Faɗin babban lobe
Ga kowane eriya, a mafi yawan lokuta, samansa ko tsarin jagorar samansa gabaɗaya siffar fure ce, don haka tsarin jagora kuma ana kiransa tsarin lobe.Lobe tare da matsakaicin shugabanci na radiation ana kiransa babban lobe, sauran kuma ana kiransa lobe na gefe.
Faɗin lobe yana ƙara zuwa kashi rabin iko (ko 3dB) faɗin lobe da faɗin lobe na sifili.Kamar yadda aka nuna a cikin hoton da ke ƙasa, a ɓangarorin biyu na matsakaicin ƙimar babban lobe, kusurwar tsakanin kwatancen biyu inda ikon ya ragu zuwa rabi (sau 0.707 na ƙarfin filin) ana kiransa girman lobe mai ƙarfi.
Kusurwar da ke tsakanin kwatance guda biyu inda ƙarfin wuta ko filin ya sauko zuwa sifilin farko ana kiransa faɗin lobe mai ƙarfin sifili.
Antenna polarization
Polarization wani muhimmin sifa ne na eriya.Polarization mai watsawa na eriya shine yanayin motsi na filin lantarki na ƙarshen ƙarshen eriyar watsawa mai haskaka igiyoyin lantarki ta wannan hanyar, kuma karɓar polarization shine yanayin motsi na ƙarshen filin lantarki na tashar jirgin sama mai karɓar eriya a cikin wannan. hanya.
Polarization na eriya yana nufin polarization na takamaiman filin vector na igiyoyin rediyo, da yanayin motsi na ƙarshen batu na filin lantarki a ainihin lokacin, wanda ke da alaƙa da jagorancin sararin samaniya.Eriya da ake amfani da ita a aikace sau da yawa yana buƙatar polarization.
Za'a iya rarraba polarization zuwa polarization na layi, madauwari mai ma'ana da polarization elliptic.Kamar yadda aka nuna a cikin hoton da ke ƙasa, inda yanayin ƙarshen madaidaicin filin lantarki a cikin Hoto (a) shine madaidaiciyar layi, kuma kusurwa tsakanin layin da axis X ba ya canzawa tare da lokaci, ana kiran wannan igiyar polarized. igiyar igiyar ruwa ta layi.
Lokacin da aka lura tare da hanyar yadawa, jujjuyawar filin lantarki ta agogon hannu ana kiranta igiyar da'ira mai madauwari ta hannun dama, kuma ana kiran jujjuyawar ta gefen agogon hannun hagu.Lokacin da aka lura akasin alkiblar yaduwa, taguwar ruwa na hannun dama suna jujjuya agogo baya da hannun hagu kuma suna juya agogon hannu.
Abubuwan radar don eriya
A matsayin eriyar radar, aikinsa shine ya canza filin igiyar ruwa mai shiryarwa wanda mai watsawa ya haifar zuwa filin radiation sararin samaniya, karɓar amsawar da aka nuna a baya ta hanyar manufa, da kuma canza ƙarfin amsawar zuwa filin igiyar ruwa mai jagora don watsawa ga mai karɓa.Abubuwan buƙatun radar don eriya gabaɗaya sun haɗa da:
Yana ba da ingantaccen canjin makamashi (wanda aka auna a ingancin eriya) tsakanin filin radiation sararin samaniya da layin watsawa;Babban ingancin eriya yana nuna cewa ana iya amfani da ƙarfin RF ɗin da mai watsawa ke samarwa yadda ya kamata
Ikon mayar da hankali kan makamashi mai ƙarfi a cikin alkiblar manufa ko karɓar ƙarfin mitar mai girma daga alkiblar abin da aka auna (wanda aka auna cikin ribar eriya)
Ana iya sanin rarraba makamashin filin radiyon sararin samaniya bisa ga aikin sararin samaniyar radar (wanda aka auna ta zanen jagorar eriya).
Madaidaicin sarrafa polarization ya dace da halayen polarization na manufa
Tsarin injiniya mai ƙarfi da aiki mai sassauƙa.Binciken sararin da ke kewaye zai iya bin diddigin maƙasudi da kariya daga tasirin iska
Haɗu da buƙatun dabara kamar motsi, sauƙin kamanni, dacewa don takamaiman dalilai, da sauransu.
Lokacin aikawa: Fabrairu-14-2023
