I-Antenna luhlobo lwezixhobo eziqhelekileyo, ezisetyenziswa ngokubanzi kunomathotholo, umabonwakude, unxibelelwano lukanomathotholo, irada, ukuhambahamba, ukulinganisa i-electronic countermeasures, i-remote sensing, i-astronomy yerediyo kunye nezinye iinkalo.I-eriyali sisixhobo esinokusasaza ngokufanelekileyo amaza e-electromagnetic ukuya kwicala elithile esikhaleni okanye samkele amaza ombane we-electromagnetic asuka kwicala elithile esithubeni.Nasiphi na isixhobo esihambisa imiqondiso ngamaza ombane kufuneka siphathe i-eriyali.
Sifumanisa kubomi bethu bemihla ngemihla ukuba ukuguqula okanye ukunweba i-antenna yerediyo okanye ithelevishini, ngabom okanye ngokungeyomfuneko, kunokuchaphazela umgangatho wesiginali.Ngapha koko, itshintsha iiparamitha ze-antenna kwaye ichaphazela ulwamkelo lwamaza ombane.Isiphumo sokudlulisa kunye nokufumana i-eriyali ihambelana ngokusondeleyo neeparamitha ze-eriyali.Apha sazisa ezinye iiparamitha ezisisiseko ze-eriyali.
1. Ibhendi yamaza okusebenza
I-eriyali ihlala isebenza ngaphakathi kwinqanaba elithile (ububanzi bebhendi), oluxhomekeke kwiimfuno zesalathisi.Uluhlu lwamafrikhwensi oluhlangabezana neemfuno zesalathiso yi-frequency yokusebenza kwe-eriyali.Iibhendi zefrikhwensi ezisetyenziswa ngabaqhubi ziyahluka ngeesistim ezahlukeneyo ezingenazingcingo.Ke ngoko, ii-eriyali ezineebhendi ezifanelekileyo kufuneka zikhethwe.
2. Ukuzuza
Ukuzuza kwe-eriyali kubhekiselele kumlinganiselo woxinaniso lwamandla ophawu oluveliswe yi-eriyali yokwenyani kunye neyunithi efanelekileyo yokusasazeka kwemitha kwindawo enye esithubeni phantsi kwemeko yegalelo elilinganayo lamandla.Inzuzo ihambelana ngokusondeleyo nepateni ye-eriyali.I-lobe engundoqo iyancipha kwaye incinci i-sidelobe, iphezulu inzuzo.Ukuzuza kwe-eriyali ngumlinganiselo wokukwazi kwe-eriyali ukukhupha amaza ombane kwicala elithile.Kufuneka kuqatshelwe ukuba i-eriyali ngokwayo ayiwandisi amandla omqondiso we-radiated, kodwa igxininisa amandla kwicala elithile ngokudibanisa i-antenna vibrators kunye nokutshintsha indlela yokutya.
3. Ubungakanani boluhlu
I-Bandwidth yenye iparameter ye-eriyali esisiseko.I-Bandwidth ichaza uluhlu lweefrikhwensi apho i-eriyali inokukhanya ngokuchanekileyo okanye ifumane amandla.Ii-antenna ezine-bandwidth encinci kakhulu azinakusetyenziselwa izicelo zebroadband.
Kubomi bokwenyani, ukuze kuhlangatyezwane neemfuno ezahlukeneyo, iinjineli ziye zavelisa iintlobo ngeentlobo zee-eriyali.Eyona ixhaphakileyo yile Antenna ende, ebizwa ngokuba yi-eriyali ye-Vertical monopole, okanye i-eriya ye-GP, efumaneka kwizixhobo eziphathwa ngesandla.
Le yi-antenna ye-Yagi edumileyo, eyenziwe ngeeyunithi ezininzi, kwaye ine-directional eyomeleleyo, izikhokelo ezingaphezulu, indlela eya phambili, inzuzo ephezulu.
Sihlala sibona olu hlobo lwe-antenna yesitya eluphahleni lwendlu.Yi-eriyali eyalatha kakhulu esetyenziselwa ngokukodwa unxibelelwano olude.Inobubanzi obumxinwa kakhulu kunye nexabiso eliphezulu kakhulu lokuzuza, elinokuthi libizwe ngokuba yi-antenna yokuzuza okuphezulu.
Iimilo ze-eriyali ziyamangalisa,
Nguwe kuphela onokucinga,
Ayinakuyenza ngaphandle kwe-MHZ-TD
Ixesha lokuposa: Dec-16-2022
