Ko te wehewehe hiko Wilkinson he wehewehe tauhohe e whakamahi ana i ngā whakawhiti raina tuku hauwhā-roa e rua, whakarara, kāore i honoa. Mā te whakamahinga o ngā raina tuku ka māmā ake te whakatinana i te wehewehe Wilkinson mā te whakamahi i ngā raina tuku ara iahiko tānga paerewa. Ko te roa o ngā raina tuku ka whakawhāiti i te whānuitanga auau o te wehewehe Wilkinson ki ngā auau neke atu i te 500 MHz. Mā te ātete i waenga i ngā tauranga putanga ka taea e rātou te whai i ngā aukati ōrite me te whakarato tonu i te wehenga. Nā te mea kei roto i ngā tauranga putanga ngā tohu o te kaha me te āhua ōrite, kāore he ngaohiko puta noa i te ātete, nō reira kāore he iahiko e rere ana, ā, kāore te ātete e whakakore i tetahi mana.
Ngā wehewehe hiko
He tohu tāuru kotahi te wehewehe mana, ā, he tohu putanga e rua, neke atu rānei. Ko te taumata mana o ngā tohu putanga ko te 1/N te taumata mana tāuru, ko N te maha o ngā putanga i roto i te wehewehe. Ko ngā tohu i ngā putanga, i roto i te momo wehewehe mana tino noa, kei roto i te āhua ā-wāhanga. He wehewehe mana motuhake kei reira e whakarato ana i ngā nekehanga ā-wāhanga whakahaere i waenga i ngā putanga. Ko ngā tono RF noa mō ngā wehewehe mana, e ai ki te kōrero i mua ake nei, ka tuku i tētahi pūtake RF noa ki ngā taputapu maha (Pikitia 1).
Te hoahoa o te pūtake RF e anga ana ki ngā taputapu maha
Pikitia 1: E whakamahia ana ngā wehewehe mana hei wehewehe i tētahi tohu RF noa ki ngā taputapu maha pērā i te pūnaha pūihi whakarārangi wāhanga, i te whakawehewehe tapawhā rānei.
Ko te tauira he pūihi whakarārangi ā-wāhanga kei reira te pūtake RF e wehea ana i waenga i ngā huānga pūihi e rua. Ko ngā pūihi o tēnei momo he rua ki te waru, neke atu rānei ngā huānga, ā, ko ia huānga ka peia mai i tētahi tauranga putanga wehewehe mana. Ko ngā nekehanga ā-wāhanga kei waho i te wehewehe hei tuku i te mana hiko ki te urungi i te pūihi tauira mara.
Ka taea te whakahaere i te wehewehe mana "whakamuri" kia taea ai te whakakotahi i ngā tāuru maha ki roto i te putanga kotahi, ka waiho hei whakakotahi mana. I roto i te aratau whakakotahi, ka taea e ēnei taputapu te mahi tāpiri, te tango rānei i ngā tohu i runga i ō rātou uara kaha me te āhua.
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
• Ngā otinga maha-octave mai i te DC ki te 50 GHz
Ako atu mō ngā Wehewehe Mana
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, ngā ngaronga whakahoki, me te taurite whānui me te wāhanga i waenga i ngā ringa. Mō te whakakotahi mana o ngā tohu kāore e pā ana, pērā i te wā e mahi ana i ngā whakamātautau whakapōturitanga whakawhitiwhiti tika (IMD) pērā i te IP2 me te IP3, ko te whakaritenga tino nui ko te wehewehe i waenga i ngā tauranga tāuru.
E toru ngā momo matua o ngā wehewehe hiko RF me ngā whakakotahi hiko RF: 0º, 90º ranu, me te 180º ranu. Ka wehea e ngā wehewehe RF kore-tohu te tohu tāuru kia rua, neke atu rānei ngā tohu putanga e ōrite ana te kaha me te āhua. Ka honoa e ngā whakakotahi RF kore-tohu ngā tohu tāuru maha hei whakarato i te putanga kotahi. I te wā e whiriwhiri ana i ngā wehewehe 0º, he mea nui te wehewehe wehewehe mana hei whakaaro. Ko tēnei tawhā ko te maha o ngā putanga o te taputapu, te maha rānei o ngā huarahi e wehea ai te tohu tāuru i te putanga. Kei roto i ngā kōwhiringa ko ngā taputapu 2, 3, 4, 5, 6, 7, 8, 9, 12, 16, 32, 48, me te 64-ara.
Ngā wehewehe/whakawehe mana RFhe wāhanga RF / ngaruiti kore e whakamahia ana mō te wehewehe (te wehewehe rānei) i ngā tohu ngaruiti. Kei roto i ngā whakawehe mana o Sichuan Keenlion Microwave Technology CO.,Ltd ngā tauira ara-2, ara-3, ara-4, ara-6, ara-8 me te ara-tae atu ki te 48 mō ngā pūnaha 50 Ohm me te 75 Ohm, me te tuku-DC me te aukati-DC, i roto i ngā whakatakotoranga coaxial, mount mata, me te mate MMIC. Kei te wātea ā mātou whakawehe coaxial me ngā hononga SMA, Momo-N, Momo-F, BNC, 2.92mm me te 2.4mm. Kōwhiria mai i te neke atu i te 100 tauira kei roto i te taonga me ngā awhe auau tae atu ki te 50
GHz, te whakahaere mana tae atu ki te 200W, te ngaronga whakaurunga iti, te wehenga teitei, ā, he tino pai te kore taurite o te kaha me te kore taurite o te āputa.
Ka taea hoki e mātou te whakarite i te Tātari Haere Rōpū kia rite ki ō hiahia. Ka taea e koe te tomo ki te whārangi whakaritenga hei whakarato i ngā whakatakotoranga e hiahiatia ana e koe.
Wā tuku: Hepetema-15-2022
