Ngā Whakatakotoranga
| RM-VA0212-6 | ||
| Taonga | Whakatakotoranga | Ngā Wāhanga |
| Awhe Auautanga | 0.2-1.2 | GHz |
| Whiwhi | 6 Momo. | dBi |
| VSWR | 2 Momo. |
|
| Te Whakapōratanga o te Kōhatu | 60 Tātai. | dB |
| Te whakapolarisasi | Raina Pkua whakawāteatia |
|
| Hononga | N-Wahine |
|
| Whānuitanga hihi 3dB | E-waka rererangi: 43.5-101.5 Papa-H: 75.6-161.7 | ° |
| Rauemi | Al |
|
| Rahi(R*W*H) | 427.3*47.3*424.6(±5) | mm |
| Taumaha | 5.2 | kg |
| Te Whakahaere Mana, Te Tihi | 300 | w |
| Te Whakahaere Hiko, CW | 100 | w |
Pūihi Vivaldi: Te Mātāpono Mahi, Ngā Āhuatanga me Ngā Whakamahinga
Ko te pūihi Vivaldi, e mōhiotia ana ko te pūihi mokowā whakarara, he pūihi ahunga whānui e whakamahia whānuitia ana i roto i ngā pūnaha RF, ngaruiti, radar, pakanga hiko, ine, me te whakamātautau ahokore. Mā tōna kōhao whakarara motuhake ka taea e te pūngao hikohiko te neke haere mārire mai i te hanganga tuku ārahi ki te wāhi kore utu, hei āwhina i te pūihi ki te whakatutuki i te mahi whānui me te ira ahunga.
Ki te whakatauritea ki te maha o ngā pūihi autō e arotauhia ana huri noa i tētahi awhe auau whāiti, ka whakamahia e ngā pūihi Vivaldi he hanganga ngaru-haere. Nā tēnei ka tino ātaahua rātou mō ngā pūnaha e hiahia ana ki te whānuitanga o te kapinga auau me te whirihoranga mīhini papatahi, whakarewa rānei, ngāwari noa iho.
Me pēhea te mahi a te pūihi Vivaldi?
Ko te pūihi Vivaldi taketake he mea hanga ki ngā taha e rua e arahi ana, e hanga ana i tētahi mokowā whakarara. Ka whānui haere te mokowā mai i tētahi rohe whāngai whaiti ki tētahi kōhao whānui ake.
Ina uru te pūngao RF ki te pūihi, ka haere te ngaru hikohiko i te taha o te mokowā whakarara. I te piki haere o te whānui o te mokowā, ka hono haere te ngaru ārahi ki te wāhi wātea, ā, ka horapa atu ki te pito tuwhera o te pūihi.
Ko tēnei whakawhiti āta haere tētahi o ngā tino take e taea ai e ngā pūihi Vivaldi te whakarato i ngā āhuatanga whānui.
Ka tino pāngia te auau iti e te rahi ā-tinana o te pūaha me te whakawhāiti, ko te mahi auau teitei ake ka whakawhirinaki ki ngā āhuatanga pēnei i te whakawhiti whāngai, te āhua whakawhāiti, ngā ine o te ara iahiko, me te tika o te hanga.
Ngā Āhuatanga Irahiko
Ko te pūihi Vivaldi he pūihi mutunga-ahi, ko te tikanga ka anga tōna irahiko matua ki te pito tuwhera o te kōhao whaiti.
Ko ōna āhuatanga irahiko e whakawhirinaki ana ki ētahi tawhā hoahoa, tae atu ki:
Whānui o te whakatuwheratanga
Te roa me te kōtaha o te taper
Hanganga whāngai
Auautanga whakahaere
Te āhua o te whenua me te arataki
Ngā āhuatanga ā-mīhini
I te rerekētanga o te auau, ka rerekē anō hoki te rohe whatumanawa whai hua i te hanganga whakarara. Mā tēnei ka taea e te pūihi te mahi puta noa i te awhe auau whānui, me te kore e whakawhirinaki ki tētahi orooro whaiti kotahi.
He mea hanga noa ngā pūihi Vivaldi mō te whakapūtanga raina, ahakoa ko te mahi whakapūtanga e whakawhirinaki ana ki te āhuahanga me te whakaritenga whāngai.
Ngā Momo Matua o ngā Antenna Vivaldi
He maha ngā whirihoranga pūihi Vivaldi e whakamahia whānuitia ana i roto i te hangarau RF.
Pūihi Vivaldi Tikanga
E whakamahi ana i tētahi mokowā whaiti i waenganui i ngā rohe ara iahiko e rua, ā, ko tētahi o ngā whakatinanatanga tino noa.
Pūihi Vivaldi Antipodal
Ka whakamahi i ngā huānga arataki hiko i ngā taha rerekē o te papa whāiti hiko. Ka taea e tēnei whirihoranga te whakarato i tētahi whakawhiti watea mai i ētahi whāngai raina tuku ki te kōhao hihi.
Pūihi Vivaldi Antipodal Taurite
Ka whakamahi i tētahi hanganga paparanga maha-taurite ake hei whakapai ake i te taurite o te mara me ngā āhuatanga porowhita i roto i ētahi tono whānui.
Ka taea te whiriwhiri i ngā whirihoranga rerekē i runga i te whānui o te hononga, te porowhita, te tikanga whāngai, te tukanga hanga, me ngā whakaritenga whakauru-pūnaha.
Ngā Tawhā Matua i te Wā e Kōwhiria ana he Pūihi Vivaldi
I te wā e whiriwhiri ana i tētahi pūihi Vivaldi, ko te awhe auau te tīmatanga anake.
E whakaatu ana te whakanui i te whai huatanga o te pūihi ki te whakaemi i te irahiko ki mua.
E whakaata ana te VSWR i te taurite aukati i waenga i te pūihi me te pūnaha RF. Ko te tikanga o te VSWR iti ko te iti ake o te mana whakaata.
Me ōrite te whakapolarization ki te pūnaha RF ūnga hei whakaiti i te kore ōritenga o te whakapolarization.
3 dB Ko te Whānuitanga Hiko e whakaahua ana i te whānui koki o te hihi matua, ā, he mea nui hoki i roto i ngā tono radar, aroturuki, me te ine ahunga.
He mea nui anō hoki te Mahi Whakawhiti-Polarization ina he mea nui te parakore o te polarization.
Me whai whakaaro anō hoki ki ngā āhuatanga hangarau pēnei i te momo hononga, ngā rahi o te pūihi, te taumaha, te hanganga whakairinga, me te whakahaere hiko i te wā e whakauruhia ana te pūnaha.
Hei tauira, ko te RM-VA0212-6 Linear Polarized Vivaldi Antenna a RF MISO e mahi ana mai i te 0.2 ki te 1.2 GHz, e whakarato ana i te 6 dBi whakanui noa, e whakamahi ana i te polarization raina me te atanga N-Female, ā, kua tohua mō ngā tono whakamātautau radar, whakawhitiwhitinga amiorangi, pakanga hiko, me ngā tono whakamātautau ahokore teitei.
Ngā Painga o ngā Antenna Vivaldi
He maha ngā painga mahi a ngā pūihi Vivaldi:
Whānuitanga mahi whānui
Te irahiko mutunga-ahi aronga
He hanganga hihi māmā noa iho
He pai te hototahi ki ngā pūnaha RF whānui
Hoahoa tauine puta noa i ngā awhe auau rerekē
He pai mō ngā whirihoranga huānga-kotahi me te rarangi
Nā te āhua whānui o te antenna, he tino whai hua ēnei ina hiahia te pūnaha ki te hipoki i ngā auau maha me te kore e whakawhiti pinepine i ngā pūihi.
Ngā tono
Ko ngā pūihi Vivaldi e whakamahia whānuitia ana i roto i:
Ngā pūnaha radar
Pakanga hiko
Te ine i te RF whānui
Whakamātautau ahokore
Te kimi ahunga
Te aroturukitanga tohu
Whakaahua ngaruiti
Ngā pūnaha whakawhitiwhiti kōrero
Ngā rarangi pūihi
Ngā tono rangahau me te taiwhanga
I roto i ngā pūnaha whakarārangi, ka taea hoki te whakarite i ngā huānga Vivaldi maha hei whiwhi i te whakanui ake, i ngā hihi whaiti ake, i te āheinga whakahaere hihi hiko rānei.
Whakamutunga
Ka whakakotahi te pūihi Vivaldi i te hanganga ngaru haere-mokowā-whakaiti, te mahi whānui, me te irahiko aronga, ka waiho hei hoahoa pūihi maha-whakamahinga mō ngā pūnaha RF me ngā pūnaha ngaruiti hou.
Ko tōna mahi tuturu e whakawhirinaki ana ki te āhua o te taper, te rahi o te pūaha, te hoahoa whāngai, te auau whakahaere, me te whakatinanatanga miihini. Nō reira, me arotake e ngā kaihangarau ehara i te mea ko te whānui me te whakanui anake, engari ko te VSWR, te polarization, te whānui hihi, te mahi cross-polarization, te atanga RF, me ngā whakaritenga tāutanga ina whiriwhiria he tauira e tika ana.
Mō ngā tono radar, pakanga hiko, ine whānui, whakawhitiwhiti kōrero, me te whakamātautau ahokore, ka whakaratohia e ngā pūihi Vivaldi he otinga ngāwari ina he mea nui te whānuitanga o te kapinga auau me te mahi RF ahunga.
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