hat
Konnen tou kòm "U" balun nan tib ki gen fòm, ki te itilize balans dezekilib feeder chaj kowaksyal kab la ak yon mwatye onn koneksyon dipol ant. "U" tib ki gen fòm gen yon 1: 4 efè transfòmasyon balun enpedans. Sistèm mobil kominikasyon lè l sèvi avèk kowaksyal enpedans karakteristik kab anjeneral se 50 nan Ewòp, se konsa nan Yagi antèn, lè l sèvi avèk yon mwatye onn dipol ekivalan a ajisteman nan enpedans 200 Euro oswa konsa, reyalize ultim ak prensipal enpedans feeder 50 om kowaksyal kab la .
eng
Also known as the "U" shaped tube balun, which is used to balance the load unbalanced feeder coaxial cable with a half-wave dipole connection between. "U" shaped tube there is a 1:4 balun impedance transformation effect. Mobile communication system using coaxial cable characteristic impedance is typically 50 in Europe, so in YAGI antenna, using a half-wave dipole equivalent to the impedance adjustment to 200 Euro or so, to achieve the ultimate and main feeder impedance 50 ohm coaxial cable .