Isantena Ekuhlelela Umkhawulo Wokuxhumana: Isinyathelo Esiphambili Sokugcina Isiyinalo Kukuxhumano Okuphephile

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isantenna yekhono elihlukileyo

Isi-antenna eduke kanye nezimpawu ezimbili (dipole) yindlela encane ye-RF (radio frequency) etholakale kwezimpawu ezimbili efanayo ezinhlanganiselweyo kuhumusho olulayishwe. Le ndlela yabantu kakhulu kuleyo ndlela yokuthumela nokubona izimpawu zemifambo yesikwele kuhumusho olulodwa, lokhu kwenza ikhona lokusebenza kakhulu kuleyo ndlela yokuxhumana. Isakhiwo esibonakalayo sinezimpawu ezimbili ezifanayo ezinezimali ezifanayo, okungenzeka ukuba zimele kanye nezona kwekuphela kwekuphela, zihlelwe kanye nezona kwekuphela kwekuphela kusona esibonakalayo esikhulu esiseduze neqondo lokuxhumana. Oku kubonisa ukuba isi-antenna eduke kanye nezimpawu ezimbili (dipole) isebenza ngokuthi kuthwale izimpawu zesi-radio kuhumusho olulodwa, okwenza ukuba kube khona okuphakeme kakhulu nokuthuthukiswa kwezimpawu kuleyo qhawekisa indawo. Isimo sokuthumelwa kwezimpawu sisi-figwa elinesibindi esikhulu xa kujwayele kusona, nezimpawu ezikhulu zokuthumelwa kusona esingaphezulu kwe-axis yesi-antenna futhi kungenani kakhulu kwezimpawu esikunene. Le nto yokuthi kusebenza kahle kuleyo ndlela ikhona kakhulu kuleyo ndlela yokuxhumana kusona esibonile, ukusebenzisa kakhulu, nokuxhumana ngokwezinhlangano zokuxhumana apho kudingekile ukuthumela izimpawu ngokucacileyo. Isakhiwo se-antenna sivumela ukusebenza kwezinhlangano ezahlukene, futhi ukuthuthukiswa kwayo kuvumela ukusebenza kahle kuleyo ndawo yezimo zokuziphatha.

Imikhiqizo Emisha

I-antenna yedipole enkizwana inamaqondo amaningi okwenza yinto ephathelene ngokukhanya kwezindlela zokuxhumana zasekhaya. Okokuqala, izici zokukhanya kwake zenze ukuthumelwe kwe-isikhungo kudingeka, okwenza ukuthi kube nezinteko eziphakeme kanye nokhululeka kwe-isikhungo endaweni ethikeyo. Le nto ethikeyo kakhulu iba yindlela yokuthiwa kwezindlela ezingathinteki kanye nokhululeka kwezokuxhumana ngokubanzi. Isakhiwo se-antenna esijwayelekile kodwa esebenza kakhulu kungenxa yokuqinile kwayo kanye nokulula kokulungisa, okwenza yinto ethintekile ekusebenzeni ngokudala. Inqubo yokuthi yilapho kakhulu iyisampula yekhweyithi, ekuvuneni ukuthi abasebenzisi babekwe ngendlela yokuthiwa kwekhweyithi ngokulandela ubude bezingxenye. Iindlela zokusebenza ngokuhlawulwa kwe-antenna zenze ukuthi kungathathwa kakhulu isikhungo, okwenza ukuthi kube nenjongo yokuxhumana kanye nokhululeka. Ubude bawo obuncane ngokulinganisela nezinye i-antenna ezinemigqa yokukhanya kwenza ukuthi kube yisampula yezindlela zokufaka, kusuka kuzindlu zasekhaya kuya kumaqondo amakhankatha. Izici zokuxhumana ngekhweyithi zasebenzisa i-antenna yokukhanya zenze ukuthi kube yilula ukuxhumana nezikhungo eziphawulweyo, okulungisa ukuxhumana. Kananjalo, ukuthiwa kwayo okukhanyayo kuthola ukuthiwa kwezinye izimo zasekhaya, okungenxa yokuthi kube nenjongo yokusebenza ngokudala. Isimo sokuthiwa kwekhweyithi sokuqala kwayo kusiza ekuplaneni kanye nokuthiwa kwekhweyithi, noma yikuphi ukuthiwa kwayo kungadingi amanzi okusebenza, okuthiwa kwezindleko zokusebenza kanye nokulahlekelwa kwezinto.

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isantenna yekhono elihlukileyo

Ukubukela kwe-Signal kunye nokunyusa

Ukubukela kwe-Signal kunye nokunyusa

Indlela yokukhanya yase-dipole yokuhlela umdla wokuthiwa kuyindlela yokuthiwa kwenza amandla okuqinisa ukuthiwa kwezinsimbi zokuxhumana (RF) esikweni esithile, ukuthola amandla aphezulu kunazo zokuxhumana nezinye izinhlelo. Le ndlela yokuthiwa yenza ukuthi kusetshenziswe amandla ngokunemilengwane kakhulu futhi kube nemilengwane echaza ukutholwa kwezinhlelo esikweni esifanele. Isakhiwo samathuluzi senza i-lobhi enkulu enqunyiweyo yokuthiwa kakhulu kwezinsimbi ezikhiwe esikweni esifanele, ngesikhathi esifanayo sikhupha amalobhi amaningi angachaza ukuthulwa. Le ndlela yokuhlela kuyindlela yokuthiwa kungcono lapho kudingeka ukuthiwa okuhleliwe kudingeka, njengoba kukhona ukuxhumana okuhlanganisa noma ukuphakama kwekhanda lapho kusebenza izinhlelo zokuxhumana. Amandla aphezulu nayo enza ukuthi kube nemilengwane encane futhi kube nemilengwane echaza ubunzima, ukwenza kungcono ukuxhumana kude kakhulu noma kungcono ukutholwa kwezinhlelo ngaphansi kwezinsimbi ezincane.
Ukutholwa kwezinsimbi nokusebenza kwezinsimbi

Ukutholwa kwezinsimbi nokusebenza kwezinsimbi

Enye yezinto eziphakeme kakhulu kwesithuthi sase-dipole silandelwe yis frequency adaptability nezinto zobunzima obungcono. Isakhiwo samandla wesithuthi senze ukuba kube lula ukuvula ubude besithuthi, okwenzeke kakhulu kubandakona nezisebenziso zokulingana. Le adaptability iyindlela yokuba kube nendawo enkulu yokulingana, ngaphandle kokuthi kufanele kwenzeke ukulingana okuphezulu. Impedance yesithuthi isohlwa ngokuphezulu kwayo indawo yokusebenza, okwenze ukuba kube nendawo yokusebenza ngokuphezulu kwayo futhi isohlise ukuthi kudingekile ukuvula futhi ukuvakashela kabusho. Le bandwidth stability iyinkimbinkimbi kakhulu kuzo zisebenziso ezidinga ukusebenza ngokuphelele kudaniso noma kuzo zimo apho ifrequency agility iyinkimbinkimbi.
Ubunzima nezimo zokulinganisa

Ubunzima nezimo zokulinganisa

Ukweywayela kwenkqubo yamandla yedipole kakhulu ibhokisela ukuphezulu nokuthula ngokude kuzindlela zokulandelana nezimali. Inkqubo yamandla enkulu, okungenhla inamathiphu amathile nezilayili ezinhle, iyabelana ngokuhle nokulwa, ukubhuka, ukudonsa nezinye izinsuku zokulwa kwezulu. Inkqubo yamandla yenziwe ukunciphisa inani lezindawo ezingekho ukungcola, okunikeza ukuthula ngokude nokunciphisa izidingo zokulungiswa. Izindleko ezisetyenziswayo kuzweni ukwenza kakhulu zikhethwe ngokucacileyo ukunceda ukungcola kwaye uyilo ukuphezulu kuzweni ngokude, nokuba kuzindaweni zasekapa okanye kuzindawo zokuchithwa. Le nto iyabelana ngokuhlukile kuzweni ukulawulwa kwezimali, kwenza ukuba yinto e suitable kakhulu kuzweni ukulawulwa kwezimali apho ukuphezulu nokunciphisa izidingo zokulungiswa ziyindlela ebalulekileyo. Ukuphezulu kwenkqubo yamandla, engenazo zinto ezenziwa ngokwezifiso okanye ukunikezwa kwegesi, ikunye nokuthula ngokuba inqaba lezindawo ezingekho ukungcola ezixhakanyayo nezinto ezenziwa ngokwezifiso.

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