Log Spiral Antenna 4dBi Type. Pezani, 0.2-1 GHz Frequency Range RM-LSA021-4

Mlongoti wa log-spiral ndi mlongoti wachikale womwe malire ake achitsulo amatanthauzidwa ndi ma curve a logarithmic. Ngakhale zowoneka ngati zozungulira za Archimedean, kapangidwe kake kapadera ka masamu kamapangitsa kukhala "mlongoti wodziyimira pawokha" wowona.

Ntchito yake imadalira kamangidwe kake kothandizira (mipata yachitsulo ndi mpweya imakhala yofanana) ndi chikhalidwe chake chokhazikika. Chigawo chogwira ntchito cha mlongoti pafupipafupi ndi dera lokhala ngati mphete lomwe limakhala lozungulira pafupifupi utali wozungulira umodzi. Pamene ma frequency ogwiritsira ntchito akusintha, dera logwira ntchitoli limayenda bwino m'mikono yozungulira, koma mawonekedwe ake ndi mawonekedwe amagetsi amakhalabe osasintha, zomwe zimapangitsa kuti bandwidth yotakata kwambiri.

Ubwino waukulu wa mlongoti uwu ndikuchita kwake kopitilira muyeso (ma bandwidth a 10: 1 kapena kupitilira apo ndiofala) komanso kuthekera kwake kotulutsa mafunde ozungulira polarized. Zopinga zake zazikulu ndizopeza phindu lochepa komanso kufunikira kophatikiza chakudya chokwanira. Imagwiritsidwa ntchito kwambiri pamapulogalamu omwe amafunikira kuti pakhale ma wideband opaleshoni, monga Electronic Countermeasures (ECM), kulumikizana kwa Broadband, ndi makina owunikira ma sipekitiramu.