hat
Ki sa ki se matche ak la? Senpleman mete, tèminal la feeder ki konekte nan zl la enpedans chaj ki egal a feeder la Z0 enpedans karakteristik, se tèminal la feeder rele yon koneksyon matche. Matche ak, gen sèlman transmèt nan ensidan an chaj tèminal feeder, epi li se pa gen okenn chaj ki te pwodwi pa tèminal la nan vag nan reflete, Se poutèt sa, chay la antèn kòm yon tèminal, asire ke antèn la matche yo jwenn tout siyal pouvwa a. Menm jan yo montre anba a, nan menm jou a lè yo enpedans nan liy nan om 50, ak yon câbles om 50 matche, ak jou a lè enpedans nan liy nan 80 om, ak yon câbles om 50 yo mismatched.
eng
What is the match? Simply put, the feeder terminal connected to the load impedance ZL is equal to the characteristic impedance Z0 feeder, the feeder terminal is called a matching connection. Match, there is only transmitted to the feeder terminal load incident, and no load is generated by the terminal of the reflected wave, therefore, the antenna load as a terminal, to ensure that the antenna matching to obtain all the signal power. As shown below, the same day when the line impedance of 50 Ohms, with a 50 ohm cables are matched, and the day when the line impedance of 80 Ohms, with a 50 ohm cables are mismatched.