Kugirango uhuze na antenna inguni y'ibicuruzwa bishya no gusangira urupapuro rwabanjirije urupapuro rwa PCB, imiterere ya antenna ikurikira irashobora gukoreshwa kugirango umuntu yunguke antenne ya 14dBi @ 77GHz hamwe nimirasire ya 3dB_E / H_Beamwidth = 40 °.Ukoresheje isahani ya Rogers 4830, uburebure bwa 0.127mm, Dk = 3.25, Df = 0.0033.
Imiterere ya Antenna
Mu gishushanyo cyavuzwe haruguru, antenna ya microstrip grid ikoreshwa.Microstrip grid array antenna nuburyo bwa antenne bwakozwe nibintu byerekana imirasire yumurongo hamwe numurongo woherejwe byakozwe nimpeta ya N microstrip.Ifite imiterere yoroheje, inyungu nyinshi, kugaburira byoroshye no koroshya gukora nibindi byiza.Uburyo nyamukuru bwa polarisiyonike ni umurongo wa polarisiyonike, isa na antenne ya microstrip isanzwe kandi irashobora gutunganywa hakoreshejwe ikoranabuhanga.Imiyoboro ya gride, aho igaburira, hamwe nuburyo bwo guhuza hamwe bigena ikwirakwizwa ryubu murwego rwinshi, kandi ibiranga imirasire biterwa na geometrie.Ingano imwe ya gride ikoreshwa muguhitamo hagati ya antenne.
RFMISO array antenna yuruhererekane:
RM-PA7087-43
RM-PA1075145-32
RM-SWA910-22
RM-PA10145-30
Isesengura ry'amahame
Ibiriho bitemba mu cyerekezo cyerekezo cyibikoresho bya array bifite amplitude hamwe nicyerekezo cyinyuma, kandi ubushobozi bwimirasire ni ntege nke, bigira ingaruka nke kumikorere ya antenne.Shiraho ubugari bwakagari l1 kugeza igice cya kabiri cyumurambararo hanyuma uhindure uburebure bwakagari (h) kugirango ugere kubice bitandukanye bya 180 ° hagati ya a0 na b0.Kumirasire yagutse, itandukaniro ryicyiciro hagati yingingo a1 na b1 ni 0 °.
Imiterere yibintu
Kugaburira imiterere
Antenne yo mu bwoko bwa gride isanzwe ikoresha imiterere yo kugaburira coaxial, kandi ibiryo bihuza inyuma ya PCB, bityo rero ibiryo bigomba gukenerwa binyuze mubice.Kubikorwa nyabyo, hazabaho amakosa yukuri, azagira ingaruka kumikorere.Kugirango uhuze amakuru yicyiciro yasobanuwe mumashusho yavuzwe haruguru, hashobora gukoreshwa imiterere yimirire itandukanye ya planar itandukanye, hamwe nibyishimo bingana na amplitude ku byambu byombi, ariko ikinyuranyo cyicyiciro cya 180 °.
Imiterere y'ibiryo bya Coaxial [1]
Hafi ya microstrip grid array antenne ikoresha kugaburira coaxial.Imyanya yo kugaburira antenne ya gride igizwe ahanini nubwoko bubiri: kugaburira hagati (kugaburira ingingo 1) no kugaburira inkombe (kugaburira ingingo 2 no kugaburira ingingo 3).
Imiterere ya grid array imiterere
Mugihe cyo kugaburira ku nkombe, hari imiraba yingendo izenguruka gride yose kuri gride array antenna, ikaba itari resonant imwe-icyerekezo cyanyuma-umuriro.Antenna ya grid array irashobora gukoreshwa nka antenne yingendo yingendo na antenne yumvikana.Guhitamo inshuro zikwiye, aho zigaburira, hamwe nubunini bwa gride ituma gride ikora muri leta zitandukanye: ingendo yumurongo (gusiba inshuro) hamwe na resonance (emission emission).Nka antenne yingendo, antenna ya gride array ifata uburyo bwo kugaburira ibiryo byuruhande, hamwe nuruhande rugufi rwa gride nini cyane kurenza kimwe cya gatatu cyumurongo wumurongo uyobora hamwe nuruhande rurerure hagati yinshuro ebyiri na eshatu z'uburebure bwuruhande rugufi. .Ibiriho kuruhande rugufi byoherezwa kurundi ruhande, kandi hariho itandukaniro ryicyiciro hagati yimpande ngufi.Ingendo zingendo (non-resonant) gride antenne irasa imirishyo ihengamye itandukana nicyerekezo gisanzwe cyindege ya gride.Icyerekezo cyerekezo gihinduka hamwe ninshuro kandi birashobora gukoreshwa mugusikana inshuro.Iyo gride array antenne ikoreshwa nka antenne yumvikana, impande ndende kandi ngufi za gride zashizweho kugirango zibe umurongo umwe wogukurikirana hamwe nigice cyumurambararo wumurongo wumurongo wo hagati, kandi uburyo bwo kugaburira hagati burakoreshwa.Umuyoboro uhita wa gride antenne muri resonant leta irerekana ikwirakwizwa rihagaze.Imirasire ikorwa ahanini nimpande ngufi, hamwe nimpande ndende zikora nkumurongo wohereza.Antenna ya gride ibona ingaruka nziza yimirasire, imirasire ntarengwa iri mumirasire yagutse yimirasire, kandi polarisiyasi irasa nuruhande rugufi rwa gride.Iyo inshuro zitandukanije na centre yagenewe inshuro, uruhande rugufi rwa gride ntirukiri kimwe cya kabiri cyumurongo wumurongo wumurongo, kandi gucamo ibiti bibaho muburyo bwimirasire.[2]
Array moderi nuburyo bwayo bwa 3D
Nkuko bigaragara ku gishushanyo cyavuzwe haruguru cyimiterere ya antenne, aho P1 na P2 biri 180 ° bitarangiye, ADS irashobora gukoreshwa mubishushanyo mbonera (bitagereranijwe muriki kiganiro).Mugaburira muburyo butandukanye ibyokurya, ibyagabanijwe kurubu kuri gride imwe irashobora kugaragara, nkuko bigaragara mubisesengura ryamahame.Inzira ziri mumwanya muremure ziri mubyerekezo bitandukanye (guhagarika), naho imigezi mumwanya uhindagurika ni ya amplitude ingana kandi mugice (superposition).
Ikwirakwizwa ryubu ku ntwaro zitandukanye1
Ikwirakwizwa ryubu ku ntwaro zitandukanye 2
Ibyavuzwe haruguru bitanga intangiriro muri antenna ya gride, kandi igashushanya umurongo ukoresheje ibiryo bya microstrip bigaburira kuri 77GHz.Mubyukuri, ukurikije ibisabwa byo kumenya radar, imibare ihagaritse kandi itambitse ya gride irashobora kugabanuka cyangwa kwiyongera kugirango igere kuri antenne kumurongo runaka.Mubyongeyeho, uburebure bwumurongo wa microstrip bwohereza bushobora guhindurwa murusobekerane rwibiryo bitandukanye kugirango ugere kubice bitandukanye.
Igihe cyo kohereza: Mutarama-24-2024
