Lub luag haujlwm twg yuav dailes ua si hauv millimeter txaus kev sib txuas lus?

一, kev ua tau zoo yuav tsum tau ua rau dailes hauv millimeter kev sib txuas lus
Lub siab - cov cim ntawm millimeter flal zaus band (wavelength) uas yuav tsum nruj ntawm diodes:
Tsawg parasitic tsis: lub junction capametance yuav tsum tau tswj hwm hauv qab no 0.1pf kuj yuav tsum qis dua 1 ω kom txo qis siab- zaus poob.
Cov lus teb ceev: Hloov chaw ceev yuav tsum tau mus txog picosecond qib kom yoog raws li kev hloov ceev ntawm high swat - cov cim zaus.
High zog zog muaj peev xwm: Nruam yoj lub zog yuav tsum tau mus txog 10W lossis ntau dua, thiab cov mem tes uas muaj zog ntawm ntau pua watts.
Cov suab nrov tsawg: lub suab nrov nrov xav tau qis dua 5dB kom tau raws li qhov kev xav tau ntawm tus txais.
Kev ntseeg siab: nws yuav tsum hloov mus rau huab cua txias dua los ntawm -55℃rau +125℃thiab muaj hluav taws xob tsis kam.
2, tus tub ntxhais lub luag haujlwm ntawm donges nyob millimeter txaus kev sib txuas lus
1. TOV KHOOM: Tus Kws Txhais Lus "ntawm Conversion Hloov Siab
Hauv millimeter Wlot kev sib txuas lus, cov tshuaj ua tiav cov zaus hloov dua siab los ntawm cov neeg tsis ua haujlwm ntawm dodes. Schottky diodes tau dhau los ua cov nyiam ua kom zoo rau cov mixers vim lawv cov voltitt voltage (0.2-0.4v) thiab teb sai. Piv txwv li, hauv millimeter villimes ailesky diodes sib xyaw millimeter lub teeb liab (xws li 28gzz), yog li txo qhov nyuaj ntawm kev ua tiav. Nws txoj kev hloov dua siab tshiab tuaj yeem qis li 6db, thiab intermodulation distortion yog tsawg dua -60dbc, txhim kho cov cim teeb liab zoo.
2. Limiter: A "Kev Ruaj Ntseg Valve" Rau Cov Teeb Liab Kev Tiv Thaiv
Millimeter Flot Fearable Kev cuam tshuam rau kev cuam tshuam thiab cov mem tes pulitive, thiab cov lim dej tsis pub tshaj tawm hauv cov nonlinear yam ntxwv ntawm dodes. Piv txwv li, hauv SATELLIE Kev Sib Txuas Lus Cov Neeg tau txais, schottky diode txwv cov hluav taws xob tuaj yeem ua kom tiav tshaj li {2}+5} downtream qes nrov nrov nrov tshaj plaws (LNA) los ntawm kev puas tsuaj. Ib qho qauv ntawm millimeter yoj txwv ib plaub theem schottky diODE series band, nrog lub ntxig poob ntawm tsuas 0.5db.
3. Hloov: "Ntse Router" rau kev teeb tsa kev coj ua
Millimeter Wave Tshuab yuav tsum tau hloov mus ntawm cov teeb liab txoj kev, thiab tus lej Pin dhau los ua tus yam ntxwv hloov zoo tshaj plaws vim lawv cov yam ntxwv impollable. Nyob rau millimeter Wave Pased Array Radar, yuav ua tiav nrawm nrawm scanning (micrb ntawm ntau dua 40db thiab qhov kev nkag siab tsawg dua 1dB. Piv txwv li, lub chaw nres tsheb me 28Gz 5G Chaw Chaw Nres Tsheb USES GAN PIN PIN PIN PIN
4. Nquag Ntau Ntau: Tus "Ntau" rau ntau zaus nthuav dav
Millimeter wave communication requires the use of a multiplier to elevate low-frequency signals to high-frequency bands. Variable capacitance diodes utilize their voltage variable capacitance characteristics (Q value>100) kom ua tiav kev ua haujlwm tau txais txiaj ntsig ob npaug. Piv txwv li, nyob rau millimeter nthwv dej oscillators, gaas sib tw npau suav yuav muab tso ua ke 4ghz nrog 30% thiab theem suab nrov hauv qab -120dbc / hz.
5. Lub zog Amplifier: lub cav hluav taws xob "rau teeb liab txhim kho
Kev tiv thaiv diodes thiab gunn dodes yog cov tseem ceeb ntawm millimeter txaus lub zog hluav taws xob kev ua kom tawg. Lub ntsiab lus DIode tuaj yeem tso tawm 10W kev nres yoj txuas ntxiv hauv lub 94gz zaus band, nrog kev ua tau zoo ntawm 20%; Gunn Diodes Ua tiav 5W tawm hauv 35GHz zaus band thiab tau siv dav hauv millimeter wlot anti tsom iav tshuab. Piv txwv li, ib qho tseem ceeb millimeter yoj radareing radar siv tau cov nyiaj 20dbm kom ua tiav cov nyiaj 20dbm, nrog kev kuaj xyuas ntau txog 200 meters.
3, thev naus laus zis evolututions
1. Cov khoom lag luam tshiab: los ntawm silicon kom dav bandgap semiconductors
Tsoos silicon -} banding dicusy yoj tes thiab sic tau dhau los ua lawv txoj kev tuag siab Piv txwv li, gan schottky diodes ua tiav lub peev xwm 5W hluav taws xob ua tiav hauv 140ghz zaus band, uas yog 10 npaug siab dua li Silicon cov khoom siv.
2. Kev sib xyaw: los ntawm txiav tsis txawv txiav tawm rau ib leeg -}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} nti sib koom ua ke
Single chip microwave integrated circuit (MMIC) technology enables on-chip integration of diodes with modules such as LNA and PA. Ib qho 28GZ 5G pem hauv ntej-}}}}} × la saws, thiab LNE ntawm 2MM × 2mm thiab kev siv hluav taws xob poob rau tsuas yog 80mw.
3. Kev txawj ntse: kev txwv tsis pub thiab kev tswj tau zoo
Lub Adaptive Clipped Algorithm raws li kev kawm tshuab tuaj yeem soj ntsuam cov yam ntxwv tseeb ntawm cov cim hauv lub sijhawm thiab siv zog hloov kho qhov chaw nres tsheb. Ib qho qee qhov 6g qauv ua haujlwm txo cov clipping distortion rau ib qho-
4, Kev Tshawb Xyuas Kev Thov
Rooj plaub 1: 5G millimeter yoj chaw nres tsheb PA Kev Tiv Thaiv
Ib qho chaw ntsuas hluav taws xob 5g millimeter yoj chaw nres tsheb tau txais cov phiaj xwm schottky {}}+28 dbm; Qhov thib ob ntawm theem siv tus lej pin dodes kom ua tiav qhov tseeb hais txog kev txwv, thiab cov zis kawg yog qhov ruaj khov ntawm+23 dbm. Cov phiaj xwm no txo ​​cov PA tsis ua tiav ntawm 3 zaug ib hlis rau 0.2 zaug, txuag tau ntau tshaj 2 lab tus nqi kho txhua xyoo.
Rooj plaub 2: millimeter yleow yoj radar - kev cuam tshuam
Ib lub tsheb thauj khoom millimeter ejalital ejerve ib qho kev daws teeb meem kev daws teeb meem los ntawm kev saib xyuas teeb liab teeb liab. Hauv kev cuam tshuam cov xwm txheej muaj zog, cov kab ke qis qis qhov txwv tsis pub dhau los ntawm 10} {} {⁻⁶ thiab txuas lub sijhawm txais txiaj ntsig zoo los ntawm 40%.
https://www.trrsemicon.com/transicic/npn orn6,2 lawb16,2