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Ithiyori ye-Antenna – I-Half-Wave Folded Dipole
I-dipole egoqiwe iyi-antenna equkethe ama-conductor amabili ahambisanayo axhunywe kuzo zombili izinhlangothi, akha isakhiwo esimise okweluphu evaliwe, lapho indawo yokuphakelayo iphakathi nendawo. Ubude obuphelele be-antenna buyisigamu sobude be-wavelength, yingakho ibizwa nangokuthi i-half-wave folded ...Funda kabanzi -
Ithiyori ye-Antenna – I-Half-Wave Dipole
I-antenna ye-dipole iyanqunywa futhi igotshwe ukuze kutholakale imisebe esebenza kahle. Ubude obuphelele bentambo esetshenziswa njenge-dipole bulingana nengxenye yobude be-wavelength (okungukuthi, l=λ/2）). Lolu hlobo lwe-antenna lubizwa ngokuthi i-antenna ye-dipole ye-half-wave. Ngenxa yezinzuzo zalo, luyi-ante esetshenziswa kakhulu...Funda kabanzi -
Ithiyori ye-Antenna – Izintambo
Ama-antenna ensimbi angenye yezinhlobo eziyisisekelo zama-antenna. Ayaziwa futhi asetshenziswa kabanzi. Ukuze siqonde kangcono ama-antenna ensimbi, ake siqale sibheke umugqa wokudlulisela. Umugqa Wokudlulisela Umugqa wokudlulisela, noma ucingo, uthwala amandla kagesi...Funda kabanzi -
Ithiyori ye-Antenna – I-Poynting Vector
Ama-antenna adlulisa noma athola ulwazi ngokukhipha amandla kagesi. Ngakho-ke, amandla namandla kuyimingcele ebalulekile ehlotshaniswa nala magagasi kagesi, futhi kubalulekile ukuxoxa ngawo. Igagasi kagesi liqukethe insimu kagesi kanye...Funda kabanzi -
Ithiyori ye-Antenna – Ububanzi be-Beamwidth
Ephethini yemisebe ye-antenna, i-lobe eyinhloko imelela umsebe oyinhloko we-antenna, lapho kukhishwa khona amandla aphezulu nagxile kakhulu. Ububanzi be-beamwidth buyi-angle ububanzi be-aperture lapho kukhishwa khona iningi lamandla. Okubili okuyinhloko ...Funda kabanzi -
Ithiyori ye-Antenna – Imisebe kanye nokuHlanganisa
Lesi sahluko sixoxa ngemingcele yemisebe yemisebe ye-antenna, esisiza siqonde imininingwane yemisebe. Indawo Yemisebe Ngokusho kwencazelo ejwayelekile: “Uma amandla emisebe i-P(θ,ϕ) ehlala enanini layo eliphezulu ngaphezulu...Funda kabanzi -
Ithiyori ye-Antenna — Imisebe ye-Isotropic
Esahlukweni esidlule, sixoxe ngamaphethini emisebe. Ukuze sihlaziye kangcono imisebe ye-antenna, kudingeka iphuzu lokubhekisela. Imisebe ye-antenna ye-isotropic ifeza le ndima. Incazelo Imisebe ye-Isotropic ibhekisela emisebeni evela emthonjeni wephuzu...Funda kabanzi -
Ithiyori ye-Antenna – Amaphethini Okukhanya
Imisebe yigama elichaza amandla amaza kagesi adluliselwa noma atholwe yi-antenna. Kunoma yimuphi umfanekiso we-antenna, umdwebo obonisa izici zemisebe ye-antenna waziwa ngokuthi iphethini yayo yemisebe. Ngokubuka i-radiation p...Funda kabanzi -
Ithiyori ye-Antenna - Insimu Eseduze Nensimu Ekude
Ngemva kwengxoxo yemingcele ye-antenna eyisisekelo esahlukweni esandulele, esinye isihloko esibalulekile okufanele sicatshangelwe yizindawo eziseduze nensimu kanye nezindawo ezikude ze-antenna. Ukuqina kwemisebe okulinganiswe eduze ne-antenna kuhlukile kulokho okulinganiswe kude. ...Funda kabanzi -
Ithiyori ye-Antenna - Amapharamitha Ayisisekelo
Lesi sahluko sethula imingcele eyisisekelo yokuxhumana okungenantambo, okuhloswe ngayo ukunikeza ukuqonda okungcono ngendima yama-antenna ezinhlelweni zokuxhumana. Ukuxhumana okungenantambo kwenziwa ngendlela yamagagasi kagesi, okwenza kube kubalulekile ukuqeda...Funda kabanzi -
Umhlahlandlela Ophelele Wezinti Ze-Antenna: Indlela Ezisebenza Ngayo Izinti Ze-Antenna
Ama-antenna ayithuluzi lokuxhumana elivame kakhulu ezimpilweni zethu. Kodwa-ke, abantu abaningi abawaqondi ngempela, mhlawumbe bazi nje ukuthi asetshenziselwa ukudlulisa nokwamukela izimpawu. Ngeshwa, selokhu usosayensi waseRussia uPopov asungula ngempumelelo i-antenna ngo-18...Funda kabanzi -
I-AESA vs PESA: Indlela Imiklamo Yesimanje Yama-Antenna Eguqula Ngayo Izinhlelo Ze-Radar
Ukuvela ku-Passive Electronically Scanned Array (PESA) kuya ku-Active Electronically Scanned Array (AESA) kumelela intuthuko ebaluleke kakhulu kubuchwepheshe besimanje be-radar. Ngenkathi zombili izinhlelo zisebenzisa isiteringi se-elekthronikhi, izakhiwo zazo eziyisisekelo ziyahlukahluka...Funda kabanzi
