Ngā Pūrongo - Te Pūihi Porowhita Papatahi: Te Wā e Tino Hiranga ai te Whānuitanga o te Ipurangi

Pātai atu ki tētahi kaihanga pūihi mō te mahi whānui, ā, tera pea ka puta ake ngā pūihi porowhita papatahi i te tīmatanga o te kōrero. Ko ēnei hanganga papatahi, porowhita—me ngā ringa e piko ana ki waho pērā i te tapumati, i te tupuni rānei—kua whakaoti rapanga whānui mai i te tekau tau atu i 1950. Ā, kei te mahi tonu rātou i tēnei rā.

He aha te Pūihi Porowhita Papatahi?

I tōna māmā noa iho, hepūihi porowhita papatahihe mea hanga mai i ngā ringa whakarewa e rua, neke atu rānei, kua whakairohia ki runga i tētahi papa angiangi o te dielectric, e porowhita ana ki waho mai i tētahi pūwāhi whāngai pokapū. E rua ngā hoahoa matua: ko te porowhita Archimedean, ko te horapa o ngā ringa i te tere pumau, me te porowhita logarithmic, ko te tipu tere o te pihi. Ka tutuki i a rāua te whāinga kotahi—he whānui rawa te whānui o te whānui—engari mā te āhuahanga paku rerekē.

Kei roto i te ariā "rohe hohe" te kī. I tētahi auau kua whakaritea, ko tētahi rohe porowhita motuhake anake—te wāhi e ōrite ana te porowhita ki te roanga ngaru—ka horapa hohe. Hurihia te auau, ā, ka neke noa te rohe hohe ki roto, ki waho rānei i ngā ringa. Kāore te pūihi e aro ki te auau e tukuna ana e koe ki a ia; ka mahi tonu.

He aha i whiriwhiri ai i tētahi Porowhita Papatahi?

1. Mahi Whānui-Uranui

Koinei te āhuatanga matua. Ka taea e tētahi porowhita kua hoahoatia pai te mahi i runga i ngā ōwehenga auau o te 10:1, tae atu rānei ki te 20:1—mai i ētahi rau MHz ki ngā tekau GHz—me te whāngai kotahi. Mō ngā pūnaha e hiahia ana ki te kapi i ngā roopu maha me te kore e huri i ngā pūihi, he mea tino rerekē tēnā.

2. PorowhitaTe Whakaporatanga e te Taiao

Ka tukuna e ngā pūihi porowhita te porowhita porowhita. Kāore he porowhita o waho, kāore he uauatanga anō. Nā tēnei ka pai mō ngā whakawhitiwhitinga amiorangi, GPS, me tetahi tono e pāngia ana e te kore ōrite o te porowhita, te hurihanga Faraday rānei.

3. He iti te āhua, he māmā hoki

Nā te mea he mea tā ki runga i ngā papa angiangi, he papatahi, he māmā hoki ngā porowhita papatahi. Ka taea te whakairi ki runga i ngā mata, te hangai ki ngā hanganga piko, te whakauru tika rānei ki ngā pūnaha e raru ana te rahi.

4. Tauira Pūmau puta noa i te Whānuitanga o te Ipurangi

He rerekē tēnei i ētahi pūihi whānui e whakarerekē ana i te āhua o te hihi i runga i te auau, he pumau tonu te tauira o ngā porowhita—he hihi e rua ngā ahunga e anga whānui ana ki te papa. He mea nui tēnei matapae ina hangaia ana he uhi.

Te Wāhi e Kitea ai e Koe Rātou

•Te Pakanga Hiko me te Tirotiro：Ko ngā pūnaha e hiahia ana ki te kite, ki te aukati, ki te aukati rānei i ngā tohu puta noa i te whānuitanga o te awhe, e whakawhirinaki ana ki ngā porowhita. Ki te kore koe e mōhio ki hea te takenga mai o te riri—te auau rānei e whakamahia ana e ia—me whai pūihi koe kāore e māharahara.

•WhānuiAroturuki me te Whakamātautau：I roto i ngā taiwhanga EMC me ngā teihana aroturuki ira, ka whakamahia ngā porowhita hei tohutoro pono mō te ine i ngā pūihi me ngā pūnaha puta noa i ngā roopu maha me te tatūnga kotahi.

•Te Whakawhitiwhiti Kōrero Amiorangi me te GPS：Nā te porowhita porowhita me te whānui o te whānui o te whānui, he pai te kōwhiringa o ngā porowhita mō ngā taunga whenua me ngā pūihi mokowā, inā koa me hipoki he maha ngā roopu auau.

•Radar Whakauru Whenua：Ko te tikanga o ngā pāoro poto he whānui te whānui o te whānuitanga. Ka taea e ngā porowhita te whakahaere i ngā tohu rite ki te pāoro e whakamahia ana i roto i te whakaahua o raro i te mata, me te kore e tangi, e whakapōturi rānei.

He Whakaaro mai i te Taiwhanga

I kī tētahi hoa mahi, "Mā te hurihanga, kei te hokohoko koe i te hua mō te whānui o te hononga - ā, i te nuinga o te wā, he hokohoko tika tēnā." He tika tāna. I roto i tētahi ao e kore e taea te matapae i ngā tohu, ā, kei te neke haere tonu ngā tohatoha auau, he mea utu nui te whai i tētahi pūihi kāore e aro ki te auau.

Ngā Pūihi Porowhita Papatahi RFMiso

Kei a mātou ngā pūihi porowhita papatahi e kapi ana i ngā awhe auau mai i te UHF ki te mirimita-ngaru, me ngā kōwhiringa mō te tautoko poka me ngā papa ritenga. Ahakoa kei te hanga koe i tētahi pūnaha EW, kei te whakatū rānei i tētahi teihana aroturuki whānui, he hoahoa tā mātou e tika ana.