High Gain L-Band Directional Spiral Antenna / Helical Antenna

Mlongoti wa helical/Spiral antenna ndi mtundu wapadera wa mlongoti womwe umatha kutumiza ndi kulandira ma polarized electromagnetic signals omwe amazungulira mumlengalenga. Mlongoti wamtunduwu nthawi zambiri umagwiritsidwa ntchito m'malo olumikizirana ma satelayiti ndipo umakhala ndi zozungulira zachitsulo zokhala ndi ma conductive abwino. Nthawi zambiri amadyetsedwa kudzera pa chingwe cha coaxial, pomwe waya wapakati pa chingwe cha coaxial amalumikizidwa kumapeto kwa waya wozungulira ndipo woyendetsa wakunja amalumikizidwa ndi mauna achitsulo kapena mbale. Mawonekedwe a radiation a spiral antenna amagwirizana kwambiri ndi circumference ya spiral yake: pamene circumference ndi yaying'ono kwambiri kuposa kutalika kwa mawonekedwe, njira yayikulu ya radiation ndi perpendicular to spiral axis; pamene circumference ili pafupi ndi wavelength, ma radiation amphamvu kwambiri amawoneka molunjika kumtunda wa spiral.

Ma helical antennas / Spiral antennas ali ndi izi zotsatirazi:

1. Ma radiation amayang'ana kwambiri kumtunda kwa mlongoti.
2. Kutha kupanga mafunde ozungulira polarized, kukana bwino njira zambiri komanso kusokoneza ma sign.
3. Kugawidwa kwapano pa mlongoti kumasonyeza mawonekedwe oyendayenda, omwe amathandiza kuti akwaniritse zotsatira zofanana.
4. Impedance yolowetsayo ili pafupi ndi kukana koyera, komwe kumapangitsa kuti ma network ofananirako asamveke bwino ndikuwongolera magwiridwe antchito.
5. Ili ndi mawonekedwe a Broadband ndipo imatha kusunga magwiridwe antchito a radiation mkati mwamitundu yambiri.

Chifukwa cha mawonekedwe awo osalala, magwiridwe antchito abwino kwambiri ozungulira, komanso kuthekera kowotcha moto ndi mbali, tinyanga tating'onoting'ono takhala tikugwiritsidwa ntchito kwambiri m'magawo ambiri monga zakuthambo, meteorology, malo, ndi kulumikizana. Ndi chitukuko chosalekeza chaukadaulo wolumikizirana opanda zingwe, magwiridwe antchito apamwamba amagetsi a helical antennas akuyembekezeka kuwapatsa malo ogwiritsira ntchito komanso chitukuko mtsogolo.