Ukuphathwa kwamandla kwezihlanganisi ze-RF coaxial kuya kuncipha njengoko isantya sesignali sisanda. Utshintsho lwesantya sesignali yokudlulisa lukhokelela ngokuthe ngqo kutshintsho kwilahleko kunye nomlinganiselo wamaza okuma kwevolthi, nto leyo echaphazela amandla okudlulisa kunye nefuthe lesikhumba. Umzekelo, ukuphathwa kwamandla kwesihlanganisi se-SMA ngokubanzi kwi-2GHz malunga ne-500W, kwaye ukuphathwa kwamandla okuqhelekileyo kwi-18GHz kungaphantsi kwe-100W.
Ukuphathwa kwamandla okukhankanyiweyo apha ngasentla kubhekisa kumandla e-wave aqhubekayo. Ukuba amandla okufaka ashukunyiswa, ukuphathwa kwamandla kuya kuba phezulu. Ekubeni izizathu ezingentla ziyimiba engaqinisekanga kwaye ziya kuchaphazelana, akukho fomula enokubalwa ngokuthe ngqo. Ke ngoko, isalathisi sexabiso lomthamo wamandla ngokubanzi asinikwa kwizihlanganisi ngazinye. Kuphela kwizalathisi zobugcisa zezixhobo ze-microwave ezingasebenziyo ezifana nee-attenuators kunye nemithwalo apho umthamo wamandla kunye ne-instantaneous (ngaphantsi kwe-5μs) maximum power index ziya kulinganiswa.
Qaphela ukuba ukuba inkqubo yokudlulisela ayihambelani kakuhle kwaye igagasi elimileyo likhulu kakhulu, amandla akwisixhumi anokuba makhulu kunamandla okufaka. Ngokubanzi, ngenxa yezizathu zokhuseleko, amandla afakwe kwisixhumi akufuneki adlule i-1/2 yamandla alo omda.
Amaza aqhubekekayo aqhubeka kwi-time axis, ngelixa amaza e-pulse engaqhubeki kwi-time axis. Umzekelo, ukukhanya kwelanga esikubonayo kuyaqhubeka (ukukhanya yi-electromagnetic wave eqhelekileyo), kodwa ukuba ukukhanya ekhayeni lakho kuqala ukudanyaza, kunokubonwa njengokwimo ye-pulses.
Ukuze ufunde okungakumbi ngee-antenna, nceda undwendwele:
Ixesha leposi: Novemba-08-2024
