Ubuchwepheshe befrikhwensi yomsakazo okungenantambo: ukuhlaziywa kwezimiso kanye nokusetshenziswa kwezinkundla eziningi

I-RF (Radio Frequency) isho amaza kagesi anamaza phakathi kuka-3kHz no-300GHz, adlala indima ebalulekile kwezokuxhumana, irada, ukwelashwa, ukulawula izimboni neminye imikhakha.

Izimiso eziyisisekelo zefrikhwensi yomsakazo

Amasignali e-RF akhiqizwa ama-oscillator, futhi amagagasi kagesi aphezulu asakazwa futhi asakazwe ngezinti. Izinhlobo ze-antenna ezijwayelekile zifaka izimpondo ze-dipole, izimpondo zophondo kanye nezimpondo zezichibi, ezifanele izimo ezihlukene zohlelo lokusebenza. Indawo eyamukelayo ibuyisela isignali ye-RF olwazini olusebenzisekayo ngedemodulator ukuze kuzuzwe ukudluliswa kolwazi.

Izindlela zokuhlukanisa nokushintshashintsha kwamafrikhwensi omsakazo

Ngokuvumelana nefrikhwensi, ifrikhwensi yomsakazo ingahlukaniswa ibe yifrikhwensi ephansi (njengokuxhumana kokusakaza), ifrikhwensi ephakathi (njengokuxhumana ngomakhalekhukhwini), kanye nefrikhwensi ephezulu (njenge-radar nokwelashwa). Izindlela zokuguquguquka zihlanganisa i-AM (yokudlulisela ngesivinini esiphansi), i-FM (yokudlulisela ngesivinini esimaphakathi) kanye ne-PM (yokudlulisa idatha ngesivinini esikhulu).

I-RFID: ubuchwepheshe obuyisisekelo bokuhlonza okuhlakaniphile

I-RFID (i-radio frequency identification) isebenzisa amaza kagesi kanye nama-microchips ukuze kuzuzwe ukuhlonza okuzenzakalelayo, futhi isetshenziswa kabanzi ekuqinisekiseni ubuwena, ekuphathweni kwempahla, ezolimo nokufuywa kwezilwane, inkokhelo yezokuthutha neminye imikhakha. Nakuba ubuchwepheshe be-RFID bubhekene nezinselelo ezifana nezindleko nokumiswa, ukuba lula kwabo nokusebenza kahle kukhuthaze ukuthuthukiswa kokuphatha okuhlakaniphile.

Ukusetshenziswa okubanzi kobuchwepheshe be-RF

Ubuchwepheshe be-RF bukhanya emikhakheni yokuxhumana okungenantambo, ukuxhumana ngesathelayithi, ukutholwa kwe-radar, ukuxilongwa kwezokwelapha kanye nokulawulwa kwezimboni. Kusukela kumanethiwekhi e-WLAN kuya kuma-electrocardiographs, kusukela ekuhlolweni kwenkundla yempi kuya ezimbonini ezihlakaniphile, ubuchwepheshe be-RF buthuthukisa inqubekelaphambili yezobuchwepheshe futhi bushintsha indlela yethu yokuphila.

Nakuba ubuchwepheshe be-RF busabhekene nezinselele, ngokuthuthukiswa kwesayensi nobuchwepheshe, buzoqhubeka budabula emisha futhi bulethe amathuba amaningi esikhathi esizayo!