Onyonyo 1 na-egosi eserese a na-enwekarị oghere na-efegharị efegharị, nke nwere usoro ebili mmiri dị ogologo ma dị warara nwere oghere dị n'etiti.Enwere ike iji oghere a na-ebunye ebili mmiri electromagnetic.

ọgụgụ 1. Geometry nke antennas na-efegharị efegharị na-ahụkarị.

A na-enye erimeri n'ihu-ọgwụgwụ (Y = 0 ihu mepere emepe na ụgbọ elu xz).Ngwugwu dị anya na-abụkarị sekit dị mkpụmkpụ (ihe mkpuchi ọla).Ntugharị ebili mmiri nwere ike inwe obi ụtọ site na obere dipole (ahụ na azụ nke oghere oghere oghere) na ibe ahụ, ma ọ bụ site na ntuziaka ebili mmiri ọzọ.

Iji bido nyochaa antenna Figure 1, ka anyị leba anya n'ụdị sekit.The waveguide n'onwe ya na-arụ ọrụ dị ka nnyefe akara, na oghere dị na waveguide nwere ike na-ele anya dị ka myiri (yiri) nnabata.Ntugharị ebili mmiri ahụ dị mkpụmkpụ, ya mere, egosiri ụdị sekit dị nso na eserese 1:

ọgụgụ 2. Circuit nlereanya nke slotted waveguide antenna.

Oghere ikpeazụ bụ ebe dị anya "d" ruo na njedebe (nke dị mkpụmkpụ, dị ka egosiri na foto 2), na oghere oghere dị anya "L" site na ibe ya.

Ogo nke uzo ga-enye nduzi na ogologo wavelength.Ntugharị wavelength bụ ogologo ebili mmiri dị n'ime ntuziaka ebili mmiri.Ogologo ntuziaka ( ) bụ ọrụ nke obosara nke ebili mmiri ("a") na ogologo oghere ohere efu.Maka ụdị TE01 kachasị, ogologo ntụgharị ntụzịaka bụ:

A na-ahọrọ ebe dị n'etiti oghere ikpeazụ na njedebe "d" ka ọ bụrụ ogologo wavele nkeji nkeji iri na ise.The theoretical steeti nke nnyefe akara, nkeji iri na ise wavelength mkpụmkpụ-circuit impedance akara ebugara ala bụ oghe sekit.Ya mere, foto 2 na-ebelata ka:

image 3. Slotted waveguide sekit nlereanya iji nkeji nkeji wavelength mgbanwe.

Ọ bụrụ na ahọpụtara oke "L" ka ọ bụrụ ọkara wavelength, mgbe ahụ, a na-elele ntinye ž ohmic impedance na ọkara wavelength anya z ohms.The "L" bụ ihe mere imewe na-ihe dị ka ọkara a wavelength.Ọ bụrụ na e mere antenna oghere waveguide n'ụzọ dị otú a, mgbe ahụ enwere ike iwere oghere niile dị ka ihe yiri ya.Ya mere, ntinye ntinye na ntinye ntinye nke "N" element slotted array nwere ike gbakọọ ngwa ngwa dị ka:

Ntinye ntinye nke waveguide bụ ọrụ nke impedance oghere.

Biko mara na parampat imewe dị n'elu na-arụ ọrụ naanị otu ugboro.Ka ugboro ole na-esi n'ebe ahụ na-arụ ọrụ nhazi ebili mmiri, a ga-enwe mmebi na arụmọrụ nke antenna.Dị ka ọmụmaatụ nke iche echiche maka njirimara ugboro ole nke ebili mmiri nwere oghere, a ga-egosi nha nlele dịka ọrụ ugboro ugboro na S11.Emebere ntuziaka ebili mmiri ka ọ rụọ ọrụ na 10 GHz.A na-enye nri a na nri coaxial na ala, dịka egosiri na foto 4.

Onyonyo 4. A na-enye antenna oghere oghere site na nri coaxial.

E gosipụtara atụmatụ S-parameter nke pụtara n'okpuru.

IHE: antenna nwere nnukwu nkwụsị na S11 na ihe dịka 10 GHz.Nke a na-egosi na ọtụtụ n'ime ike ọkụ na-enwu n'oge a.bandwidth antenna (ma ọ bụrụ na akọwapụtara dị ka S11 bụ ihe na-erughị -6 dB) na-esi na ihe dịka 9.7 GHz gaa na 10.5 GHz, na-enye bandwit nke 8%.Rịba ama na enwerekwa resonance gburugburu 6.7 na 9.2 GHz.N'okpuru 6.5 GHz, n'okpuru mbelata waveguide ugboro na ọ fọrọ nke nta ka ọ dịghị ike na-enwu.Atụmatụ S-parameter egosiri n'elu na-enye ezi echiche nke ihe bandwit slotted waveguide ugboro àgwà yiri ya.

A na-egosi ụkpụrụ radieshon akụkụ atọ nke ebili mmiri slotted n'okpuru (a gbakọrọ nke a site na iji ngwugwu electromagnetic ọnụọgụ nke a na-akpọ FEKO).Uru nke antenna a bụ ihe dịka 17 dB.