Kuva ku gishushanyo mbonera kugeza ku mikorere myiza: Uburyo bwo gukumira ingaruka z'ubuziranenge mu gukora PCB zikunze kugaragara cyane
Mu nganda za PCB zikoresha uburyo bwa "high frequency", icyiciro cy'igishushanyo ikora nk'ishingiro ry'ubwiza—nk'uko urufatiro rugena imbaraga z'inzu ndende. Guhitamo nabi igishushanyo mbonera bishobora gutuma ibimenyetso bihindagurika, imikorere y'amashanyarazi ihungabana, ndetse n'imbogamizi mu gukora. Injeniyeri mu gushushanya PCB za RF, kumenya kugenzura ubuziranenge mu gihe cyo gushushanya ni ingenzi cyane mu kwemeza imikorere mu bikorwa nka Sitasiyo za 5G, sisitemu za satelite, na itumanaho rya milimetero-umuraba.
Reka turebe uburyo ibyemezo byo gushushanya mu cyiciro cya mbere bigira ingaruka ku igenzura rya impedance, inzira y'ibimenyetso, guhitamo ibikoresho, no kwizerwa mu miterere y'ibikoresho—mu gihe tureba impamvu nyamukuru z'ibibazo by'ubuziranenge.
Igishushanyo mbonera cy'urutonde rw'ibimenyetso: Guhuza impedance na topology y'inzira
1. Igishushanyo mbonera cy'ingufu zidasanzwe1.
Mu miyoboro ifite umurongo munini w'itumanaho, impedance idasanzwe bigomba guhuza neza intego z'igishushanyo (ubusanzwe 50Ω cyangwa 75Ω, hamwe n'ubushobozi bwo kwihanganira ± 5%) kugira ngo birinde isuzuma ry'ikimenyetso no kwangirika. Kutumvikana kw'amajwi ku buryo butunguranye kumeze nk'imiraba y'urusaku igwa ku nkuta zikomeye—ibisubizo bihindura ikimenyetso bigatera kwiyongera igipimo cy'amakosa ya biti kandi byagabanutse uburyo bwo gutanga amakuru.
Kugira ngo ugere ku buryo buhamye bwo guhagarara bisaba:
- Imibare iboneye y'ubugari bw'urutonde n'intera
- Byumvikana neza ubunini bwa dielectric kugenzura
- Ihamye ihindagurika rya dielectric (Dk) ibikoresho (urugero, Rogers laminate)
Urugero, Rogers RO4350B, ifite imikorere ihamye ya DDK hamwe n'uburyo bworoshye bwo gukwirakwiza (Df), ikoreshwa cyane muri PCB za 5G na mmWave kugira ngo imenyekane ko kohereza ikimenyetso cy'igihombo gito.
2. Topology nziza yo gukoresha inzira
Imiterere y'ibice ni nk'igenamigambi ry'umujyi ku bijyanye n'urujya n'uruza rw'ibimenyetso. Imiterere mibi—imiterere miremire cyane, mito, cyangwa ifunze—itanga ikimenyetso igihombo, gutindacyangwa guhinduraUburyo bwinshi bwo kugenda mu muhanda nabwo byongera ibyago byo kuganira ku buryo bunyuranyije n'amategekocyane cyane hagati y'ibimenyetso by'umuvuduko mwinshi byegeranye.
Ibipimo ngenderwaho by'inganda :
- IKURIKIRA (Ijwi rirenga rigera ku mpera)
- FEXT (Uruganiriro rwa kure)
Kugira ngo bigabanye ukwivanga kw'ibintu:
- Kongera intera iri hagati y'ibice
- Ongeraho ibice by'uburinzi bw'ubutaka
- Koresha imiterere y'inyenyeri cyangwa imiyoboro ya daisy hashingiwe ku rujya n'uruza rw'ibimenyetso
Izi ngamba zo gushyiraho imiterere zigabanya EMI, zibungabunga ubusugire bw'amajwi, kandi zikongera ubwizigirwa bw'uruziga rufite frequency yo hejuru.
Guhitamo Ibikoresho no Gutunganya Ibikoresho mu Ntera Ingana
1. Guhuza Substrate kugira ngo habeho imikorere myiza cyane1.
Guhitamo igikwiye ibikoresho bya laminate ni ingenzi mu gucunga uburyo bwo kugabanya ibimenyetso. Ku bijyanye na mmWave (urugero, 24GHz–52GHz), ibikoresho bifite Df yo hasi kwemeza ko nta gutakaza ubushobozi bwo kwanduzanya kw'amajwi.
Urugero:
Rogers RO4350B yatakaje ubwikorezi bw'imodoka kugeza ku gipimo cyo hasi cyane 0.5–1 dB kuri santimetero, byujuje amahame agenga itumanaho rya mmWave.
Ikindi kandi, icy'ingenzi ni uko Gutuza kwa Dr—ihindagurika rigira ingaruka ku kubuza no kwangiza imikorere y'amajwi. Injeniyeri mu by'ubwubatsi zigomba guhitamo ibikoresho bifite Dr iteganyijwe agaciro kabyo mu gihe cy'ubushyuhe n'ubushuhe butandukanye.
2. Ubuhanga bwo Guhuza Ibikoresho
Gushyira hamwe kw'ibice bigira ingaruka ku busugire bw'ibimenyetso no ku guhuza ingufu za elegitoroniki (EMC). Imiterere y’ibikoresho byateguwe neza ishobora:
- Gabanya gutinda k'ikimenyetso
- Gabanya kuganira ku buryo bunyuranyije n'amategeko
- Kunoza uburinzi na EMC
Uburyo bwiza bwo gukora:
- Ahantu imiterere y'amashanyarazi n'ubutaka byegeranye kugira ngo habeho uburinzi bwiza
- Umwanya urwego rw'ibimenyetso kugira ngo hagabanywe inzira zo kohereza amakuru
- Gukomeza intera ihoraho y'urwego kugira ngo habeho ubusugire bw'impedansi
Imiterere mibi yo gushyira hamwe ibintu—urugero, intera ikabije hagati y'ikimenyetso n'ubutaka—ishobora gutuma gutinda kwiyongera, urusaku rw'imirasire, na Ibibazo bya EMI.
Inenge zisanzwe: Impamvu, Ibimenyetso, n'Itandukaniro mu Mikorere
1. Ibibazo by'imikorere y'amashanyarazi
Ibimenyetso:
- Kugabanya ibimenyetso
- Kugoreka kw'imiterere y'umuraba kuri oscilloscopes
- Gutabaza bitera gutakaza amakuru cyangwa ikibazo cy'igikoresho
Impamvu nyamukuru:
- Igenzura ritari ryo ry'impedansi
- Uburyo bwo kunyuramo butanoze
- Guhitamo ibikoresho bidakwiye
- Ubugari butaringaniye cyangwa ubugari bwa dielectric
Icyuho mu mikorere:
PCB zakozwe neza zigaragaza imiraba isukuye kandi ihoraho na kohereza amakuru ku buryo bwihuse. Izikozwe nabi zishobora gutuma Abaretse itumanaho, kwivanga kw'umuyoborocyangwa kwangirika kw'ikimenyetsocyane cyane mu bikorwa by’ingenzi nka sitasiyo za 5G.
2. Inenge mu miterere
Ibimenyetso:
- Ibipimo by'amabati adafite ubushobozi bwo kwihanganira
- Kugonda cyangwa kunama
- Ingano z'imyobo zitari zihagaze neza cyangwa zidahuye
Impamvu nyamukuru:
- Igishushanyo mbonera cy'ubugari bw'urwego kidahuye
- Kunanirwa gusobanura kwihanganira ikoranabuhanga by'ibikoresho byo mu nganda
- Kwirengagiza kwaguka k'ubushyuhe na kwambara imashini zo gucukura
Icyuho mu mikorere:
Imbaho zizewe zihuzwa neza n'ibice n'ibice byazo. Imbaho zifite inenge ziriyongera gutsindwa kw'inyubako, imiyoboro ifunguyecyangwa ibimenyetso byacitse, biganisha ku ivugurura rihenze no kugabanuka kw'icyizere cya sisitemu.
Ibyishimo Byuzuye: Ubwiza bw'Ubwubatsi kuva ku gishushanyo mbonera kugeza ku gukora:
Kuri Ibyishimo Byuzuye Bikungahaye, twizera PCB ifite umurongo wo hejurugutangira neza kera cyane mbere y'uko ikorwa—hamwe n'ubuhanga buhanitse mu gushushanya. Itsinda ryacu rizana: kuri Ibyishimo Byuzuye Bikungahaye ，
- Ubuhanga mu igenamiterere rya impedance n'igenamigambi ryo gukusanya ibintu
- Ubumenyi bwa imiterere y'ibikoresho ku bijyanye na RF na mikoroonde
- Gikomeye ubufatanye hagati y'amatsinda y'abashushanya n'abakora
Dufasha abakiriya gukuraho ingaruka mbi ku rwego rw'igishushanyo mbonera, tugakora ku buryo ibicuruzwa byanyu byubatswe ku buryo bwihuse, bwizewe, kandi bihangana ku isi yose.
