Kugwiritsa ntchito ma PCB okhwima: Kodi pali malingaliro ena apadera a RF?

Mu positi iyi yabulogu, tisanthula malingalirowa ndikupereka zidziwitso pakupanga ma PCB okhazikika ogwiritsira ntchito ma RF.

Ma Rigid-flex printed circuit boards (PCBs) akudziwika kwambiri m'mapulogalamu osiyanasiyana, kuphatikizapo mauthenga opanda zingwe. Ma PCB apaderawa amaphatikiza kusinthasintha ndi kusasunthika, kuwapanga kukhala abwino kwa zida zomwe zimafunikira kukhazikika kwamakina komanso kufunikira kopindika kapena kupangidwa m'mapangidwe osiyanasiyana.

Komabe, zikafika pakugwiritsa ntchito kwa RF (radio frequency), malingaliro apadera amafunikira kuganiziridwa kuti awonetsetse kuti akugwira ntchito bwino.

1. Kusankha zinthu: Kusankhidwa kwa zida zomwe zimagwiritsidwa ntchito pagulu lokhazikika la PCB kumachita gawo lalikulu pakuchita kwake kwa RF.Pazogwiritsa ntchito RF, ndikofunikira kusankha zida zokhala ndi dielectric otsika komanso zotayika kwambiri. Izi zimathandizira kuchepetsa kutayika kwa ma sign ndi kupotoza, potero kumathandizira magwiridwe antchito onse a RF. Kuphatikiza apo, kusankha gawo loyenera lagawo ndi makulidwe ndikofunikira kuti musunge kuwongolera kwa impedance ndi kukhulupirika kwazizindikiro.

2. Tsatani njira ndi zowongolera: Kutsata koyenera komanso kuwongolera koletsa ndikofunikira pamapulogalamu a RF.Ma siginecha a RF amakhudzidwa kwambiri ndi zolakwika za impedance ndi zowunikira, zomwe zimatha kupangitsa kuti ma sign achepetse komanso kutayika. Kuti zitsimikizidwe kuti zikuyenda bwino, tikulimbikitsidwa kugwiritsa ntchito njira zowongolera za impedance ndikusunga m'lifupi mwake komanso motalikirana. Izi zimathandizira kuti pakhale kusakhazikika panjira yonse yazizindikiro, kuchepetsa kutayika kwazizindikiro ndi kuwunikira.

3. Kuyika pansi ndi kuteteza: Kuyika pansi ndi kutchingira ndikofunikira pakupanga kwa RF kuti muchepetse kusokoneza kwa electromagnetic (EMI) ndi nkhani za crosstalk.Njira zoyenera zoyatsira pansi, monga kugwiritsa ntchito ndege yapansi yodzipereka, zimathandizira kuchepetsa phokoso ndikupereka malo okhazikika azizindikiro za RF. Kuphatikiza apo, kuphatikiza njira zotchinjirizira monga zotchingira zamkuwa ndi zitini zotchingira zitha kupititsa patsogolo kudzipatula kwa ma siginecha a RF kuchokera kumagwero osokoneza akunja.

4. Kayikidwe kagawo: Kuyika kwa chigawo chofunikira ndikofunikira kuti ntchito za RF zichepetse kutsika kwa ma siginecha chifukwa cha kusokera kwapang'onopang'ono ndi ma inductance.Kuyika zigawo zapamwamba kwambiri pafupi ndi wina ndi mzake komanso kutali ndi magwero a phokoso kumathandiza kuchepetsa zotsatira za parasitic capacitance ndi inductance. Kuphatikiza apo, kusunga mawonekedwe a RF mwachidule momwe mungathere ndikuchepetsa kugwiritsa ntchito ma vias kumatha kuchepetsa kutayika kwa ma sign ndikuwonetsetsa kuti RF imagwira ntchito bwino.

5. Kuganizira za kutentha: Mapulogalamu a RF nthawi zambiri amatulutsa kutentha chifukwa cha kusinthasintha kwamphamvu kwambiri komanso kugwiritsa ntchito mphamvu.Kuwongolera kwamafuta ndikofunikira kuti musunge magwiridwe antchito komanso kudalirika kwa mabwalo a RF. Okonza akuyenera kuganizira njira zoyenera zoziziritsira ndi mpweya wabwino kuti athetse kutentha ndikupewa zovuta zilizonse zomwe zingakhudze magwiridwe antchito a RF.

6. Kuyesa ndi Kutsimikizira: Njira zoyesera ndi zovomerezeka ndizofunikira kwambiri pa mapangidwe a RF kuti atsimikizire kuti ntchito yawo ikukwaniritsa zofunikira.Njira zoyesera monga miyeso ya netiweki analyzer, kuyezetsa kosalekeza, ndi kusanthula kukhulupirika kwa ma sign zitha kuthandizira kuzindikira zovuta zilizonse zomwe zingachitike ndikutsimikizira magwiridwe antchito a RF a ma PCB okhazikika.

Powombetsa mkota,kupanga PCB yokhazikika yokhazikika pamapulogalamu a RF kumafuna kulingalira mozama pazinthu zingapo. Kusankha kwazinthu, mayendedwe, kuwongolera, kuyika pansi, kutchingira, kuyika kwazinthu, malingaliro otenthetsera ndi kuyesa zonse ndizinthu zofunika kuziganizira kuti RF igwire bwino ntchito. Potsatira malingaliro apangidwe awa, mainjiniya atha kuwonetsetsa kuphatikizidwa kwa magwiridwe antchito a RF kukhala ma PCB olimba osinthika pazinthu zosiyanasiyana, kuphatikiza zida zolumikizirana opanda zingwe.