Ukuqala kukagesi kumakwe ukuqala kwenguquko yesibili yezimboni.Kuqala, sihlobanisa ugesi ngezinhlobo ezahlukahlukene zezintambo, ezisukela emigqeni yokuhambisa i-highUgqugquzelwe amasu afana nokushaja kukaTesla's electromagnetic actergiment kanye ne-hertz's electronnetic wave, kwaqhamuka isifiso esihlanganayo sokudlula umkhawulo wezintambo, okuhlose umhlaba oxhumene nalutho - i-Intanethi yazo yonke into.Enhliziyweni yalesi sifiso seRadio Frequency Frequency (RF), indlela eyisisekelo yokuxhumanisa konke.
Ukubeka emsindweni we-RF, sithola ukuthi ngokuyisisekelo mayelana nemisebe ye-electromagnetic (i-EMR), okuhlanganisa amasimu kagesi nawamazibuthe.Ukuvela kwamandla kagesi kusho ukuba khona kwenkambu kagesi, njengoba ngokwezibalo, i-voltage kulingana nezinga lokushintsha kwenkambu kagesi.Ngokufanayo, ukuba khona kwangakhona kukhombisa amandla kazibuthe, amandla awo alingana ngobukhulu bamanje.Ngakho-ke, ukuba khona kwamandla kagesi futhi okukhona kwaholela ekutheni kuholele ekutheni ubukhona bamandla kagesi nawamazibuthe.Kodwa-ke, ingabe ukuba khona kwalezi zinkundla kuqinisekisa ukukhiqizwa kwemisebe ye-electromagnetic?Ngokusho kwezibalo zikaMaxwell, yizinkundla eziguqukayo zikagesi nezezibuthe ezikhiqiza amagagasi e-electromagnetic.
Ngakho-ke, ngama-voltages ahlukahlukene nemisinga ebalulekile.Ukusakazeka kwalawa magagasi kulawulwa yi-interplay yokuzisekela phakathi kwezingxenye zikagesi nezezibuthe ze-EMR.Inkambu kagesi eshintshayo izala amandla kazibuthe, futhi okuphambene nalokho, kubonakaliswa njengamagagasi e-electromagnetic.Lawa magagasi, ake akhiqizwa, uhambo ngokungapheliyo ngejubane lokukhanya, ukunqamula amabanga amabanga angaziwa.
Imisebe ye-electromagnetic, empeleni, iqondile impela.Njengoba kugqanyisiwe ngaphambili, ukuguqula amasimu kagesi nezezibuthe kuholela esizukulwaneni samagagasi e-electromagnetic.Kunoma yimuphi umjikelezo, imiphumela yamanje yamanje noma ye-voltage e-EMR, ngisho nasemasignali edijithali.Imvamisa, le misebe iyimisindo nje, ayinakwa ngaphandle kokuthi ivumelane nezinhlelo zokuxhumana.Kodwa-ke, lapho kubangela ukuphazamiseka, kubhekise ukuphazamiseka kwe-electromagnetic (i-EMI), kudinga ukuncipha.I-RF Design-ke, idlula isizukulwane se-EMR;Ifaka ubuciko kanye nesayensi yokwakha, ekukhohliseni, nokutolika, ukutolika i-EMR ukuze kudluliselwe ngokuthembekile imininingwane enobuntu phakathi kwamasekethe ngaphandle kokuxhumeka kukagesi ngqo.
Umklamo we-wireless system empeleni ujikeleze ngokukhiqiza nokulawula imisebe ye-electromagnetic ewusizo.Le misebe ewusizo yakha umgogodla wokuxhumana okungenantambo futhi kwakha ukugxila okuyisisekelo kocwaningo lwe-RF nokuklama.
Imisebe ye-electromagnetic isebenza njengomlingani oyisipele ongenantambo ekuxhumaneni ngocingo okusetshenziswa emibuthanweni enezintambo.Kungakhathalekile ukuthi izintandokazi zethu, imisinga ehlukahlukene isikhathi namavoloshi akhiqiza ngokungafanele i-EMR, ekhombisa ngokunembile isakhi sesiginali yokuqala.
Le i-EMR elawulwa iphendula kakhulu futhi inamandla, iqinisekisa ukukhiqizwa kabusha okuthembekile kwesiginali ye-RF edlulisiwe, ngisho namagagasi ayinkimbinkimbi aphezulu aphezulu ezinhlelweni ezithuthukile ze-wireless.Ngaphezu kwalokho, amagagasi we-electromagnetic ahamba ngokushesha okukhulu, ngejubane lokukhanya, isivinini esizoncishiswa kakhulu nge-Carriers ehlukile yesiginali.
Ngaphandle kokusakazeka kwayo okusheshayo, i-EMR ingahamba amabanga amabanga umxhwele.Ukufuna ukuxhumana okungenantambo kuxhunyaniswe ngokuxhunyaniswa nokukhulumisana okude;Amabanga amafushane ajwayele ukwenza izixazululo ezinezintambo zisebenze kakhulu futhi zibize kakhulu.Yize amandla e-RF Signal anciphisa ukulandela umthetho wesikwele ophambene, i-EMR, ehlanganiswe ngamasu wokushintshanisa kanye nokujikeleza okuyisisekelo, kugcina umthamo obalulekile wokudluliselwa kwesiginali okude.
Ngokumangazayo, amagagasi e-electromagnetic e-RF band angangena ezindongeni, amapulasitiki, nezinye izinto zansuku zonke, ngokungafani nokukhanya, okudinga ukusakazeka komugqa.Izicelo zayo ziguquguqukayo, futhi imisebe ethile ye-electromagnetic ye-electromagnetic ephansi ephansi icishe icishe i-Omnipresent.