoʻohana i nā hana ʻoihana i hiki ke ʻike kino ʻia e R, l, C a me nā mea inductance like e hoʻohālikelike pono i nā kikoʻī ʻenehana o ka kānana, a laila ʻike i ke kaapuni kānana e pili ana i nā hana pūnaewele i loaʻa. E like me nā pae hoʻohālikelike like ʻole, hiki ke loaʻa nā hana pūnaewele ʻokoʻa, a hiki ke ʻike ʻia nā ʻano kānana like ʻole. (a) ʻO ia ke ʻano o ka kānana haʻahaʻa haʻahaʻa i ʻike ʻia e ka hoʻohālikelike amplitude palahalaha loa (kahi kokoke i ka bertowitz); ʻO ka passband ka palahalaha loa kokoke i ka alapine ʻole, a piʻi monotonically ka attenuation i ka wā e hoʻokokoke ana i ka band stop. (c) ʻO ke ʻano o ka kānana haʻahaʻa haʻahaʻa i ʻike ʻia e ka hoʻohālikelike ʻana o nā ripple like (Chebyshev approximation); Hoʻololi ka attenuation i ka passband ma waena o ka zero a me ka palena kiʻekiʻe, a hoʻonui monotonically i ka stopband. (e) Hoʻohana ia i ka hoʻohālikelike hana elliptic e ʻike i nā ʻano o ka kānana haʻahaʻa haʻahaʻa, a ʻo ka attenuation e hōʻike ana i ka hoʻololi mau ʻana o ka uila ma nā pā pass a me ka band stop. (g) ʻO ke ʻano o ka kānana haʻahaʻa i ʻike ʻia e; ʻO ka attenuation i ka passband fluctuates i ka like amplitude, a me ka attenuation i ka stopband fluctuates e like me ka piʻi a me ka hāʻule i koi 'ia e ka index. (b), (d), (f) a me (H) nā kaapuni pili o kēia mau kānana ala haʻahaʻa.
Loaʻa ʻia nā kānana kiʻekiʻe, band-pass a me band stop mai nā kānana low-pass ma o ka hoʻololi pinepine ʻana.
Hoʻolālā ʻia ka kānana hana hana e ke ʻano synthesis e like me nā koi o nā hōʻailona ʻenehana, a hiki ke loaʻa i kahi kānana kānana me ka hana maikaʻi a me ka hoʻokele waiwai,
He mea maʻalahi ka kānana LC e hana, haʻahaʻa i ke kumukūʻai, ākea i ke alapine alapine, a hoʻohana nui ʻia i ka kamaʻilio, nā mea kani a me nā ʻano ʻē aʻe; I ka manawa like, hoʻohana pinepine ʻia e like me ka prototype hoʻolālā o nā ʻano kānana ʻē aʻe.

Hiki iā mākou ke hana i nā ʻāpana passive rf e like me kāu mau koi. Hiki iā ʻoe ke komo i ka ʻaoʻao hoʻoponopono e hāʻawi i nā kikoʻī āu e pono ai.
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