Eriya mai lokaci-lokaci 9dBi Nau'in Gain, 0.3-2GHz Mita RM-LPA032-9

Eriya mai tsawon lokaci ta log-periodic eriya ce ta musamman wacce aikin wutar lantarki, kamar su impedance da tsarin radiation, ke maimaitawa lokaci-lokaci tare da logarithm na mitar. Tsarinta na gargajiya ya ƙunshi jerin abubuwan dipole na ƙarfe masu tsayi daban-daban, waɗanda aka haɗa su da layin ciyarwa, suna samar da tsarin geometric wanda yake kama da ƙashin kifi.

Ka'idar aiki ta dogara ne akan ra'ayin "yankin aiki". A wani takamaiman mitar aiki, ƙungiyar abubuwa ne kawai waɗanda tsayinsu kusa da rabin-wavelength ne ke da ƙarfin aiki kuma suna da alhakin babban hasken radiation. Yayin da mitar ke canzawa, wannan yanki mai aiki yana tafiya tare da tsarin eriya, yana ba da damar yin aiki mai faɗi.

Babban fa'idar wannan eriya ita ce faɗin bandwidth ɗinta, wanda galibi yana kaiwa 10:1 ko fiye, tare da ingantaccen aiki a cikin band ɗin. Babban rashin kyawunsa shine tsari mai rikitarwa da kuma matsakaicin riba. Ana amfani da shi sosai a cikin karɓar talabijin, sa ido kan bakan band, gwajin Electromagnetic Compatibility (EMC), da tsarin sadarwa da ke buƙatar aiki da band mai faɗi.