Mayelana nothi lwe-TV wonke umuntu alujwayele, khumbula i-TV endala emnyama nemhlophe, iyi-antenna yayo yase ithuthukiswa yaba yi-antenna ye-TV yangaphandle.Kodwa kuze kube manje, ubuchwepheshe be-antenna ye-TV nokuvuthwa okwengeziwe, manje i-antenna ingahlangabezana nezidingo zethu ekuphileni, abangane abaningi emakethe ukuthenga i-antenna, emuva ekhaya ngeke ukufakwa kwesayensi.Angazi ukuthi i-antenna isebenza kanjani, angazi ukuthi ngiyifake kuphi.Namuhla, ngizokwethula ekufakweni kwe-antenna ye-TV ukuze wenze incazelo enemininingwane, ngithemba ukukusiza.
1. Umgomo wokusebenza kanye nomsebenzi we-antenna
Njengengxenye ebalulekile yokuxhumana okungenantambo, umsebenzi oyisisekelo we-antenna ukukhanyisa nokwamukela amaza omsakazo.Lapho udlulisela, i-high-frequency current iguqulwa ibe yi-electromagnetic wave;Lapho ithola, i-wave shock wave iguqulwa ibe i-high frequency current.
Okwesibili, uhlobo lwe-antenna
Kunezinhlobonhlobo eziningi zezimpondo, futhi zingahlukaniswa ngezigaba ezilandelayo: Isiteshi sesisekelo Izimpondo nezimpondo eziphathwayo eziphathwayo zingahlukaniswa ngamagagasi amade, igagasi elide, igagasi eliphakathi, igagasi elifushane, i-ultra-short wave, neMicrowave. Ama-Antenna okusetshenziswa kwawo;Ngokusho kokuqondisa kwayo, ingahlukaniswaama-antenna angama-intoomnidirectional kanye nokuqondisa.
Okwesithathu, indlela yokukhetha uthi
I-antenna iyingxenye ebalulekile yesistimu yokuxhumana, ukusebenza kwayo kuthinta ngokuqondile inkomba yesistimu yokuxhumana, abasebenzisi kufanele banake ukusebenza kwayo lapho bekhetha i-antenna.Ngokucacile, kunezici ezimbili, uhlobo lokuqala lwe-antenna;Ukusebenza kukagesi kwe-antenna yesibili yokukhetha.Ukubaluleka kokukhetha uhlobo lwe-antenna ukuthi: noma iphethini yokuma kwe-antenna ekhethiwe iyahambisana nemfuneko yokumbozwa kwegagasi lomsakazo ekwakhiweni kwesistimu;Izidingo zokukhetha ukusebenza kukagesi kwe-antenna zimi kanje: Khetha ukuthi izicaciso zikagesi ze-antenna, ezifana nomkhawulokudonsa wefrikhwensi, ukuzuza, namandla alinganiselwe, ziyahlangabezana yini nezidingo zedizayini yesistimu.Ngakho-ke, umsebenzisi kufanele axhumane nomkhiqizi kangcono lapho ekhetha uthi.
Okwesine, ukuzuza kwezinti
Inzuzo ingenye yezinkomba eziphambili ze-antenna.Iwumkhiqizo we-coefficient yokuqondisa nokusebenza kahle, futhi iwukuvezwa kwemisebe noma usayizi wamagagasi owamukelwe we-antenna.Ukukhetha usayizi wenzuzo kuncike ezidingweni zedizayini yesistimu yendawo yokumboza igagasi lomsakazo.Kalula nje, ngaphansi kwezimo ezifanayo, lapho inzuzo iphezulu, ibanga lokusakazeka kwegagasi lomsakazo liba kude.Ngokuvamile, i-antenna yesiteshi esiyisisekelo ithatha i-antenna enenzuzo ephezulu, futhi i-antenna yesiteshi esihambayo ithatha i-antenna enenzuzo ephansi.
Isikhathi sokuthumela: Apr-27-2023
