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Ithiyori ye-Antenna - I-Half-Wave Folded Dipole
I-dipole egoqiweyo yi-antenna equlathe ii-conductors ezimbini ezidibeneyo ezidityaniswe kuzo zombini iziphelo, zenza isakhiwo esimile okweluphu evaliweyo, apho indawo yokuphakelwa ikwimbindi. Ubude obupheleleyo be-antenna buyisiqingatha sobude bomda, yiyo loo nto ikwabizwa ngokuba yi-half-wave folded ...Funda ngokugqithisileyo -
Ithiyori ye-Antenna – i-Half-Wave Dipole
I-antenna ye-dipole iyanqunyulwa ize igotywe ukuze kufumaneke imitha esebenzayo. Ubude obupheleleyo bentambo esetyenziswa njenge-dipole bulingana nesiqingatha sobude bomda (oko kukuthi, l=λ/2）). Olu hlobo lwe-antenna lubizwa ngokuba yi-half-wave dipole antenna. Ngenxa yeenzuzo zalo, yeyona isetyenziswa kakhulu...Funda ngokugqithisileyo -
Ithiyori ye-Antenna – Iintambo
Ii-antenna zocingo zezinye zezona ntlobo ziphambili zee-antenna. Ziyaziwa kwaye zisetyenziswa kakhulu. Ukuze siziqonde ngcono ii-antenna zocingo, masiqale sijonge umgca wothumelo. Umgca woThumelo Umgca wothumelo, okanye ucingo, uthwala amandla ombane...Funda ngokugqithisileyo -
Ithiyori ye-Antenna – I-Poynting Vector
Ii-Antenna zithumela okanye zifumana ulwazi ngokukhupha amandla e-electromagnetic. Ke ngoko, amandla kunye namandla ziiparameter eziphambili ezinxulumene nala maza e-electromagnetic, kwaye kubalulekile ukuxoxa ngazo. Amaza e-electromagnetic aquka zombini intsimi yombane kunye...Funda ngokugqithisileyo -
Ithiyori ye-Antenna – Ububanzi beBeamwidth
Kwipateni yemitha ye-antenna, i-lobe ephambili imele umqadi oyintloko we-antenna, apho amandla aphezulu kunye nawona aqokelelweyo akhutshwa khona. Ububanzi be-beadwidth bububanzi be-angle ye-aperture apho uninzi lwamandla lukhutshwa khona. Ezimbini eziphambili ...Funda ngokugqithisileyo -
Ithiyori ye-Antenna – Imisebe kunye nokuHlanganisa
Esi sahluko sixoxa ngemilinganiselo yemitha ye-antenna, esinceda siqonde iinkcukacha zemitha. Indawo yemitha Ngokwenkcazo eqhelekileyo: “Ukuba amandla emitha i-P(θ,ϕ) ahlala kwixabiso lawo eliphezulu ngaphezulu...Funda ngokugqithisileyo -
Ithiyori ye-Antenna — Imitha ye-Isotropic
Kwisahluko esidlulileyo, sixoxe ngeepateni zemitha. Ukuze uhlalutye ngcono imitha ye-antenna, kufuneka indawo yokubhekisa. Imitha ye-antenna ye-isotropic izalisekisa le ndima. Inkcazelo Imitha ye-Isotropic ibhekisa kwimitha evela kumthombo wenqaku...Funda ngokugqithisileyo -
Ithiyori ye-Antenna – Iipateni zeMisebe
Imitha ligama elichaza amandla amaza e-electromagnetic adluliselwa okanye afunyanwa yi-antenna. Kuyo nayiphi na imifanekiso ye-antenna, umzobo obonisa iimpawu zemitha ye-antenna waziwa njengephethini yayo yemitha. Ngokujonga imitha...Funda ngokugqithisileyo -
Ithiyori ye-Antenna – Intsimi Ekufutshane neNdawo Ekude
Emva kwengxoxo ngeeparameters ze-antenna ezisisiseko kwisahluko esidlulileyo, esinye isihloko esibalulekileyo ekufuneka siqwalaselwe yimimandla ye-antenna ekufutshane nentsimi kunye nentsimi ekude. Ubungakanani bemitha obulinganiswa kufutshane ne-antenna bahlukile kobo bulinganiswa kumgama. ...Funda ngokugqithisileyo -
Ithiyori ye-Antenna - Iiparamitha eziSiseko
Esi sahluko sazisa ngemida esisiseko yonxibelelwano olungenazingcingo, ejolise ekunikeni ukuqonda okungcono indima yee-antenna kwiinkqubo zonxibelelwano. Unxibelelwano olungenazingcingo lwenziwa ngendlela yamaza e-electromagnetic, nto leyo eyenza kube yimfuneko ukuphelisa...Funda ngokugqithisileyo -
Isikhokelo Esona Siphezulu see-Antennas: Indlela ezisebenza ngayo ii-Antennas
Ii-antenna zizixhobo zonxibelelwano eziqhelekileyo ebomini bethu. Nangona kunjalo, uninzi lwabantu aluziqondi ngokwenene, mhlawumbi lusazi nje ukuba zisetyenziselwa ukudlulisa nokufumana imiqondiso. Okumangalisayo kukuba, ukususela oko isazinzulu saseRashiya uPopov wayila ngempumelelo i-antenna ngo-18...Funda ngokugqithisileyo -
I-AESA vs PESA: Indlela Uyilo lwee-Antenna zanamhlanje oluguqula ngayo iinkqubo zeradar
Utshintsho oluvela kwi-Passive Electronically Scanned Array (PESA) ukuya kwi-Active Electronically Scanned Array (AESA) lubonisa inkqubela phambili ebalulekileyo kubuchwepheshe be-radar banamhlanje. Ngelixa zombini ezi nkqubo zisebenzisa i-electronic beam steering, uyilo lwazo olusisiseko lwahlukile...Funda ngokugqithisileyo
