Passive Band Pass Pass Muyunguruzi
Passive Band Pass Pass MuyunguruziBirashobora gukorwa muguhuza hamwe inzira ntoya yo kuyungurura hamwe na pass yo hejuru
Passive Band Pass Filter irashobora gukoreshwa mugutandukanya cyangwa kuyungurura imirongo imwe nimwe iri mumurongo runaka cyangwa urwego rwumurongo. Guhagarika inshuro cyangwa pointc point muburyo bworoshye bwa RC passive filter irashobora kugenzurwa neza ukoresheje résistoriste imwe gusa murukurikirane hamwe na capacitor idafite polarisiyoneri, kandi ukurikije inzira zinyuranye zahujwe, twabonye ko haba Pass Pass yo hasi cyangwa High Pass filter.
Imikoreshereze imwe yoroshye kuri ubu bwoko bwa passiyoyungurura ni mumajwi yongerera amajwi porogaramu cyangwa imizunguruko nko mu ndangururamajwi zambukiranya amajwi cyangwa mbere yo kongera amajwi. Rimwe na rimwe, birakenewe kunyura gusa kumurongo runaka wa radiyo idatangirira kuri 0Hz, (DC) cyangwa ikarangirira kumurongo wo hejuru wo hejuru ariko ikaba iri murwego runaka cyangwa umurongo wa radiyo, yaba ifunganye cyangwa yagutse.
Muguhuza cyangwa "cascading" hamwe umuzenguruko umwe muto wo muyunguruzi hamwe na sisitemu yo hejuru ya Pass Pass Filter, turashobora kubyara ubundi bwoko bwa pasiporo ya RC itambuka inyura murwego rwatoranijwe cyangwa "band" yumurongo ushobora kuba muto cyangwa mugari mugihe uhuza abo hanze yuru rwego. Ubu bwoko bushya bwa passiyo ya filteri itanga inshuro zitoranya zungurura zizwi cyane nka Band Pass Filter cyangwa BPF mugihe gito.
Bitandukanye na pass yo muyunguruzi itambutsa gusa ibimenyetso byurwego ruciriritse cyangwa urwego rwo hejuru rwungurura rutambutsa ibimenyetso byurwego rwinshi, Band Pass Filters itambutsa ibimenyetso muri "band" cyangwa "gukwirakwiza" imirongo myinshi itagoretse ibimenyetso byinjira cyangwa ngo itangize urusaku rwinshi. Iri tsinda ryinshyi rishobora kuba ubugari ubwo aribwo bwose bizwi nkayunguruzo Umuyoboro mugari.
Umuyoboro mugari usobanurwa nkurugero rwumurongo ubaho hagati yinshuro ebyiri zagabanijwe zaciwe (ƒc), ziri 3dB munsi yikigo ntarengwa cyangwa impinga ya resonant mugihe uhuza cyangwa ucogora izindi hanze yizi ngingo zombi.
Noneho kugirango ikwirakwizwe cyane, dushobora gusobanura gusa ijambo "umurongo mugari", BW nkaho ari itandukaniro riri hagati yo guca bugufi (ƒcLOWER) hamwe nuduce twinshi twaciwe (ƒcHIGHER). Muyandi magambo, BW = ƒH - ƒL. Biragaragara ko inzira ya bande iyungurura kugirango ikore neza, guca inshuro yumwanya muto wo kuyungurura bigomba kuba birenze ibyo guca inshuro nyinshi hejuru ya filteri.
"Byiza" Band Pass Filter irashobora kandi gukoreshwa mugutandukanya cyangwa gushungura imirongo imwe nimwe iri mumurongo runaka wa radiyo, urugero, guhagarika urusaku. Akayunguruzo ka bande kayunguruzo kazwi muri rusange nkicyiciro cya kabiri cyayunguruzo, (pole ebyiri) kubera ko gifite "bibiri" reaction reaction, capacator, mubishushanyo mbonera byabo. Imashini imwe mumuzinga muto hanyuma indi capacitori murwego rwo hejuru.
Ikibanza cya Bode cyangwa inshuro zisubiza umurongo hejuru yerekana ibiranga band pass ya filteri. Hano ikimenyetso cyerekanwe kumurongo muke hamwe nibisohoka byiyongera kumurongo wa + 20dB / Decade (6dB / Octave) kugeza igihe umurongo ugeze kuri "munsi yo guca" pointL. Kuri iyi frequence isohoka voltage yongeye 1 / √2 = 70.7% yikimenyetso cyinjiza cyangwa -3dB (20 * log (VOUT / VIN)) yinjiza.
Ibisohoka bikomeza kunguka byinshi kugeza bigeze kuri "hejuru yo guca" point ƒH aho ibisohoka bigabanuka ku gipimo cya -20dB / Decade (6dB / Octave) gihuza ibimenyetso byose byinshyi. Ingingo yo gusohora byinshi ni ubusanzwe geometrike isobanura agaciro ka -3dB hagati y amanota yo hepfo no hejuru yaciwe kandi yitwa "Centre Frequency" cyangwa "Resonant Peak" agaciro ƒr. Iyi geometrike isobanura agaciro ibarwa nk ƒr 2 = ƒ (UPPER) x ƒ (HASI).
Aumurongo unyuramoifatwa nkicyiciro cya kabiri (bibiri-pole) ubwoko bwa filteri kuko ifite ibice bibiri "reaction" muburyo bwumuzunguruko, noneho inguni yicyiciro izaba inshuro ebyiri iyambere yabonetse mbere-iyungurura, ni ukuvuga 180o. Icyiciro cya fonctionnement y'ibisohoka BIKORESHEJE ibyinjijwe na + 90o kugeza kuri centre cyangwa resonant frequency, point point point yahindutse dogere "zeru" (0o) cyangwa "muri-fase" hanyuma ihinduka kuri LAG ibyinjijwe na -90o uko ibisohoka byiyongera.
Hejuru na Hasi yaciwe-ya-ya-ya-ya-ya-ya-ya-ya-ya-ya-ya-ya-ya-ya-ya-ya-ya-ya-ya-ya-ya-ya-ya-ya-ya-ya-ya-ya-ya-ya-ya-ya-ya
Ibice biza bisanzwe hamwe na SMA cyangwa N ihuza abategarugori, cyangwa 2,92mm, 2.40mm, na 1.85mm ihuza ibice byinshi.
Turashobora kandi guhitamo Band Pass Filter dukurikije ibyo usabwa. Urashobora kwinjiza urupapuro rwihariye kugirango utange ibisobanuro ukeneye.
Igihe cyo kohereza: Nzeri-06-2022
