Kapangidwe ka RF PCB kuchokera ku Chiphunzitso kupita ku Kuchita: Buku Lophunzitsira Uinjiniya Lochokera kwa Rich Full Joy

Mu makampani a zamagetsi omwe akusintha mofulumira masiku ano, Kapangidwe ka PCB ka RF (Radio Frequency)imagwira ntchito yofunika kwambiri pothandiza kuti ntchito zizichitika mwachangu komanso pafupipafupi monga Kulankhulana kwa 5G, IoT, ndegendi radar yamagalimotoMonga kampani yokhala ndi zaka zambiri zogwira ntchito mu uinjiniya wa PCB wapamwamba kwambiri, Chimwemwe Chochulukaikunyadira kugawana nzeru za akatswiri opanga ma PCB omwe akufuna kuthana ndi mavuto a kapangidwe ka bolodi la RF.

Zizindikiro za RF nthawi zambiri zimagwira ntchito mu Ma 300MHz mpaka 300GHz osiyanasiyana, ndipo kupanga PCB ya ma frequency otere kumabweretsa mavuto apadera omwe sapezeka m'makina othamanga pang'ono. Izi zikuphatikizapo umphumphu wa chizindikiro, Kuletsa kwa EMI, magwiridwe antchito a zinthu zamagetsindi kufananiza kolondola kwa impedanceMu bukuli lofotokoza bwino, tifufuza njira zabwino kwambiri zopangira ma PCB odalirika komanso ogwira ntchito bwino a RF.

Kumvetsetsa ma RF PCB

An RF PCBndi bolodi losindikizidwa lomwe limagwira ntchito pa ma frequency a wailesi, nthawi zambiri limaphatikiza zonse ziwiri digitondi zigawo za analogikupanga chomwe chimadziwika kuti bolodi la zizindikiro zosakanikiranaVuto pano lili pakuwongolera kuyanjana pakati pa mitundu ya zizindikiro, chifukwa kapangidwe kosayenera kangayambitse kusokoneza kwakukulu ndi mavuto owunikira.

Kutengera kusamalira mphamvu, Ma PCB a RF akhoza kugawidwa m'magulu awa:

• Ma PCB a RF otsika mphamvu, zomwe zimaika patsogolo phokoso lochepa komanso kukhudzidwa kwa zizindikiro
• Ma PCB amphamvu kwambiri a RF, zomwe zimafuna kapangidwe kamphamvu ka kutentha ndi kukhazikika kwa mphamvu

Gulu lililonse limafuna zinthu zapadera zomwe ziyenera kuganiziridwa panthawi yokonza.

Malangizo Ofunika Kwambiri Opangira RF PCB

1, Kusankha Zinthu: Maziko a RF Performance

Kusankha zinthu za substrate kumakhudza mwachindunji umphumphu wa chizindikiro, kukhazikika kwa kutenthandi kusasinthasintha kwa impedancepa ma frequency osiyanasiyana. Ma parameter ofunikira ndi awa:

Kuchuluka kwa Kutentha (CTE)

CTE iyenera kugwirizana ndi zinthu zoyikidwa. Kuchuluka kwa kukulitsa kosagwirizana kungayambitse ming'alu yolumikizirana kapena kugawanitsa kwa trace—makamaka mu Ma PCB a RF okhala ndi zigawo zambiriIzi ndizofunikira kwambiri pamakampani odalirika kwambiri monga ndegendi telefoni.

Dielectric Constant (Dk)

Dr amafotokoza momwe zizindikiro zimafalikira mofulumira. Machitidwe a RF nthawi zambiri amafuna zipangizo za Drk zotsika komanso zokhazikikakuti muwongolere bwino impedance komanso kuti muchepetse kuwunikira. 5G ndi mafunde a millimetermapulogalamu, zipangizo zapansi za Drk monga RO4350Bkapena RT/duroidndi omwe amakondedwa.

Chinthu Choyambitsa Kutaya (Df)

Df imasonyeza kutayika kwa dielectric. Mu transmission ya ma frequency apamwamba, a Df yotsikandikofunikira kwambiri kuti muchepetse kuchepa kwa chizindikiro ndikusunga umphumphu wa mafunde oyera patali.

Malangizo a Akatswiri:Zipangizo monga RO4000, RO3000ndi Ma laminate opangidwa ndi PTFENdi miyeso yamakampani ya ma RF PCB. Ma foil osalala a mkuwa okhala ndi kuuma kochepa amathandizanso kuchepetsa kutayika kwa chizindikiro kuchokera ku zotsatira za khungu.

2、Kapangidwe Koyenera ka Zigawo Zokhala ndi Magawo

Kuyika zinthu mu layer stackup kumakhudza kuletsa kwa EMI, kukhazikika kwa impedance, komanso kugwira ntchito bwino kwa ma signal routing.

Kupatula Malo a Zigawo

Zigawo za RF ziyenera kukhala ndi malo otalikirana malinga ndi ntchito yawo komanso mphamvu zawo. Sungani malo okwanira pakati pa zipangizo zamphamvu kwambirindi mabwalo a analogi osavuta kumvakuchepetsa kusokonezana kwa zinthu ziwiri ndikuwongolera kutayika kwa kutentha.

Ma Traces Osiyana

Pewani zizindikiro zoyandama kapena zopatukana, zomwe zimagwira ntchito ngati ma antenna osalamulirikaNgati sizingapeweke, zichepetseni pogwiritsa ntchito zotchingira pansi kapena zowongolera kutalika.

Kukhazikitsa Gawo Lalikulu

Ikani zigawozo molingana ndi kuyenda kwa chizindikirondi magulu ogwira ntchito. Zolumikizira zazifupi zimachepetsa kufalikira kwa ma parasitic ndi kutayika kwa chizindikiro. Perekani malo okwanira kuti ma probe oyesera agwiritsidwe ntchito ndikupezanso mwayi wolowera.

Kuwerengera ndi Kukonza Zigawo

Gwiritsani ntchito gawo lapamwamba poyendetsa ma RF, magawo apansi pakati, ndi magawo apansi kuti mupeze ma track a digito kapena otsika liwiro. njira zobwerera pansi zolimbakuchepetsa kulowerera kwa lupu ndi EMI.

Kuchotsa Mphamvu

IC iliyonse imafuna kugawanitsa kwapafupikuti musefe phokoso la mphamvu. Ikani ma capacitor olekanitsa pafupi ndi ma power pin, pogwiritsa ntchito ma values ​​oyenera a ma frequency ndi impedance a IC.

3, Kuwongolera kwa Chizindikiro cha RF Molondola

Kutumiza mauthenga a RF ndi sayansi. Cholinga chake ndi kusunga impedance yolamulidwandi kuchepa kochepa kwa chizindikiro.

Sungani Zotsatira Zachidule

Ma traces afupiafupi amafanana ndi kuchepa kwa kuchepekedwa ndi kuwunikira. Pewani kuzungulira kosafunikira panjira yolowera.

Pewani Kuyenda Motsatizana

Pewani ma RF ofanana ndi ma RF osakhala ma RF. Magawo olumikizana amatsogolera ku kulankhulana mozunguliraNgati simungapewe, onjezani mtunda pakati pa malowo ndikugwiritsa ntchito zotchingira pansi.

Fotokozani Mfundo Zoyesera

Malo oyesera ayenera kukhala zolekanitsidwa ndi mizere yazizindikirokuti mupewe kusokonezeka kwa chizindikiro panthawi yotsimikizira.

Ma Bend Anzeru

Makona a RF ayenera kukhala wozungulira kapena wopindika, osati wakuthwa. Sungani utali wozungulira wochepera M'lifupi mwa 2x tracekuti aletse kuwunikira kwa chizindikiro.

Ubwino wa Rich Full Joy mu RF PCB Design

Ndi kutha Zaka 20 zaukadaulo, Rich Full Joy imabweretsa:

• Ukatswiri mu Ma RF multilayer board stackups
• Zatsimikiziridwa kulamulira kwa impedancekuti zigwire ntchito pafupipafupi
• Luso la kukonza zinthu zotsika mtengo
• Zodalirika DFM (Kapangidwe ka Kupanga)ndemanga kuti athetse zolakwika pakupanga msanga
• Thandizo lapadera la mapulogalamu mu 5G, rada, satcomndi ndege

Kaya mukupanga antenna module yopapatiza kwambiri kapena chosinthira ma satellite chofunikira kwambiri, timapereka Mayankho a RF PCB okonzedwa bwinoyothandizidwa ndi miyezo yapadziko lonse lapansi yamakampani.

Ma Webinars Omwe Akubwera mu Epulo: Tsegulani Luso Lanu la Kapangidwe ka RF PCB

Kodi mwakonzeka kupita patsogolo kwambiri pakuwongolera khalidwe la kupanga RF? Lowani nawo Rich Full Joy ndi akatswiri otsogola mu Epulo uno:

Epulo 14 – 14:00
Multilayer RF PCB Lamination: Magawo Ofunika & Kuwongolera Zokolola

• Chitsanzo cha lamination cha kutentha katatu, kuthamanga katatu
• Chepetsani kulolerana kwa impedance kuchokera ± 10% mpaka ± 5%
• Onjezani zokolola za lamination ya RF PCB ya aerospace ndi 32%

Epulo 16 – 16:00
Njira Zomaliza Pamwamba pa Ma PCB a RF: Pezani Kutha Kwambiri Kugulitsa

• Matrix yoyerekeza: ENIG vs. OSP vs. Immersion Silver
• Kusanthula chifukwa chachikulu cha kulephera kwa soldering m'mabwalo a telecom
• Magawo omalizitsa pamwamba pa zinthu okonzedwa bwino kuti agwiritsidwe ntchito modalirika kwambiri

 Epulo 18 – 10:00
Kumvetsetsa Miyezo ya RF PCB: Kukwaniritsa Zofunikira Kwambiri Zamakampani

• Kusanthula kwazithunzi kwa malangizo a IPC-2223 omwe amaperekedwa pafupipafupi
• Kuwongolera molondola kukula pamlingo wa mamilimita-mafunde
• Malangizo othandiza pakutsatira malamulo a RoHS 3.1 mu RF PCBs

Epulo 21 – 14:00
Kulamulira Ubwino wa RF PCB kuchokera ku Kapangidwe ka Magwero

• Mndandanda wa ma DFM wa mfundo 28
• Kuyeserera kwa umphumphu wa chizindikiro monga fyuluta isanapangidwe
• Kafukufuku: Kutulutsidwa kwa PCB ya 5G base station yopanda chilema

Lowani nawo mu Gulu:

1. Tsatirani Rich Full Joy kuti mudziwe zambiri za nthawi yeniyeni
2. Perekani ndemanga pa nkhawa yanu yayikulu yokhudza kapangidwe ka RF
3. Tumizaninso & tag mainjiniya atatu kuti mutsegule zathu zapadera Pepala Loyera la RF PCB Lowongolera Ubwino