Izihlungi ze-High frequency band pass ziyizinto zikagesi eziklanyelwe ukuvumela kuphela uhla oluthile lwamasiginali aphezulu ukuthi ludlule ngenkathi kuncishiswa amasignali kumaza angaphandle kwalolo bubanzi. Lezi zihlungi zivame ukusetshenziswa ezinhlelweni zokuxhumana, okokusebenza okulalelwayo, nezinye izinhlelo zokusebenza ze-elekthronikhi ezidinga ukusabela okunembayo kwemvamisa. Kulesi sihloko, sizohlola izici ezibalulekile zezihlungi ze-high frequency band pass, okuhlanganisa impendulo yazo yemvamisa, umkhawulokudonsa, kanye ne-Q-factor.
Ukusabela Imvamisa: Impendulo yefrikhwensi yesihlungi sebhendi yokudlula ephezulu inquma ukuthi inciphisa kanjani amasiginali kumafrikhwensi angaphandle kwebhendi yokudlula nokuthi iwakhulisa kangakanani amasignali ngaphakathi kwebhendi yokudlula. Isihlungi esiklanywe kahle sebhendi yokudlula imvamisa ephezulu sizoba noshintsho olucijile phakathi kwebhendi yokudlula ne-stopband, ne-ripple encane kubhendi yokungena. Umumo wejika lokuphendula imvamisa kunqunywa idizayini yesihlungi, futhi ungabonakala ngefrikhwensi ephakathi nendawo kanye nomkhawulokudonsa waso.
Umkhawulokudonsa: Umkhawulokudonsa wesihlungi sokudlula ibhendi ephezulu yibanga lamafrikhwensi avunyelwe ukudlula esihlungini ngokuncishiswa okuncane. Ngokuvamile kucaciswa njengomehluko phakathi kwamafrikhwensi aphezulu nangaphansi -3 dB, okungamafrikhwensi lapho amandla okukhiphayo esihlungi ehliswa ngo-50% ngokuqhathaniswa namandla amakhulu kubhendi yokudlula. I-bandwidth yesihlungi se-high frequency band pass iyipharamitha ebalulekile enquma ukukhetha kwayo nokuthi ingakwazi kanjani ukwenqaba amasignali angafuneki ngaphandle kwe-passband.
I-Q-Factor: I-Q-factor yesihlungi se-high frequency band pass isilinganiso sokukhethwa kwaso noma ubukhali bempendulo yesihlungi. Ichazwa njengesilinganiso semvamisa yesikhungo ukuya kumkhawulokudonsa. I-Q-factor ephakeme ihambisana nomkhawulokudonsa omncane kanye nempendulo yemvamisa ebukhali, kuyilapho i-Q-factor ephansi ihambisana nomkhawulokudonsa obanzi kanye nempendulo yemvamisa ehamba kancane. I-Q-factor yesihlungi se-high frequency band pass iyipharamitha ebalulekile enquma ukusebenza kwayo ekwenqabeni amasiginali angafuneki ngaphandle kwebhendi yokudlula.
Ukulahlekelwa Kokufaka: Ukulahlekelwa kokufakwa kwesihlungi sokudlula kwebhendi ephezulu yinani lokuncishiswa kwesignali okwenzeka lapho isignali idlula esihlungini. Ngokuvamile kuvezwa ngama-decibel futhi kuyisilinganiso sokuthi isihlungi sinciphisa kangakanani amasiginali kubhendi yokungena. Isihlungi esiklanywe kahle sebhendi yokudlula imvamisa ephezulu kufanele sibe nokulahlekelwa okuncane kokufaka kubhande lokungena ukuze kugwenywe ukuthunaza ikhwalithi yesiginali.
I-Impedans Matching: Ukufanisa i-impedance kuyisici esibalulekile sezihlungi ze-high frequency band pass, ikakhulukazi ezinhlelweni zokuxhumana. I-impedance yokokufaka nokuphumayo kwesihlungi kufanele ifaniswe nomthombo kanye ne-impedance yokulayisha ukuze kuncishiswe ukuboniswa kwesignali nokuthuthukisa ukudluliswa kwesignali. Isihlungi esifanelana kahle nebhendi yokudlula ephezulu sizoba nokulahlekelwa kwesignali okuncane kanye nokuhlanekezela.
Sengiphetha, izihlungi ze-high frequency band pass ziyizingxenye ezibalulekile kumasekethe e-elekthronikhi adinga impendulo enembile yefrikhwensi. Izici zabo ezibalulekile zifaka impendulo yabo yemvamisa, umkhawulokudonsa, i-Q-factor, ukulahleka kokufakwayo, kanye nokuqhathanisa kwe-impedance. Isihlungi esidizayinelwe kahle sebhendi yokudlula imvamisa ephezulu kufanele sibe nokuphendula kwemvamisa ecijile, umkhawulokudonsa omncane, ukulahlekelwa okuncane kokufaka, nokumatanisa kwe-impedance ukuze kuqinisekiswe ukusebenza kahle.
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Isikhathi sokuthumela: May-10-2023
