Awehewehe manaka wehea he tohu e haere mai ana kia rua (neke atu rānei) ngā tohu putanga. I te wā tino pai, ka taea te kī he kore-ngaro te wehewehe mana, engari i roto i te mahi ka noho tonu te horapa o te mana. Nā te mea he whatunga tauutuutu, ka taea hoki te whakamahi i te whakakotahi mana hei whakakotahi mana, ina whakamahia ngā tauranga e rua (neke atu rānei) hei whakakotahi i ngā tohu tāuru ki roto i te putanga kotahi. I roto i te ariā, ka taea e te wehewehe mana me te whakakotahi mana te noho hei wāhanga kotahi, engari i roto i te mahi ka rerekē pea ngā whakaritenga mō ngā whakakotahi me ngā wehewehe, pērā i te whakahaere mana, te taurite ā-wāhanga, te taurite tauranga me te wehewehe.
E kiia ana ngā wehewehe hiko me ngā whakakotahi he wehewehe. Ahakoa he tika tēnei i te taha hangarau, ko te tikanga o te kupu "wehewehe" he hanganga ātete iti te utu e wehewehe ana i te mana i runga i te whānuitanga whānui, engari he nui te mate me te iti o te whakahaere mana.
Ko te kupu "wehewehe" te mea e whakamahia whānuitia ana ina wehea te tohu e taumai ana kia ōrite puta noa i ngā putanga katoa. Hei tauira, mēnā e rua ngā putanga putanga, ka whiwhi ia putanga i te iti iho i te haurua o te tohu tāuru, ko te mea pai ko te -3 dB ki te whakataurite ki te tohu tāuru. Mēnā e whā ngā putanga putanga, ka whiwhi ia putanga i te hauwhā o te tohu, i te -6 dB rānei ki te whakataurite ki te tohu tāuru.
Te noho motuhake
I te wā e whiriwhiri ana i te momo wehewehe, i te momo whakakotahi rānei hei whakamahi, he mea nui kia whakaarohia te wehewehe. Ko te tikanga o te wehewehe teitei, kāore ngā tohu taupatupatu (i roto i te whakakotahi) e pokanoa tetahi ki tetahi, ā, ko te kaha kāore e tukuna ki te putanga ka marara, kaua ki te tuku ki te tauranga putanga. He rerekē ngā huarahi e whakahaere ai ngā momo wehewehe rerekē i tēnei. Hei tauira, i roto i te wehewehe Wilkinson, he uara 2Z0 te ātete, ā, kua herea puta noa i ngā putanga. I roto i te hononga tapawhā, he mutunga kei te tauranga tuawhā. Kāore te mutunga e marara te kaha ki te kore e puta he mea kino, pērā i te pakaru o tētahi amp, i ngā āhua rerekē rānei o ngā amp.
Ngā Momo Wehewehe
He maha ngā momo me ngā momo momo wehewehe mana, ngā whakakotahi rānei. Ko ētahi o ngā mea e tino kitea ana ko:
Ka wehea e te wehewehe Wilkinson te tohu tāuru kia rua ngā tohu putanga āhua ōrite, ka whakakotahi rānei i ngā tohu āhua ōrite e rua kia kotahi i te taha whakamuri. Ka whakawhirinaki te wehewehe Wilkinson ki ngā whakawhiti hauwhā-ngaru hei taurite i te tauranga wehewehe. Ka whakatakotoria he ātete puta noa i ngā putanga, ā, kāore e kino ki te tohu tāuru i te Tauranga 1. Ka tino whakapai ake tēnei i te wehenga, ā, ka taea te taurite i te aukati i ngā tauranga katoa. He maha ngā wā ka whakamahia tēnei momo wehewehe i roto i ngā pūnaha auau reo irirangi maha-hongere nā te mea ka taea e ia te whakarato i te taumata wehenga teitei i waenga i ngā tauranga putanga. Mā te whakatō i ngā wāhanga hauwhā-ngaru maha, ka taea e Wilkinson te whakahaere ngāwari i ngā whānui 9:1 o ngā pūnaha pakanga hiko.
E ai ki te ingoa, ka wehea e te wehewehe mana RF/ngaruiti te tohu tāuru kia rua ngā tohu ōrite, ōrite hoki (arā, i roto i te wāhanga). Ka taea hoki te whakamahi hei whakakotahi mana, ko te tauranga noa te putanga, ā, ko ngā tauranga mana ōrite e rua hei tāuru. Ko ngā whakaritenga nui ina whakamahia hei wehewehe mana ko te ngaronga whakaurunga, te kaha me te taurite wāhanga i waenga i ngā ringa, me ngā ngaronga whakahoki. Mō te whakakotahi mana o ngā tohu kāore e pā ana, ko te whakaritenga tino nui ko te wehenga, arā, ko te ngaronga whakaurunga mai i tētahi tauranga mana ōrite ki tētahi atu.
Ngā Wehewehe ManaNgā Āhuatanga
• Ka taea te whakamahi i ngā wehewehe hiko hei whakakotahi, hei wehewehe rānei
• Ka tukuna e ngā wehewehe mana whakawehewehe Wilkinson me High te whakawehewehe teitei, ka aukati i te whakawhitiwhiti tohu i waenga i ngā tauranga putanga
• He iti te ngaronga whakaurunga me te whakahokinga
• He pai rawa atu te kaha (<0.5dB) me te taurite ā-wāhanga (<3°) nā ngā wehewehe mana ātete me Wilkinson
He whānuitanga o ngā wehewehe hiko ara-rua a Si Chuan Keenlion Ngāwariu, kei roto i ngā whirihoranga whāiti me te whānui, e kapi ana i ngā auau mai i te DC ki te 50 GHz. Kua hangaia hei whakahaere i te mana whakauru mai i te 10 ki te 30 watts i roto i te pūnaha tuku 50-ohm. Ka whakamahia ngā hoahoa moroiti, raina rānei, ā, ka arotauhia mō te mahi pai rawa atu.
Kei ngā waeine he hononga SMA, he hononga N rānei, he hononga 2.92mm, 2.40mm, me te 1.85mm rānei mō ngā wāhanga auau teitei.
Ka taea hoki e mātou te whakarite i te wehewehe hiko kia rite ki ō hiahia. Ka taea e koe te tomo ki te whārangi whakaritenga hei whakarato i ngā whakaritenga e hiahiatia ana e koe.
Wā tuku: Akuhata-09-2022
