I-radar antenna2

Ububanzi belobe eyinhloko
Kunoma iyiphi i-antenna, ezimweni eziningi, iphethini yayo yokuqondisa ngaphezulu noma ngaphezulu ivame ukuma kwe-petal, ngakho iphethini yokuqondisa ibizwa nangokuthi iphethini ye-lobe.I-lobe ene-radiation ephezulu yokuqondisa ibizwa ngokuthi i-lobe eyinhloko, kanti enye ibizwa ngokuthi i-side lobe.
Ububanzi belobe buphinde buhlukaniswe ngamandla ayingxenye (noma 3dB) ububanzi belobe kanye nobubanzi belobe yamandla ayiziro.Njengoba kuboniswe emfanekisweni ongezansi, kuzo zombili izinhlangothi zevelu enkulu ye-lobe eyinhloko, i-engeli ephakathi kwezinkomba ezimbili lapho amandla ehla abe yisigamu (izikhathi ezingu-0.707 zokuqina kwenkundla) ibizwa ngokuthi ububanzi be-lobe yamandla angu-half.

I-engeli ephakathi kwezikhombisi-ndlela ezimbili lapho amandla noma umfutho wenkambu wehlela kuziro wokuqala ubizwa ngokuthi ububanzi belobe yamandla ayiziro.

I-antenna polarization
I-polarization iyisici esibalulekile se-antenna.I-polarization yokudlulisa i-antenna yisimo sokunyakaza se-vector yenkundla kagesi ekugcineni kwe-antenna esakaza igagasi lozibuthe kagesi kuleli cala, futhi i-polarization etholayo yisimo sokunyakaza sendawo yokugcina ye-vector yenkundla kagesi yegagasi lendiza yesigameko ethola i-antenna kulokhu. isiqondiso.
I-polarization ye-antenna ibhekisela ekuhlukaniseni i-vector yenkundla ethile yegagasi lomsakazo, kanye nesimo sokunyakaza sephuzu lokugcina le-vector yenkundla kagesi ngesikhathi sangempela, okuhlobene nokuqondiswa kwendawo.I-antenna esetshenziswa ekusebenzeni ngokuvamile idinga i-polarization.
I-polarization ingahlukaniswa nge-polarization yomugqa, i-circular polarization kanye ne-elliptic polarization.Njengoba kuboniswe emfanekisweni ongezansi, lapho i-trajectory ye-endpoint ye-vector field kagesi kuMfanekiso (a) iwumugqa oqondile, futhi i-Angle phakathi komugqa ne-X-axis ayishintshi ngokuhamba kwesikhathi, leli gagasi le-polarized libizwa ngokuthi. igagasi le-polarized linearly.

Uma kubhekwa lapho kusakazeka khona, ukuzungezisa okulandela iwashi kwevekhtha yasensimini kagesi kubizwa ngokuthi igagasi eliyindilinga eliyindilinga elisesandleni sokudla, futhi ukuzungezisa okuphambene newashi kubizwa ngokuthi igagasi eliyindilinga elingakwesokunxele.Uma kubhekwa lapho kusakazeka khona, amagagasi asesandleni sokudla azungeza ngokuphambene newashi futhi amagagasi asesandleni sobunxele azungeza njengokuya kwewashi.

Izidingo ze-radar zezimpondo
Njenge-radar antenna, umsebenzi wayo ukuguqula inkambu yegagasi eqondisiwe ekhiqizwe isidluliseli ibe yinkundla yemisebe yasemkhathini, ithole i-echo evezwa emuva into eqondiwe, futhi iguqule amandla e-echo ibe inkambu yegagasi eqondisiwe ukuze idluliselwe kumamukeli.Izidingo eziyisisekelo ze-radar ye-antenna ngokuvamile zifaka:
Inikeza ukuguqulwa kwamandla okuphumelelayo (okukalwa ngokusebenza kahle kwezinti) phakathi kwenkundla yemisebe yesikhala kanye nolayini wokudlulisela;Ukusebenza kahle kwe-antenna kubonisa ukuthi amandla e-RF akhiqizwa isidluliseli angasetshenziswa ngempumelelo
Ikhono lokugxilisa amandla efrikhwensi ephezulu lapho kuqondiswe khona noma ukuthola amandla emvamisa ephezulu ukusuka lapho kuqondiswe khona (kukalwa ngenzuzo ye-antenna)
Ukusatshalaliswa kwamandla kwenkundla yemisebe yesikhala emkhathini kungaziwa ngokuya ngomsebenzi we-airspace ye-radar (ekalwa ngomdwebo wesiqondiso se-antenna).
Ukulawulwa kwe-polarization okulula kufana nezici ze-polarization zethagethi
Isakhiwo esiqinile semishini nokusebenza okuguquguqukayo.Ukuskena indawo ezungezile kungalandelela kahle okuqondiwe futhi kuvikele emiphumeleni yomoya
Hlangana nezidingo zamaqhinga ezifana nokuhamba, ukufihlakala kalula, ukufaneleka kwezinjongo ezithile, njll.