Domin daidaitawa da buƙatun kusurwar eriya na sabon samfurin kuma raba ƙirar PCB na ƙarni na baya, ana iya amfani da shimfidar eriya mai zuwa don cimma nasarar eriya na 14dBi@77GHz da aikin radiation na 3dB_E/H_Beamwidth=40°.Amfani da Rogers 4830 farantin, kauri 0.127mm, Dk=3.25, Df=0.0033.
Tsarin eriya
A cikin wannan adadi na sama, ana amfani da eriya grid microstrip.Eriyar tsararrun grid na microstrip nau'in eriya ce da aka samar ta hanyar cascading abubuwa masu haskakawa da layin watsawa ta hanyar zoben microstrip N.Yana da ƙaramin tsari, babban riba, sauƙin ciyarwa da Sauƙin ƙira da sauran fa'idodi.Babban hanyar polarization ita ce polarization na layi, wanda yayi kama da eriyar microstrip na al'ada kuma ana iya sarrafa shi ta hanyar fasahar etching.Ƙunƙarar grid, wurin ciyarwa, da tsarin haɗin kai tare suna ƙayyade rarrabawar yanzu a cikin tsararrun, kuma halayen radiation sun dogara da lissafin grid.Ana amfani da girman grid ɗaya don tantance mitar tsakiyar eriya.
RFMISO jerin samfuran eriya:
Saukewa: RM-PA7087-43
RM-PA1075145-32
RM-SWA910-22
RM-PA10145-30
Binciken ƙa'ida
Halin da ke gudana a tsaye a tsaye na ɓangaren tsararru yana da daidai girman girma da juyawa, kuma ƙarfin radiation yana da rauni, wanda ba shi da ɗan tasiri akan aikin eriya.Saita faɗin tantanin halitta l1 zuwa rabin tsawon zango kuma daidaita tsayin tantanin halitta (h) don cimma bambancin lokaci na 180° tsakanin a0 da b0.Don radiation mai faɗi, bambancin lokaci tsakanin maki a1 da b1 shine 0 °.
Tsarin kashi na tsararru
Tsarin ciyarwa
Eriya-nau'in grid yawanci suna amfani da tsarin ciyarwar coaxial, kuma an haɗa mai ciyarwa zuwa bayan PCB, don haka mai ciyarwa yana buƙatar ƙira ta hanyar yadudduka.Don ainihin aiki, za a sami wani kuskuren daidaito, wanda zai shafi aiki.Don saduwa da bayanin lokaci da aka kwatanta a cikin wannan adadi na sama, ana iya amfani da tsarin ciyarwa na bambance-bambancen tsari, tare da haɓaka girman girman kai tsaye a tashoshin jiragen ruwa guda biyu, amma bambancin lokaci na 180°.
Tsarin ciyarwar Coaxial[1]
Yawancin eriya na grid na microstrip suna amfani da ciyarwar coaxial.Matsayin ciyarwar eriyar tsararrun grid an raba su zuwa nau'i biyu: ciyarwar ta tsakiya (madaidaicin ciyarwa 1) da ciyarwar gefuna (makin ciyarwa 2 da wurin ciyarwa 3).
Tsarin grid na al'ada
A lokacin ciyarwar gefen, akwai raƙuman ruwa masu yawo da ke ratsa dukkan grid akan eriyar grid array, wacce ba ta jujjuya jeri-jeri na ƙarshen wuta ba.Za'a iya amfani da eriyar tsararrun grid azaman eriyar igiyar igiyar tafiya da eriya mai resonant.Zaɓin mitar da ta dace, wurin ciyarwa, da girman grid yana ba da damar grid ta yi aiki a cikin jihohi daban-daban: igiyar tafiye-tafiye (tsarar da mitoci) da rawa (fitarwa na gefe).A matsayin eriyar igiyar igiyar tafiya, eriyar tsararrun grid tana ɗaukar nau'in ciyarwar gefuna, tare da ɗan gajeren gefen grid ɗin ya fi girma fiye da kashi ɗaya bisa uku na tsayin raƙuman jagora da tsayin gefen tsakanin sau biyu zuwa uku na gajeren gefen. .A halin yanzu a kan gajeren gefen ana watsa shi zuwa wancan gefe, kuma akwai bambanci tsakanin sassan gajere.Eriya masu balaguro (marasa ƙararrawa) grid eriya suna haskaka karkatattun katako waɗanda suka karkata daga al'adar al'amuran grid.Hanyar katako tana canzawa tare da mita kuma ana iya amfani da ita don duba mitar.Lokacin da aka yi amfani da eriyar tsararrun grid azaman eriya mai faɗakarwa, an ƙera ɓangarorin dogayen da gajere na grid don zama tsayin raƙuman raɗaɗi ɗaya da rabin madaidaicin zangon mitar ta tsakiya, kuma ana ɗaukar hanyar ciyarwa ta tsakiya.Matsakaicin halin yanzu na eriyar grid a cikin yanayin da ya dace yana gabatar da rarraba raƙuman ruwa a tsaye.Radiation yawanci yakan haifar da gajerun bangarorin, tare da dogayen bangarorin suna aiki azaman layin watsawa.Eriyar grid tana samun mafi kyawun tasirin radiation, matsakaicin radiation yana cikin yanayin radiation mai faɗi, kuma polarization yana daidai da ɗan gajeren gefen grid.Lokacin da mitar ta rabu da mitar cibiyar da aka ƙera, gajeriyar gefen grid ɗin ba ta zama rabin tsawon zangon jagora ba, kuma rarrabuwar katako yana faruwa a cikin ƙirar hasken wuta.[2]
Samfurin Array da tsarin sa na 3D
Kamar yadda aka nuna a sama a adadi na tsarin eriya, inda P1 da P2 suke 180 ° daga lokaci, ana iya amfani da ADS don ƙirar ƙira (ba a tsara su a cikin wannan labarin ba).Ta hanyar ciyar da tashar jiragen ruwa daban, ana iya lura da rarrabawar yanzu akan nau'in grid guda ɗaya, kamar yadda aka nuna a cikin bincike na ƙa'ida.Matsalolin da ke cikin matsayi na tsaye suna cikin saɓani dabam-dabam (sokewa), kuma igiyoyin da ke cikin madaidaicin matsayi suna da girman girman daidai kuma a cikin lokaci (superposition).
Rarrabawa na yanzu akan makamai daban-daban1
Rarraba halin yanzu akan makamai daban-daban 2
Abin da ke sama yana ba da taƙaitaccen gabatarwa ga eriyar grid, kuma yana tsara tsararru ta amfani da tsarin ciyarwar microstrip mai aiki a 77GHz.A haƙiƙa, bisa ga buƙatun gano radar, ƙila za a iya rage ko ƙara lambobi a tsaye da a kwance na grid don cimma ƙirar eriya a takamaiman kusurwa.Bugu da ƙari, za a iya gyara tsawon layin watsawa na microstrip a cikin hanyar sadarwar ciyarwa daban don cimma bambancin lokaci daidai.
Lokacin aikawa: Janairu-24-2024
