Kugira ngo habeho guhuza n'inguni ya antene y'umusaruro mushya kandi hagasangirwa imashini ya PCB y'ikinyejana cyashize, imiterere ya antene ikurikira ishobora gukoreshwa kugira ngo antene yongere 14dBi@77GHz n'imikorere y'imirasire ya 3dB_E/H_Beamwidth=40°. Hakoreshejwe plaque ya Rogers 4830, ubugari bwa 0.127mm, Dr=3.25, Df=0.0033.
Imiterere ya antena
Muri iyi shusho, hakoreshwa antene ya microstrip grid. Antene ya microstrip grid array ni ubwoko bwa antene bukozwe n'ibintu bitanga urumuri hamwe n'imirongo yo kohereza ikorwa na mikorosiporo ya N. Ifite imiterere mito, izamuka cyane, yoroshye kuyibyaza umusaruro ndetse n'ibindi byiza. Uburyo bw'ingenzi bwo gupima ni polarization ya linear, isa na antene zisanzwe za microstrip kandi zishobora gutunganywa hakoreshejwe ikoranabuhanga ryo gushushanya. Impedance ya grid, aho feed iherereye, n'imiterere y'aho ihurira hamwe bigena ikwirakwizwa ry'amashanyarazi muri array, kandi imiterere y'imirasire iterwa na geometry ya grid. Ingano imwe ya grid ikoreshwa kugira ngo hamenyekane frequency yo hagati ya antene.
Ibikoresho bya antene za RFMISO:
RM-PA7087-43
RM-PA1075145-32
RM-SWA910-22
RM-PA10145-30
Isesengura ry'amahame
Umuriro unyura mu cyerekezo gihagaze cy'ikintu gikurikira (array element) ufite amplitude ingana n'icyerekezo cyo gusubira inyuma, kandi ubushobozi bw'imirasire ni buke, ibyo bikaba bigira ingaruka nke ku mikorere ya antene. Shyira ubugari bw'akagari l1 kuri kimwe cya kabiri cy'uburebure bw'akagari hanyuma uhindure uburebure bw'akagari (h) kugira ngo ugere ku itandukaniro ry'icyiciro rya 180° hagati ya a0 na b0. Ku mirasire yo ku ruhande rw'ubugari, itandukaniro ry'icyiciro hagati y'ingingo a1 na b1 ni 0°.
Imiterere y'ibice by'urutonde
Imiterere y'ibiryo
Antene zo mu bwoko bwa grid zikoresha imiterere ya coaxial feed, kandi feeder iba ihujwe inyuma ya PCB, bityo feeder igomba gutegurwa binyuze mu byiciro. Mu gutunganya nyabyo, hazabaho ikosa runaka ryo gukora neza, rizagira ingaruka ku mikorere. Kugira ngo huzuzwe amakuru y'icyiciro yavuzwe mu ishusho iri hejuru, hashobora gukoreshwa imiterere y'ihindagurika ry'ifunguro, hamwe n'uburyo bungana bwo gukurura ku byambu bibiri, ariko itandukaniro ry'icyiciro rya 180°.
Imiterere y'ibiryo bya Coaxial [1]
Antene nyinshi za microstrip grid array zikoresha uburyo bwo kugaburira bwa coaxial. Aho antene ya grid array iherereye ahanini zigabanyijemo ubwoko bubiri: uburyo bwo kugaburira hagati (aho kugaburira 1) n'uburyo bwo kugaburira impande (aho kugaburira 2 n'aho kugaburira 3).
Imiterere isanzwe y'urutonde rw'imirongo
Mu gihe cyo gutanga umuvuduko w'inkombe, hari imiraba izenguruka grid yose kuri antene ya grid array, ikaba ari urwego rudahinduka rw'icyerekezo kimwe. Antene ya grid array ishobora gukoreshwa nka antene ya grid wave hamwe na antene ya resonant. Guhitamo frequency ikwiye, aho feed, n'ingano ya grid bituma grid ikora mu nzego zitandukanye: frequency wave (gusohora frequency) na resonance (edge emission). Nk'antene ya grid wave, antene ya grid array ifata imiterere ya feed ya edge-fed, aho uruhande rugufi rwa grid ruruta gato kimwe cya gatatu cy'uburebure bw'umuvuduko w'inkombe n'uruhande rurerure ruri hagati y'uburebure bubiri cyangwa butatu bw'uruhande rugufi. Umuvuduko w'amazi ku ruhande rugufi woherezwa ku rundi ruhande, kandi hari itandukaniro ry'icyiciro hagati y'uruhande rugufi. Antene za grid wave (zidahinduka) zitanga imiraba ihengamye iva mu cyerekezo gisanzwe cy'umurongo wa grid. Icyerekezo cy'umuvuduko kirahinduka bitewe n'umuvuduko kandi gishobora gukoreshwa mu gusesengura frequency. Iyo antene ya grid array ikoreshejwe nk'antene ihindura imiterere y'urumuri, impande ndende n'igufi z'urumuri zigenewe kuba umurambararo umwe uyobora n'igice cy'umurambararo w'urumuri rw ...
Modeli ya Array n'imiterere yayo ya 3D
Nkuko bigaragara ku ishusho iri hejuru y’imiterere ya antene, aho P1 na P2 biri hanze ya 180° mu cyiciro, ADS ishobora gukoreshwa mu gusimbuza igishushanyo (ntibyashushanyijwe muri iyi ngingo). Mu gutanga umuyoboro w’amashanyarazi mu buryo butandukanye, uburyo umuyoboro w’amashanyarazi ukwirakwira ku gice kimwe cy’umuyoboro w’amashanyarazi bushobora kugaragara, nk’uko bigaragara mu isesengura ry’amahame. Imiyoboro y’amashanyarazi iri mu cyerekezo gitandukanye (gusiba), naho imiyoboro y’amashanyarazi iri mu gice cy’umuyoboro w’amashanyarazi ifite amplitude zingana kandi iri mu cyiciro (superposition).
Ikwirakwizwa ry'ubu ku maboko atandukanye1
Ikwirakwizwa ririho ubu ku ntwaro zitandukanye 2
Ibi byavuzwe haruguru bitanga ibisobanuro bigufi kuri antene ya grid, kandi bigashushanya urutonde rw'ibikoresho hakoreshejwe imiterere ya microstrip feed working kuri 77GHz. Mu by'ukuri, hakurikijwe ibisabwa na radar detection, imibare ihagaze n'itambitse ya grid ishobora kugabanuka cyangwa kongerwa kugira ngo haboneke igishushanyo cya antene ku nguni runaka. Byongeye kandi, uburebure bw'umurongo wa microstrip transmission bushobora guhindurwa mu muyoboro w'itumanaho utandukanye kugira ngo haboneke itandukaniro ry'icyiciro rijyanye nabyo.
Igihe cyo kohereza: Mutarama-24-2024
