ILoga iAntenna yeXesha(i-LPA) yaphakanyiswa kwi-1957 kwaye yolunye uhlobo lwe-antenna engatshintshiyo.
Isekelwe kwingqikelelo efanayo ilandelayo: xa i-eriyali iguqulwa ngokomlinganiselo othile τ kwaye isalingana nesakhiwo sayo sokuqala, i-eriyali inentsebenzo efanayo xa i-factor ingu-f kunye ne-τf. Zininzi iindlela zee-eriyali ze-log ze-log, phakathi kwazo i-Log Dipole Antenna (LDPA) ecetywayo ngo-1960 ineempawu ezibanzi kakhulu ze-bandwidth kunye nesakhiwo esilula, ngoko isetyenziswe ngokubanzi kwi-shortwave, i-ultra-shortwave kunye neebhendi ze-microwave.
I-antenna ye-log ye periodic iphinda ipateni yemitha kunye neempawu ze-impedance ngamaxesha athile. Nangona kunjalo, kwi-eriyali enesakhiwo esinjalo, ukuba i-τ ayikho ngaphantsi kwe-1, utshintsho lweempawu zalo ngaphakathi komjikelo omnye luncinci kakhulu, ngoko luzimeleyo ngokuphindaphindiweyo.
Kukho iintlobo ezininzi zee-eriyali ze-log periodic, ezibandakanya ii-eriyali ze-log periodic dipole kunye ne-monopole antennas, i-log periodic resonant emilise okwe-V, i-log periodic spiral antenna, njl.
Njenge-antenna ye-ultra-wideband, ukugubungela i-bandwidth kubanzi kakhulu, ukuya kuthi ga kwi-10: 1, kwaye isoloko isetyenziselwa ukukhulisa umqondiso, ukuhanjiswa kwangaphakathi kunye nokugubungela umqondiso we-elevator. Ukongeza, i-antenna ye-logarithmic periodic isenokusetyenziswa njengomthombo wesondlo kwii-eriyali ezibonisa i-microwave. Ekubeni indawo esebenzayo ihamba kunye ne-frequency yokusebenza, ukutenxa phakathi kwendawo esebenzayo kunye nokugxilwa kuyo yonke ibhendi ye-frequency yokusebenza kufuneka ibe ngaphakathi kwendawo yokunyamezela evumelekileyo ngexesha lofakelo.
RF MISO's Model RM-DLPA022-7 yi-eriyali yelog yexesha eliphindwe kabini esebenza ukusuka0.2 ukuba 2 GHz, I-eriyali inikezela7dBiinzuzo eqhelekileyo. I-eriyali i-VSWR yi 2Chwetheza. I-eriyali RF izibuko zi N-Isiqhagamshelo sebhinqa. I-eriyali ingasetyenziswa ngokubanzi ekubhaqweni kwe-EMI, ukuqhelaniswa, ukuqaphela, ukufumana i-eriyali kunye nokulinganisa ipateni kunye nezinye iindawo zesicelo.
RM-DLPA022-7
RF MISO'sUmzekeloRM-LPA0033-6 is log ngamaxesha i-eriyali esebenza ukusuka0.03 to 3 GHz, I-eriyali inikezela 6dBi inzuzo eqhelekileyo. I-eriyali i-VSWR yi ngaphantsi ko2:1. I-eriyali RF amazibukoN-Ibhinqaisinxibelelanisi. I-eriyali ingasetyenziswa ngokubanzi ekubhaqweni kwe-EMI, ukuqhelaniswa, ukuqaphela, ukufumana i-eriyali kunye nokulinganisa ipateni kunye nezinye iindawo zesicelo.
RM-LPA0033-6
RF MISO'sUmzekeloRM-LPA054-7 is log ngamaxesha i-eriyali esebenza ukusuka0.5 to 4 GHz, I-eriyali inikezela 7dBi inzuzo eqhelekileyo. I-eriyali i-VSWR yi 1.5 Isimbo. I-eriyali RF amazibukoN-Ibhinqaisinxibelelanisi. I-eriyali ingasetyenziswa ngokubanzi ekubhaqweni kwe-EMI, ukuqhelaniswa, ukuqaphela, ukufumana i-eriyali kunye nokulinganisa ipateni kunye nezinye iindawo zesicelo.
RM-LPA054-7
Ukuze ufunde ngakumbi ngee-eriyali, nceda undwendwele:
Ixesha lokuposa: Dec-27-2024
