IFaka i-Periodic Antenna(i-LPA) yahlongozwa ngo-1957 futhi ingolunye uhlobo lwe-antenna engaguquguquki.
Isekelwe embonweni ofanayo olandelayo: lapho uthi lwe-antenna luguqulwa ngokwesici esithile sokulinganisa u-τ futhi lusalingana nesakhiwo salo sokuqala, uthi lunokusebenza okufanayo lapho isici sithi f kanye no-τf. Ziningi izinhlobo zama-antenna we-log periodic, phakathi kwawo i-Log Dipole Antenna (LDPA) eyahlongozwa ngo-1960 inezici zomkhawulokudonsa obanzi kakhulu kanye nesakhiwo esilula, ngakho-ke isetshenziswe kabanzi kumabhendi ama-shortwave, ama-ultra-shortwave nama-microwave.
I-antenna ye-log periodic imane iphinda iphethini yemisebe nezici ze-impedance ngezikhathi ezithile. Kodwa-ke, ku-antenna enesakhiwo esinjalo, uma τ ingekho ngaphansi kakhulu kuno-1, ukuguqulwa kwezici zayo phakathi komjikelezo owodwa kuncane kakhulu, ngakho-ke izimele ngokuyisisekelo.
Kunezinhlobo eziningi zama-antenna we-log periodic, okuhlanganisa izimpondo ze-log periodic dipole kanye nezimpondo ze-monopole, izimpondo ze-log periodic resonant ezimise okwe-V, izimpondo ze-log periodic spiral, njll., phakathi kwazo ezivame kakhulu i-log periodic dipole antenna.
Njenge-antenna ye-ultra-wideband, ukumbozwa komkhawulokudonsa kubanzi kakhulu, kufika ku-10:1, futhi kuvame ukusetshenziselwa ukukhulisa isignali, ukusatshalaliswa kwangaphakathi kanye nokufakwa kwesignali yekheshi. Ngaphezu kwalokho, i-logarithmic periodic antenna ingasetshenziswa futhi njengomthombo wokuphakelayo wezimpondo ezibonisa i-microwave. Njengoba indawo ephumelelayo ihamba nefrikhwensi yokusebenza, ukuchezuka phakathi kwendawo ephumelelayo nokugxila kuyo yonke ibhande lefrikhwensi yokusebenza kufanele kube ngaphakathi kwebanga lokubekezelela elivumelekile phakathi nokufakwa.
RF MISOImodeli ye-RM-DLPA022-7 iwuthi lwelogi oluhlanganisiwe olukabili olusebenza kusuka0.2 kuya ku-2 GHz, I-antenna inikeza7dBiinzuzo ejwayelekile. I-antenna i-VSWR 2Thayipha. Izimbobo ze-antenna RF ziyisixhumi se-N-Female. I-antenna ingasetshenziswa kakhulu ekutholweni kwe-EMI, ukuma, ukuqaphela, ukuzuza kwe-antenna kanye nesilinganiso sephethini nezinye izinkambu zohlelo lokusebenza.
I-RM-DLPA022-7
RF MISO'sImodeliRM-I-LPA0033-6 is log ngezikhathi ezithile i-antenna esebenza kusuka0.03 to 3 GHz, I-antenna inikeza 6dBi inzuzo ejwayelekile. I-antenna i-VSWR ngaphansi kwe2:1. I-antenna RF amachweba kukhonaN-Owesifazaneisixhumi. I-antenna ingasetshenziswa kakhulu ekutholweni kwe-EMI, ukuma, ukuqaphela, ukuzuza kwe-antenna kanye nesilinganiso sephethini nezinye izinkambu zohlelo lokusebenza.
I-RM-LPA0033-6
RF MISO'sImodeliRM-I-LPA054-7 is log ngezikhathi ezithile i-antenna esebenza kusuka0.5 to 4 GHz, I-antenna inikeza 7dBi inzuzo ejwayelekile. I-antenna i-VSWR 1.5 Uhlobo. I-antenna RF amachweba kukhonaN-Owesifazaneisixhumi. I-antenna ingasetshenziswa kakhulu ekutholweni kwe-EMI, ukuma, ukuqaphela, ukuzuza kwe-antenna kanye nesilinganiso sephethini nezinye izinkambu zohlelo lokusebenza.
I-RM-LPA054-7
Ukuze ufunde kabanzi ngama-antenna, sicela uvakashele:
Isikhathi sokuthumela: Dec-27-2024
