Isibukisi se-trihedral, esaziwa nangokuthi isibukisi sekona noma isibukisi se-triangle, siwumshini oqondiswe ngokunganaki ovame ukusetshenziswa kuma-antenna kanye nezinhlelo ze-radar. Siqukethe izibukisi ezintathu ezihleliwe ezakha isakhiwo esinonxantathu esivaliwe. Lapho igagasi lika-electromagnetic lishaya isibukisi se-trihedral, lizobukiswa emuva ngendlela yesigameko, lenze igagasi elibonisiwe elilingana nesiqondiso kodwa eliphambene nesigaba segagasi lesigameko.

Okulandelayo isingeniso esinemininingwane mayelana nezibonisi zekona ze-trihedral:

Isakhiwo kanye nesimiso:

Isibuko sekona esinezinhlangothi ezintathu siqukethe izibuko ezintathu eziqondile ezigxile endaweni efanayo yokuhlangana, zakha unxantathu olinganayo. Isibuko sendiza ngasinye siyisibuko sendiza esingabonisa amagagasi esigameko ngokomthetho wokuzindla. Lapho igagasi lesigameko lishaya isibuko sekona esinezinhlangothi ezintathu, lizoboniswa yi-planar reflector ngayinye futhi ekugcineni lakhe igagasi elibonakalayo. Ngenxa ye-geometry yesibuko se-trihedral reflector, igagasi elibonakalayo liboniswa ngendlela efanayo kodwa ephambene negagasi lesigameko.

Izici kanye nezinhlelo zokusebenza:

1. Izici zokuzindla: Ama-reflectors ekhoneni le-Trihedral anezici zokuzindla eziphezulu ngemvamisa ethile. Angabonisa igagasi lesigameko emuva ngokukhanya okuphezulu, akha isignali yokuzindla esobala. Ngenxa yokulingana kwesakhiwo sawo, isiqondiso segagasi elibonakalayo esivela ku-reflector ye-trihedral silingana nesiqondiso segagasi lesigameko kodwa siphambene nesigaba.

2. Isignali ekhanyayo enamandla: Njengoba isigaba segagasi elikhanyayo siphambene, lapho isibonakaliso se-trihedral siphambene nesiqondiso segagasi lesigameko, isibonakaliso esikhanyayo sizoba namandla kakhulu. Lokhu kwenza isibonakaliso sekona se-trihedral sibe isicelo esibalulekile ezinhlelweni ze-radar ukuthuthukisa isibonakaliso se-echo sethagethi.

3. Ukuqondisa: Izici zokubonakalisa ze-trihedral corner reflector ziqondisa ngqo, okungukuthi, isignali yokubonakalisa enamandla izokhiqizwa kuphela engela ethile yesigameko. Lokhu kuyenza ibe usizo kakhulu kuma-antenna aqondisa ngqo kanye nezinhlelo ze-radar zokuthola nokulinganisa izikhundla eziqondiwe.

4. Kulula futhi kuyabiza: Isakhiwo sesibukisi sekona se-trihedral silula futhi kulula ukusenza nokusifaka. Ngokuvamile senziwe ngezinto zensimbi, njenge-aluminium noma ithusi, okunezindleko eziphansi.

5. Izinkambu Zokusebenza: Izibonisi zekona ze-Trihedral zisetshenziswa kabanzi ezinhlelweni ze-radar, ukuxhumana okungenantambo, ukuzulazula kwezindiza, ukulinganisa kanye nokubeka kanye nezinye izinkambu. Zingasetshenziswa njengokuhlonza okuqondiwe, ukujikeleza, ukuthola isiqondiso kanye ne-antenna yokulinganisa, njll.

Ngezansi sizokwethula lo mkhiqizo ngokuningiliziwe:

Ukuze kwandiswe ukuqondisa kwe-antenna, ikhambi eliqondakala kalula ukusebenzisa i-reflector. Isibonelo, uma siqala nge-antenna yocingo (ake sithi i-antenna ye-half-wave dipole), singabeka ishidi eliqhubayo ngemuva kwalo ukuze liqondise imisebe phambili. Ukuze kwandiswe ukuqondisa, kungasetshenziswa i-reflector yekona, njengoba kuboniswe kuMfanekiso 1. I-engeli phakathi kwamapuleti izoba ngama-degree angu-90.

Isithombe 1. Ijiyometri ye-Corner Reflector.

Iphethini yemisebe yale antenna ingaqondwa ngokusebenzisa ithiyori yesithombe, bese kubalwa umphumela ngethiyori ye-array. Ukuze kube lula ukuhlaziya, sizocabanga ukuthi amapuleti abonisayo angenamkhawulo ngobukhulu. Isithombe 2 ngezansi sibonisa ukusatshalaliswa komthombo okulinganayo, okusebenzayo esifundeni esiphambi kwamapuleti.

Umfanekiso 2. Imithombo elinganayo esikhaleni esikhululekile.

Izindilinga ezinamachashazi zibonisa ama-antenna asebenza ngesigaba ne-antenna yangempela; ama-antenna angaphandle angama-x'd angama-degrees angu-180 ngaphandle kwesigaba ne-antenna yangempela.

Ake sithi i-antenna yokuqala inephethini eliqondisa yonke indawo elinikezwe yi-（）. Bese kuthi iphethini yemisebe (R) "yesethi elinganayo yama-radiator" yeSithombe 2 ingabhalwa kanje:

Lokhu okungenhla kulandela ngqo ku-Figure 2 kanye ne-array theory (k yinombolo yamagagasi. Iphethini ephumayo izoba ne-polarization efanayo ne-antenna yokuqala e-polarized vertically. I-directivity izokhushulwa ngo-9-12 dB. I-equation engenhla inikeza amasimu akhishwa imisebe esifundeni esiphambi kwamapuleti. Njengoba besicabanga ukuthi amapuleti ayengenamkhawulo, amasimu angemuva kwamapuleti ayi-zero.

Isiqondiso sizoba sikhulu kakhulu uma u-d engu-half-wavelength. Uma sicabanga ukuthi i-radiating element ye-Figure 1 iyi-dipole emfushane enephethini enikezwe ngu-(), amasimu alesi simo aboniswe ku-Figure 3.

Umfanekiso 3. Amaphethini e-polar kanye ne-azimuth ephethini yemisebe evamile.

Iphethini yemisebe, impedance kanye nokuzuza kwe-antenna kuzothonywa yibanga.dse-Figure 1. I-input impedance ikhuliswa yi-reflector uma isikhala singu-half wavelength; ingancishiswa ngokuhambisa i-antenna eduze kwe-reflector. UbudeLama-reflectors ku-Figure 1 ngokuvamile angama-2*d. Kodwa-ke, uma ulandela i-ray ehamba nge-y-axis kusuka ku-antenna, lokhu kuzobonakala uma ubude okungenani bungu-( ). Ukuphakama kwamapuleti kufanele kube kuphakeme kune-element ekhipha imisebe; noma kunjalo njengoba ama-antenna aqondile engakhanyi kahle nge-z-axis, le parameter ayibalulekile kakhulu.