Ko te Varactor Diode he Diode motuhake i hangaia e rite ana ki te parau tumu e kaha ana te kaha o te "PN Junction" i roto i te Diode noa te whakarereke i te huringa o te ngaohiko i whakamahia.

Ko te Varactor Diode e whakamahia ana i roto i te waahanga hurihuri teitei o te waea pūkoro, i te raarangi whenua ranei i te waea kore-iti ki te whakatau i te tohu iti-iti ki te tohu teitei me te whakaputa i te tohu teitei I roto i te kawanatanga mahi, ko te huringa o te miihini a te Varactor Diodiu te tikanga ka taea te whakamahi i te hiko kino e pai ai te huringa o te varactor diodio me te huringa whakarereke.

Ko te Varactor Diode, te nuinga o te wa e whakaatuhia ana he riihi, he ngoikore ranei te mahi:

(1) Ka puta mai te riihi, kaore e mahi te huringa hurihuri teitei, ka memeha atu ranei te mahinga mahi whakarereke.

(2) Ina kua kino te mahi a te varactor, ka mau tonu te mahinga o te huringa tere-kaha, me te tohu nui-aukati ka tukuna ki tetahi atu paati me te whakawhiwhinga i tetahi atu roopu.

I te wa e puta ana tetahi o nga ahuatanga o runga ake nei, ko te varactor diode o te tauira ano me whakakapi.