Yuav ua li cas xaiv high - zaus} zaus} zaus} Kev Deveres nyob rau hauv cov ntawv thov kev sib txuas lus?

, Cov phiaj xwm kev sib raug zoo ntawm cov tub ntxhais cov tsis muaj siab ntawm qhov siab - zaus} zaus thiab kev sib txuas lus
1. Rov qab lub sij hawm rov qab (TRR): Qhov "Ceev Fideh" ntawm Siab- zaus hloov
Kev hloov nrawm nrawm ntawm high - zaus cov ntsiab lus yuav tsum muaj kev hloov pauv ntawm kev hloov pauv thiab txiav cov xeev tsis pub dhau nanoseconds. Noj cov voj voog hloov ntawm 5G puag ncig lub chaw nres tsheb PA (lub zog hluav taws xob) ua piv txwv, yog tias muaj kev hloov pauv ntawm 28GH Lub TRR ntawm Ultra Fast Rov Qab Diode (UFRD) tuaj yeem txo qis li 10ns, thiab qhov sib txawv ntawm cov qhab nia tib yam, sib tham txog 5G NROG NR teeb liab zoo.
Xaiv Kev Xaiv:
Millimeter yoj kev sib txuas lus (saum toj 24GZ): Ua Ntej UFRD lossis Scottky Diode (SBD) nrog TRR tsawg dua lossis sib npaug nrog 5ns;
Sub-6GHz zaus band: ceev rov qab diode (FD) nrog trr =20-50 ns tuaj yeem siv tau;
Avoid using ordinary diodes with Trr>100ns, tshwj tsis yog thov kom tsawg - zaus (<1MHz) scenarios.
2
Lub junction capacitance ntawm diode thiab lub parasitic inductance ntawm daim foos LC resonant Circuit Court, uas tuaj yeem ua rau lub teeb liab kev xav lossis ua kom muaj kev cuam tshuam ntau. Noj cov ka band (26.5-40GHz) cia converter rau kev ua piv txwv, yog tias cJ Los ntawm kev siv schottky diodes nrog cJ<0.5pF, the loss can be controlled within 0.5dB.
Xaiv Kev Xaiv:
RF front-end (>1GHz): Xaiv SBD lossis tus lej PIN nrog CJ<1pF;
Baseband ua (<100MHz): Acceptable FRD of Cj=5-10pF;
Txheeb xyuas cov kev sib txawv ntawm kev tshav dav hlau tsim hluav taws xob muaj peev xwm ntawm cov paib kev ncaj ncees txog peb {{}} didensional siv hluav taws xob (xws li hfss).
3. Forward voltage poob (vf): tus "tseem ceeb qib" rau tsawg {1} {fais fab tsim
Nyob rau hauv cov roj teeb powered iot kev sib txuas lus modules, lub zog kev noj ntawm diodes yuav tshaj 30%. Siv lub zog hloov kwm ntawm NB IOT Module ua ib qho piv txwv, yog tias silicon hloov diode nrog vf=0.7 kev noj haus ntawm 10ma tam sim no yog 7mW; Thaum siv Scottky Diode nrog VF =0.2 v, lub zog siv tuaj yeem txo qis rau 2mw, txuas ntxiv rau lub roj teeb lub neej.
Xaiv Kev Xaiv:
Tsawg tshaj plaws scarmo (<5V): prioritize SBD with Vf<0.4V;
High voltage scenario (>100v): Siv tau FD / UFRD nrog VF =1-2 v;
Them sai sai rau kev ua lag luam - tawm ntawm VF thiab TRR: qee qhov Uliodes yuav txi Trr kev ua tau zoo.
2, kev xaiv xaiv sib txawv rau kev sib txuas lus hais plaub
1. RF Pem Hauv Ntej -}} Xaus: "Teb" ntawm Schottky Diodes
Nyob rau hauv RF front-} xaus ntawm 5g puag ncig yog qhov kev xaiv ntawm lawv cov ultra nrawm hloov nrawm (TRR<3ns) and low junction capacitance (Cj<0.2pF). For example, Infineon's BAT62 series Schottky diodes can achieve a sensitivity of -15dBm and a dynamic range of 10dB in the 28GHz frequency band, meeting 3GPP's requirements for 5G NR receivers.
Cov Kev Siv Raug:
Tov khoom: Siv cov yam ntxwv nonlinear ntawm sbd kom ua tiav hloov dua siab tshiab;
Ntes: extract cov ntaub ntawv ntawm lub hnab ntawv ntawm RF cov cim;
Txwv tsis pub: Tiv thaiv cov suab nrov tsawg tshaj plaws (LNAs) los ntawm cov teeb liab muaj zog.
2. Baseband Kev Ua: Tus "Nqi -}}}} Xaiv cov kev hloov kho sai
Hauv kev teeb tsa teeb liab cov teeb meem, cov kab mob ceev ceev Piv txwv li, Wishi's BRV26E series FRD tuaj yeem tiv taus 1a tam sim no ntawm ib qho kev hloov pauv ntawm 100Ns thiab tus nqi tsuas yog ib qho {}}} ntawm schottky dongs.
Cov Kev Siv Raug Raug
AdC samling thiab tuav: Siv cov kev hloov nrawm nrawm ntawm FRD kom txo txoj kev ntsuas yuam kev;
Qib qib kev hloov dua siab: ua tau zoo sib xyaw ntawm ttl thiab cmos qib;
Kev tiv thaiv hluav taws xob: tiv thaiv kev puas tsuaj rau puag ncig los ntawm kev rov qab txuas lossis overvoltage.
3. Microwave thiab millimeter khiav: "kuj tsis sib haum xeeb yuam kev" ntawm tus pin dodes
Hauv microwave / millimeter verararios xws li hluav taws xob tawm tsam thiab cov matrices ua ke, thiab cov matenates los ua kev hloov kho los ntawm kev tsis ncaj ncees. Piv txwv li, stmicoeltronics 'hsmp - 3890 zaus band, ntsib cov cai ntawm kev xav tau tub rog radar rau kev ua haujlwm siab.
Cov Kev Siv Raug:
Phased Array Radar: Cov nqaj scanning ua tiav los ntawm Pin dodes;
Kev sib txuas lus Satellite: txua cov khoom sib cais siab dua matrix siv tus pin;
Kev sim ntsuas: Ua kev ntsuas hluav taws xob rau vector network analyzers.
3, cov ntxiab ntxiab thiab zam cov tswv yim hauv kev xaiv
1. Pob parasitic tsis: lub "siab- zaus kom zoo dua" ntawm SMD ntim
Tus pin inductance ntawm ntsaws - hauv diodes (xws li {}} Lub Parasitic inductance ntawm SMD cov pob (xws li Sod-123) tsuas yog 1NH, thiab kev ua tsis tau zoo rau 0.6 ω hauv tib zaus kev ua tau zoo.
Zam zam lub tswv yim:
Ua ntej SMD ntim (xws li Cod-123, Sot-23);
Zam txhob siv tus lej PINT ntev
Txo cov parasitic inductance los ntawm PCB teeb tsa kev txhim kho (xws li luv luv taug txhuas ntev thiab nce av vias).
2
Qhov thim rov qab tam sim no (ir) ntawm schottky diodes nce kev nthuav dav nrog qhov kub thiab txias. Piv txwv li, ib qho diode nrog i'{1}} μ A ntawm 25℃yuav nce mus rau 1005 degree, ua rau muaj kev siv hluav taws xob tseem ceeb hauv Circuit Court kev noj. Qhov ntsuas ntsuas ntsuas qhov IRETEFFICITIULIULIULIULIULIULIULIULIULICUY PN Junction Diodes yog tsuas yog 1/10 ntawm qhov ntawd ntawm schottky diodes.
Zam zam lub tswv yim:
PN junction diodes are preferred for high temperature scenarios (>85 degree);
Yog tias cov dailes deshes yuav tsum tau siv, qhov kub ntxhov yuav tsum tau txo los ntawm tshav kub dissipation tsim;
Xaiv cov qauv IR IR (xws li Afineon's Bat62 series, IR<0.1 μ A @ 25 ℃).
3. Muab cov tshuaj tiv thaiv saw phom sij: "txoj hauv kev" ntawm cov hauv zos
Vim yog geopolitical yam tseem ceeb, qee qhov siab txawv teb - zaus li ansson's MBR koob tshiab) tau ntsib txoj kev pheej hmoo ntawm kev cuam tshuam tau muaj kev cuam tshuam. Cov khoom lag luam hauv tsev xws li Suzhou Gude thiab Changdian Technology tau ua tiav cov kev ywj pheej ntawm cov khoom lag luam xws li cov kab mob schottky thiab ntshav. Piv txwv li, Suzhou Gude SS14 Schottky diread tuaj yeem hloov cov qauv txawv teb chaws, thiab lub voj voog khoom siv tau luv rau 4 asthiv.
Zam zam lub tswv yim:
Tsim cov npe ntawm cov cuab yeej hauv tsev raug hloov thiab ua cov kev ntsuas ua tau zoo ib txwm;
Tsim cov kev koom tes xaiv yaam nrog cov tuam ntxhab hauv tsev kom ntseeg tau cov saw hlau ruaj ntseg;
Them sai sai rau kev lag luam txuas thiab kho cov tswv yim xaiv raws sijhawm.
4, Yav Tom Ntej Yav Tom Ntej: "Kev Tshawb Fawb Kev Ntsuas Kev Ntsuas" ntawm Siab- zaus} zaus} zaus} zaus
1. Cov khoom lag luam tshiab: "Kev Kub Siab Loj" Ntawm Silicon Carbide (Sic) Diodes
Cov yam ntxwv hluav taws xob siab (1000 / lwm) thiab siv Bandgap (3.3ev) cov yam ntxwv ntawm cov khoom siv SIC ua rau nws muaj cov khoom zoo tshaj plaws rau siab- zaus} zaus} zaus. Piv txwv li, ROHM's Sct2080Kaum Series Sic Sicchode tuaj yeem tiv thaiv 10MHz, nrog cov khoom siv hluav taws xob rov qab ze ntawm 5G puag ncig nres.
2. Kev sib xyaw: hla kev sib xyaw ua ke ntawm diodes thiab cov mems
Nrog rau kev txhim kho cov tshuab sib txuas lus ntawm miniaturization thiab kev sib xyaw ua ke, kev sib koom ua ke ntawm diodes thiab ntawv tshiab (Micro Piv txwv li, Adi's HMC - c090 surchity part tuaj yeem ua tiav tau 360℃band, nrog lub ntim tsuas yog 1/5 ntawm cov kev daws teeb meem.
3. Txawj Ntse: "Tus Kheej - Kev Saib Muaj nuj nqi" ntawm Diodes
Nyob rau hauv lub neej yav tom ntej, siab - zaus} zaus} zaus yuav sib koom tes kub thiab voltage sensors kom ua tiav tus kheej {1} Kev saib xyuas tus kheej thiab kev hloov kho. Piv txwv li, infineon tab tom txhim kho lub "kev txawj ntse Diode" uas tuaj yeem soj ntsuam kev sib tua kub thiab ua kom haum rau kev txhim kho qhov tseeb, kev txhim kho cov txheej txheem ntseeg tau.