Ihe ntụgharị ihu trihedral, nke a makwaara dị ka ihe ntụgharị nkuku ma ọ bụ ihe ngbanwe triangular, bụ ngwaọrụ a na-achọsi ike nke a na-ejikarị na antennas na sistemụ radar.Ọ nwere ihe ngosipụta atụmatụ atọ na-eme usoro triangular mechiri emechi.Mgbe ebili mmiri electromagnetic dakwasịrị ihe ntụgharị trihedral, ọ ga-atụgharị azụ n'akụkụ ntụzịaka ahụ merenụ, na-akpụ ebili mmiri na-egosipụta nke ha nhata na ntụzịaka mana na-emegide ya n'oge ebili mmiri merenụ.

Ihe na-esonụ bụ mmeghe zuru ezu maka ndị na-atụgharị nkuku trihedral:

Nhazi na ụkpụrụ:

Ntụgharị nkuku trihedral nwere ihe ntụgharị atụmatụ atọ gbadoro ụkwụ n'otu ebe nrụrụ aka, na-akpụ triangle nha nhata.Ngosipụta ụgbọ elu ọ bụla bụ enyo ụgbọ elu nke nwere ike igosipụta ebili mmiri merenụ dịka iwu ntụgharị uche siri dị.Mgbe ebili mmiri merenụ dakwasịrị nkuku trihedral reflector, onye na-atụgharị atụmatụ atụmatụ ọ bụla ga-egosipụta ya ma mechaa mepụta ebili mmiri na-egosipụta.N'ihi geometry nke trihedral reflector, ebili mmiri a na-egosipụta na-egosipụta n'ụzọ nhata ma na-emegide ya karịa ebili mmiri ahụ merenụ.

Atụmatụ na ngwa:

1. Ntụle ntụgharị uche: Ndị na-atụgharị nkuku Trihedral nwere àgwà ntụgharị dị elu na oge ụfọdụ.Ọ nwere ike na-egosipụta ihe merenụ na-efegharị azụ na nnukwu nlegharị anya, na-akpụ mgbama ntụgharị pụtara ìhè.N'ihi nha anya nke nhazi ya, ntụzịaka nke ebili mmiri na-egosipụta site na trihedral reflector hà nhata na ntụzịaka nke ebili mmiri ahụ merenụ ma na-emegide ya na nkeji oge.

2. Ngosipụta siri ike na-egosipụta: Ebe ọ bụ na akụkụ nke ebili mmiri na-egosipụta na-emegide, mgbe trihedral reflector na-emegide ntụziaka nke ebili mmiri merenụ, ihe ngosi na-egosipụta ga-adị ike nke ukwuu.Nke a na-eme ka ihe ntụgharị akụkụ trihedral bụrụ ngwa dị mkpa na sistemụ radar iji kwalite mgbama nkwughachi nke ebumnuche.

3. Directivity: Ngosipụta ntụgharị uche nke nkuku trihedral reflector bụ ntụzịaka, ya bụ, a ga-emepụta akara ngosi siri ike naanị n'otu akụkụ ihe merenụ.Nke a na-eme ka ọ baa uru nke ukwuu na antennas ntụziaka na sistemụ radar maka ịchọta na ịlele ọnọdụ ebumnuche.

4. Dị Mfe na echekwa: Ọdịdị nke trihedral nkuku reflector bụ dịtụ mfe na mfe imepụta na wụnye.A na-ejikarị ihe ndị na-acha ọla mee, dị ka aluminom ma ọ bụ ọla kọpa, nke nwere ọnụ ala dị ala.

5. Ngwa ngwa: Trihedral akuku reflectors na-ọtụtụ ebe na-eji radar usoro, wireless nkwurịta okwu, ụgbọ elu igodo, nha na n'ọkwa na ndị ọzọ ubi.Enwere ike iji ya dị ka njirimara ebumnuche, nsonye, nchọta ntụziaka na antenna calibration, wdg.

N'okpuru, anyị ga-ewebata ngwaahịa a n'ụzọ zuru ezu:

Ka iwelie ntụzịaka nke antenna, ihe ngwọta nwere nghọta bụ iji ihe ntụgharị.Dịka ọmụmaatụ, ọ bụrụ na anyị na-amalite site na eriri waya (ka anyị kwuo antenna dipole ọkara-efegharị efegharị), anyị nwere ike idowe mpempe akwụkwọ n'azụ ya iji duzie radieshon n'ihu n'ihu.Iji nwekwuo ntụzịaka, enwere ike iji ihe ntụgharị nkuku, dị ka egosiri na eserese 1. Akụkụ dị n'etiti efere ga-abụ ogo 90.

Ọgụgụ 1. Geometry nke Nkuku Reflector.

Enwere ike ịghọta ụkpụrụ radieshon nke antenna a site na iji echiche onyonyo, wee gbakọọ nsonaazụ ya site na usoro nhazi.Maka ntụle dị mfe, anyị ga-eche na efere ndị na-egosipụta enweghị ngwụcha n'oke.Ọnụọgụ 2 dị n'okpuru na-egosi nkesa isi iyi kwekọrọ, dị irè maka mpaghara dị n'ihu efere.

Ọgụgụ 2. Isi mmalite ndị kwekọrọ na oghere efu.

Okirikiri nwere ntụpọ na-egosi antennas nke nwere antenna n'ezie;antenna x'd out dị ogo 180 site na nkeji ruo na antenna n'ezie.

Were ya na antenna mbụ nwere ụkpụrụ omnidirectional nke (）) nyere.Mgbe ahụ usoro nke radieshon (R) nke "nhazi nke radiators" nke eserese 2 nwere ike dee dị ka:

Nke a dị n'elu na-esote site na eserese 2 na usoro nhazi (k bụ nọmba ebili mmiri. Usoro ga-esi na ya pụta ga-enwe otu polarization dị ka antenna mbụ kwụ ọtọ. A ga-amụba ntụziaka ahụ site na 9-12 dB. Ngụkọta n'elu na-enye ubi ndị na-egbuke egbuke. na mpaghara dị n'ihu efere ndị ahụ Ebe ọ bụ na anyị chere na efere ndị ahụ enweghị njedebe, ubi dị n'azụ efere ndị ahụ bụ efu.

Ntuziaka ga-akacha elu mgbe d bụ ọkara wavelength.N'iche na ihe na-egbukepụ egbukepụ nke eserese 1 bụ obere dipole nwere ụkpụrụ nyere site na ( ) , egosipụtara ubi maka ikpe a na foto 3.

Ọgụgụ 3. Ụdị polar na azimuth nke ụkpụrụ radieshon nkịtị.

Ụdị radieshon, impedance na uru nke antenna ga-adị anya ga-emetụta yadnke eserese 1. Ntinye ntinye na-abawanye site na onye na-atụgharị uche mgbe oghere dị otu ọkara wavelength;enwere ike belata ya site n'ịkwaga antenna nso na reflector.OgologoLnke reflectors na Figure 1 na-emekarị 2*d.Agbanyeghị, ọ bụrụ na ịchọta ụzarị na-aga n'akụkụ y-axis site na antenna, nke a ga-egosipụta ma ọ bụrụ na ogologo ya pere mpe ( ).Elu nke efere kwesịrị ịdị ogologo karịa ihe na-egbuke egbuke;Otú ọ dị, ebe ọ bụ na antennas linear adịghị amụba nke ọma n'akụkụ z-axis, oke a adịghị mkpa nke ukwuu.