Diode ya varactor ndi diode yapadera yopangidwa mwapadera malinga ndi mfundo yakuti makulidwe a "PN junction" mkati mwa diode wamba amatha kusintha ndikusintha kwamagetsi obwerera.

Diode ya varactor imagwiritsidwa ntchito makamaka pamayendedwe apamwamba kwambiri a foni yam'manja kapena landline mufoni yopanda zingwe kuti azindikire kusinthika kwa siginecha yotsika kwambiri kupita ku siginecha yapamwamba kwambiri ndikuyitulutsa. Pogwira ntchito, voteji ya varactor diode modulation nthawi zambiri imawonjezedwa ku electrode yoyipa Pangani mphamvu yamkati ya varactor diode kusintha ndi voteji yosinthira.

Varactor diode imalephera, makamaka kuwonetsedwa ngati kutayikira kapena kusagwira bwino ntchito:

(1) Kutayikira kukachitika, gawo losinthira ma frequency apamwamba silingagwire ntchito kapena kusinthika kumasokonekera.

(2) Pamene ntchito ya varactor ikuwonongeka, kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe kake

Chimodzi mwazomwe zili pamwambapa chikachitika, diode ya varactor yachitsanzo chomwecho iyenera kusinthidwa.