1, Cov yam ntxwv tseem ceeb ntawm microwave RF Circuit Courner Board
Microwave RF PCB yog tsim tshwj xeeb rausiab ntau zausKev sib kis teeb liab (feem ntau yog hais txog 300MHz ~ 300GHz), thiab nws cov yam ntxwv tseem ceeb taw qhia txog kev txwv kev ua tau zoo ntawm kev sib txuas lus, Radars, Satellites, thiab lwm yam khoom siv.
1. Txo cov khoom lag luam uas tsis tshua muaj peev xwm ua rau muaj cov ntsiab lus zoo
Tsawg dielectric poob (DF): QUB poob xov xwm xws li ptfe (xws li DF tseem ceeb li 0. {}}}}. {}} teeb liab zog hauv substrate.
Cov Kev Poob Haujlwm qis: Cov txheej txheem kev kho kom haum (xws li cov nyiaj thiab cov nyiaj kub loj) Txhim Kho Tooj Liab Nyiaj Rayness (RA<0.5 μ m) and suppress signal attenuation caused by skin effect.
Nab: 5G Base Chaw nres tsheb chaw nres tsheb 28ghz zaus band kav hlau kav hlau kav hlau kav hlau kav hlau pawg thawj coj saib<0.002 and copper foil roughness Ra ≤ 0.3 μ m, otherwise the signal transmission distance will be significantly shortened.
2. Kho kom haum tswj thiab ruaj khov
Kev sib xws ntawm dielectric tas li (DK Aunkion ntawm cov thawj coj yuav tsum tau tswj hwm hauv cov pob zeb me me thiab cov kab sib tsoo (ib txwm muaj 50 ω).
Txheej Txheem Multination Ua: Los ntawm nruj me ntsis tswj cov lamination kub, thiab lub sijhawm, kev hloov kho ntawm cov txheej txheem direction
Cov ntsiab lus tsim: Siv cov tshuab hluav taws xob simulation (xws li hfss) los ua qauv, sib txuas nrog Vector networker (VNA) los ntsuas cov tsis muaj, thiab kho cov yuam kev.
3. Zoo electromagnetic sib xyaw (EMI / EMC)
Kev Tsim Av Hauv Av Khoom: Cov Qauv Ntau Txheej Tau "Cov Qauv Txheej Txheem Av" Cov Qauv Txheej Txheem, Cov Qauv Ntawm Cov Crostsalk los ntawm lub laj kab laj kab.
Revelance supression: Txhim kho CIPCuit Coapout kom tsis txhob muaj kab kis tau ntev λ / 4 wavelength (uas tau yooj yim ua rau sawv ntsug revelonance).
Cov teeb meem raug: Tsis raug cai los ntawm-qhov tsim hauv millimeter txaus tshuaj radar tshuab los tshem tawm cov tshuab hluav taws xob ntxiv, xav kom tshem tawm cov cwj mem tooj liab ntau dhau.
4. Kev kub siab thiab cua sov
Tsawg coefficient ntawm thermal expansion (CTE): CTE ntawm Ceramic substrates (xws li Al ₂ O3) yog kwv yees li tooj liab) kom tsis txhob ntsia hlau tawg.
Thaum tshav kub disspation tsim: embedded tooj liab npib thiab hlau substrate (xws li txhuas substrate) yog siv los ua kom nrawm nrawm nrawm los ntawm RF fais fab.
Daim Ntawv Thov Qho: Hauv lub zog amplifier (PA) Modules (PA) modules, gan li muaj cov txheej txheem cua sov uas yuav tsum tau txuas los ntawm thermal vias rau tshav kub dissipation.
2, Ua haujlwm ua haujlwm ntawm microwaveRF Circuit Courner Board
Cov ntsiab lus ntawm microwave RF Circuite yog cov lus tshaj tawm ntawm Electromagnetic nthwv dej hloov chaw thiab siv hluav taws xob ua kom zoo dua tshiab.
1. Kis nrhiav hom ntawm cov ntsiab lus siab tshaj plaws
Microwave Kis Kab Lub Tswv Yim
Microstrip: Cov paib qhia npe sab saum toj + hauv av txheej, haum rau cov qauv hauv qab no 10GHz, tus nqi qis tab sis muaj nqi hluav taws xob tsis tshua muaj.
Stripline: Daim paib kab yog embedded ntawm ob txheej ntawm av av, nrog kev tiv thaiv zoo tab sis siab ua haujlwm nyuaj.
Coplanar waveguide (CPW): The signal line and ground plane are in the same plane, suitable for integrated design in the millimeter wave frequency band (>30Qhia).
2. Kev koom tes ntawm cov khoom siv nquag thiab ua haujlwm
Cov Cheeb Tsam Caij Hla:
Lim: Siv LC resonance lub ntsiab cai kom lim tawm tawm ntawm lub suab nrov nrov, yuav tsum zam kev faib cov nqi txuas ntxiv hluav taws xob.
Fais fab divider: nws ua tiav tau sib luag ntawm cov cim los ntawm kev hloov pauv kev hloov pauv, xav tau theem sib npaug ua yuam kev<1 °.
Cheebtsam:
RF chips (xws li mMICED)
Cov ntaub ntawv xeem tiag: Hauv Ku Band (1218GHz) tau txais module, lub taub lim txoj cai poob xav tau<0.5dB, and the standing wave ratio (VSWR) needs to be<1.5:1.
3. Kev tswj hwm thiab electromagnetic tswj
Cov av dav hlau ruaj khov: qhov loj-thaj chaw txuas ntxiv voj voog, thiab cov hlaws nplaum tsawg yog siv rau kev rho tawm thaum muab cov av sib faib / digital.
Electromagnetic Field Ciam ciam Ciamteb ciaj ciam txwv: Txwv tsis txhob muaj hluav taws xob sib txawv los ntawm kev thaiv cov kaus poom lossis ntawm daim npav txiav luam yeeb.
Cov Ntaub Ntawv Ua Haujlwm: Lub Tebchaws Larellite Kev Sib Txuas Lus Sib Txawv Los Ntawm Lub Kav Hlau Kev Ua Tau Zoo, uas tau kho ib ntus siv cov hlau dhia ib ntus siv cov hlau thiab rov qab ua ib txwm muaj.