Ka heke te mana whakahaere o ngā hononga RF coaxial i te pikinga ake o te auau tohu. Ko te huringa o te auau tohu tuku ka arahi tika ki ngā huringa o te ōwehenga ngaru tū me te ngaohiko, ka pā ki te kaha mana tuku me te pānga kiri. Hei tauira, ko te mana whakahaere o te hononga SMA whānui i te 2GHz he tata ki te 500W, ā, ko te mana whakahaere toharite i te 18GHz he iti iho i te 100W.
Ko te whakahaere mana kua whakahuatia i runga ake nei e pā ana ki te mana ngaru tonu. Mena ka pā te mana whakauru, ka teitei ake te whakahaere mana. Nā te mea he āhuatanga koretake ngā take i runga ake nei, ā, ka pā tetahi ki tetahi, kāore he tātai ka taea te tatau tika. Nō reira, kāore te taupū uara kaha mana e hoatuhia mō ngā hononga takitahi. I roto anake i ngā tohu hangarau o ngā taputapu ngaruiti kore mahi pērā i ngā whakaiti me ngā kawenga ka whakatauritea te kaha mana me te taupū mana mōrahi inamata (iti iho i te 5μs).
Kia mōhio mai, ki te kore te tukanga tuku e tino ōrite, ā, he nui rawa te ngaru tū, tera pea ka nui ake te mana e mau ana i te hononga i te mana whakauru. I te nuinga o te wā, mō ngā take haumaru, kaua te mana e utaina ana ki te hononga e neke ake i te 1/2 o tōna mana rohe.
He tonu ngā ngaru tonu i runga i te tuaka wā, engari kāore ngā ngaru pāorooro e tonu i runga i te tuaka wā. Hei tauira, he tonu te hihi o te rā e kitea ana e tātou (he ngaru hikohiko noa te mārama), engari ki te tīmata te mārama i roto i tō whare ki te kimo, ka taea te kī he rite ki ngā pāorooro.
Mō ētahi atu kōrero mō ngā antenna, tirohia:
Wā tuku: Whiringa-ā-rangi-08-2024
