A babi na baya, mun tattauna tsarin radiation. Domin yin nazari sosai kan radiation na eriya, ana buƙatar wurin tunani. Hasken eriya mai kama da isotropic yana cika wannan rawar.
Ma'anar
Hasken isotropic yana nufin radiation daga tushen ma'ana wanda ke yaduwa daidai gwargwado a kowane bangare, tare da irin wannan ƙarfi ba tare da la'akari da alkiblar aunawa ba. Kullum ana kimanta ci gaban tsarin hasken eriya ta amfani da radiation isotropic a matsayin ma'auni. Idan hasken ya yi daidai a duk kwatance, ana kiransa radiation isotropic.
• Tushen ma'auni misali ne na radiator na isotropic. Duk da haka, irin wannan radiation na isotropic kusan ba zai yiwu a cimma ba, saboda kowace eriya tana haskaka makamashinta da wani abu kai tsaye.
•Hasken Isotropic daidai yake da hasken da ke kaiwa ga kowane gefe.
•Idan aka duba shi a cikin 3D, yana da tsari mai siffar donut; idan aka duba shi a cikin 2D, yana da tsari mai siffar takwas.
Hoton da ke sama yana nuna tsarin hasken rana na na'urar radiator mai isotropic (ko omnidirectional). Hoto na 1 yana nuna tsarin da aka yi da donut a cikin 3D, yayin da Hoto na 2 ya nuna tsarin da aka yi da siffa ta takwas a cikin 2D.
Riba
Na'urar radiator ta isotropic tana da ribar haɗin kai, ma'ana ribar ita ce 1 a duk kwatance. Idan aka bayyana ta a cikin decibels (dB), ana kiranta da ribar 0 dB (rashin sifili).
Ƙarfin Hasken Radiation Mai Daidaito (EIRP)
A bisa ga ma'anar da aka saba amfani da ita, adadin ƙarfin da eriya mai isotropic ke haskawa don samar da ƙarfin kololuwar da aka gani a cikin alkiblar samun mafi girman eriya ana kiransa Equivalent Isotropically Radiated Power.
Idan aka taru a gefe ɗaya ko kuma a wani takamaiman alkibla, kuma hasken da ke cikin wannan alkiblar yayi daidai da ƙarfin hasken da ke cikin eriya, ana kiran wannan hasken da EIRP.
Riba
Duk da cewa hasken isotropic wani abu ne kawai da aka tsara, yana wakiltar mafi kyawun hasken da eriya za ta iya samu. Irin wannan eriya tana da ribar 3 dBi, inda 3 dB ya yi daidai da factor na 2, kuma "i" yana nuna ma'auni dangane da yanayin isotropic.
Idan an mayar da hasken zuwa wani kusurwa, EIRP yana ƙaruwa tare da ribar eriya. Samun eriya mafi kyau shine ta hanyar mai da haskenta zuwa wani alkibla.
Ingancin Ƙarfin Haske (ERP)
Idan an ƙididdige ƙarfin da aka haskaka ta hanyar la'akari da eriyar dipole ta rabin-wave maimakon eriyar isotropic, ana kiranta da Inganci Radiated Power (ERP).
ERP(dBW)=EIRP(dBW)−2.15 dBi
Idan an san EIRP, ana iya ƙididdige ERP ta amfani da dabarar da aka bayar a sama.
Don ƙarin koyo game da eriya, da fatan za a ziyarci:
Lokacin Saƙo: Afrilu-17-2026
