Ni ibihe bintu bigira ingaruka kumikorere ya antene ya GPS?

Ubwiza bwifu ya ceramic nuburyo bwo gucumura bigira ingaruka kumikorere ya antenne ya gps.Ububiko bwa ceramic bukoreshwa ku isoko ahanini ni 25 × 25, 18 × 18, 15 × 15, na 12 × 12.Ninini yubuso bwa ceramic yamashanyarazi, niko dielectric ihoraho, niko ijwi ryumvikana, kandi ningaruka nziza yo kwakira antenne ya GPS.

Igice cya feza hejuru ya antenne ceramic irashobora kugira ingaruka kuri resonant inshuro ya antene.Ikirangantego cyiza cya GPS ceramic chip ni 1575.42MHz, ariko antenne yumurongo wibasiwe cyane nibidukikije, cyane cyane iyo ikusanyirijwe mumashini yose, igipande cya feza kigomba guhinduka.Inshuro ya antenne ya GPS yo kugendana irashobora guhindurwa kugirango igumane imiterere ya antenne ya GPS kuri 1575.42MHz.Kubwibyo, GPS yuzuye imashini ikora igomba gufatanya nuwakoze antenne mugihe uguze antene, kandi igatanga imashini yuzuye yo kugerageza.

Ingingo yo kugaburira igira ingaruka kumikorere ya antenne ya gps
Antenna ya ceramic ikusanya ibimenyetso bya resonant ikoresheje ibiryo hanyuma ikayohereza kumpera yinyuma.Bitewe nimpamvu yo guhuza antenne ihuye, aho ibiryo bigaburira ntabwo biri hagati ya antene, ariko byahinduwe gato muburyo bwa XY.Ubu buryo bwo guhuza inzitizi buroroshye kandi ntabwo bwongera Ikiguzi, kwimuka gusa mu cyerekezo cyumutwe umwe bita antenne imwe ibogamye, kandi kugenda mumashoka yombi byitwa antenne ebyiri.

Kwiyongera k'umuzunguruko bigira ingaruka kumikorere ya antenne ya gps
Imiterere nubuso bwa PCB bitwaye antenne ceramic, bitewe nuburyo imiterere ya GPS yagarutse, mugihe inyuma ari 7cm x 7cm yubutaka budahagarara, imikorere ya antenne irashobora gukorwa cyane.Nubwo bibujijwe kugaragara nuburyo, gerageza kubigumana neza Ubuso nuburyo imiterere ya amplifier birasa.Guhitamo inyungu zumuzunguruko wa amplifier bigomba guhuza ninyungu yinyuma-LNA.GSC 3F ya Sirf isaba ko inyungu zose mbere yo kwinjiza ibimenyetso zitagomba kurenga 29dB, bitabaye ibyo ibimenyetso bya GPS yogukoresha antenna bizaba byuzuye kandi byishimishije.Antenna ya GPS ifite ibipimo bine byingenzi: Kunguka, Umuhengeri uhagaze (VSWR), Urusaku rw urusaku, na Axial Ratio, aho igipimo cya Axial cyibandwaho cyane, kikaba ari igipimo cyerekana inyungu zerekana ibimenyetso byimashini yose mubyerekezo bitandukanye.ikimenyetso cyingenzi cyerekana itandukaniro.Kubera ko satelite ikwirakwizwa mu kirere ku buryo butunguranye, ni ngombwa cyane kwemeza ko antene zifite sensibilité zisa mu mpande zose.Ikigereranyo cya axial kigira ingaruka kumikorere ya antenne ya GPS, isura n'imiterere, umuzenguruko w'imbere ya mashini yose, na EMI.