Rigid-flex PCBs zvikumbiro: Pane here chaiwo magadzirirwo ekufunga kweRF?

Mune ino blog positi, isu tichaongorora izvi zvinotariswa uye nekupa kumwe nzwisiso mukugadzira yakaoma-flex PCB yeRF application.

Rigid-flex printed circuit boards (PCBs) iri kuramba ichizivikanwa mumhando dzakasiyana-siyana dzekushandisa, kusanganisira wireless communications. Aya akasarudzika maPCB anosanganisa kuchinjika uye kusimba, achiaita akanakira zvishandiso zvinoda zvese kugadzikana kwemichina uye kudiwa kwekukotama kana kuumbwa kuita madhizaini akasiyana.

Nekudaro, kana zvasvika kune RF (redhiyo frequency) application, chaiyo dhizaini kufunga kunoda kutariswa kuti ive nechokwadi chekuita kwakakwana.

1. Kusarudzwa kwezvinhu: Kusarudzwa kwezvinhu zvinoshandiswa mune yakaomesesa-flex PCB chimiro inoita basa rakakosha mukuita kwayo kweRF.Kune RF zvikumbiro, zvakakosha kusarudza zvinhu zvine yakaderera dielectric inogara uye kurasikirwa tangent kukosha. Aya maficha anobatsira kuderedza kurasikirwa kwechiratidzo uye kukanganisa, nekudaro kuvandudza kuita kweRF kwese. Pamusoro pezvo, kusarudza iyo yakakodzera substrate zvinhu uye ukobvu kwakakosha kuchengetedza impedance control uye chiratidzo chekuvimbika.

2. Tevera nzira uye impedance control: Yakakodzera yekuteedzera nzira uye impedance control yakakosha kune RF application.RF masiginecha anotarisisa zvakanyanya kune impedance mismatches uye maratidziro, izvo zvinogona kutungamira kune kusaina kudzikisira uye kurasikirwa. Kuti ive nechokwadi chekuita kwakakwana, zvinokurudzirwa kushandisa yakadzorwa impedance trace routing matekiniki uye kuchengetedza yunifomu yekutsvaga upamhi uye nzvimbo. Izvi zvinobatsira kuchengetedza inopindirana impedance munzira yese yechiratidzo, kuderedza kurasikirwa kwechiratidzo uye kuratidzwa.

3. Kuisa pasi nekudzivirira: Kudzika uye kudzivirira kwakakosha kuRF dhizaini kudzikisa kukanganiswa kwemagetsi (EMI) uye nyaya dzecrosstalk.Maitiro ekuisa pasi akakodzera, akadai sekushandisa ndege yepasi yakatsaurirwa, anobatsira kuderedza ruzha uye nekupa nzvimbo yakagadzikana yereferensi yezviratidzo zveRF. Pamusoro pezvo, kubatanidza nzira dzekudzivirira dzakaita semhangura yekushongedza uye ekudzivirira magaba zvinogona kuwedzera kuwedzera kuparadzaniswa kwemasaini eRF kubva kunze kwekukanganisa masosi.

4. Kuiswa kwechikamu: Strategic component placement yakakosha kune RF application kuderedza kudzika kwechiratidzo kunokonzerwa nekurasika capacitance uye inductance.Kuisa yakakwirira-frequency zvikamu padhuze kune mumwe nemumwe uye kure kubva kune ruzha masosi kunobatsira kuderedza mhedzisiro yeparasitic capacitance uye inductance. Pamusoro pezvo, kuchengeta RF traces ipfupi sezvinobvira uye kuderedza kushandiswa kwevias kunogona kuderedza kurasikirwa kwechiratidzo uye kuve nechokwadi kuita kurinani kweRF.

5. Kufunga kweThermal: Zvikumbiro zveRF zvinowanzogadzira kupisa nekuda kwepamusoro-speed signal processing uye kushandiswa kwesimba.Thermal management yakakosha kuchengetedza kuita uye kuvimbika kweRF maseketi. Vagadziri vanofanirwa kufunga kwakakodzera kutonhora uye nzira dzekufemesa kuti dzinyatso bvisa kupisa uye kudzivirira chero zvingangoitika zvinopisa zvingangokanganisa kushanda kweRF.

6. Kuedzwa uye Kusimbiswa: Kuedza kwakasimba uye maitiro ekusimbisa akakosha kune maRF magadzirirwo kuti ave nechokwadi chekuti kuita kwavo kunosangana nezvinodiwa.Nzira dzekuyedza dzakaita senge network analyzer kuyerwa, impedance kuyedzwa, uye chiratidzo chekuvimbika kwekuongorora zvinogona kubatsira kuona chero zvingangoitika nyaya uye kuona mashandiro eRF emaPCB akaomarara.

Muchidimbu,kugadzira yakaomesesa-flex PCB yeRF maapplication inoda kunyatsotarisisa zvinhu zvakati wandei. Kusarudzwa kwezvinhu, kuronda nzira, impedance control, kugadzika pasi, kudzivirira, kuiswa kwechikamu, kufunga kwekupisa uye kuyedzwa zvese zvinhu zvakakosha zvinofanirwa kugadziriswa kuti uwane yakakwana RF kuita. Nekutevera aya magadzirirwo ekufunga, mainjiniya anogona kuve nechokwadi chekubatanidzwa kwakabudirira kweRF kushanda muakaomesesa-flex PCBs emhando dzakasiyana dzekushandisa, kusanganisira isina waya yekutaurirana michina.