Gunn: ua hauj lwm hauv paus ntsiab lus thiab daim ntawv thov

Gunn diode - ib tug semiconductor, uas yog peev xwm yuav koom nyob rau hauv lub cim ntawm oscillations txawv frequencies. Tus ntaus ntawv electronics khw muag khoom noj muag ntau hom. Tsis tas li ntawd muaj nqis ntsoov teev yog hais tias lawv txawv nyob rau hauv loj. Lub ntsiab tsis muaj lub kev hloov kho koom conduction ntawm qhov tam sim no, voltage, zaus thiab ntau kuj.

Gunn diode ntaus ntawv xws li ib tug pa semiconductor. Standard qauv muaj ib tug nyias txheej arsenide. Tsis tas li ntawd nyob rau hauv lub ntaus ntawv muaj ib tug tshwj xeeb gallium Wednesday thiab hu. Nyob rau hauv arsenide txheej nyob dopants thiab electrodes. Gunn diode raug technology nyob txawv tuam txhab uas muag yuav txawv.

Yuav ua li cas yog nws ua hauj lwm?

Raws li hais ua ntej lawm, muaj ntau hom kev diodes. Lub hauv paus ntsiab lus ntawm cov lag luam ntawm pab kiag li lawm ua rau cov transformation ntawm lub oscillation. Qhov no tshwm sim vim cov kev hloov nyob rau hauv lub zaus ntawm lub Circuit Court. Chiv lub voltage thov kom terminals, qhov twg tus pog arsenide txheej. Tom ntej no, electrodes yog siv ncaj qha. Lub zog ntawm cov magnetic teb yuav tsub kom. Kho qhov muag hu nyob rau hauv lub system yog tsim nyog los ua rau kom tus kuj. Tus txheej txheem ntawm generating cov oscillations yog nqa tawm nyob rau hauv lub dopant. Ua lub saturation tshaj tawm nyob rau hauv cov ntaub ntawv no yog nyob rau hauv lub conductivity ntawm lub electrodes.

Daim ntawv thov Gunn diodes

Diodes yog siv feem nyob rau hauv txawv zaus generators. Tsis tas li ntawd muaj nqis ntsoov teev yog hais tias lawv yog feem ntau ntsia tau rau hauv lub maub los. Tsis tau lawv yuav tsum tau nyob rau hauv transformers. Txawm li cas los, cov pab kiag li lawm yog tsis haum rau tag nrho cov hom ntawm kev hloov kho. Nyob rau hauv thiaj li yuav to taub nyob rau hauv ntau yam nyob rau hauv no, nws yog tsim nyog los xav txog lub hom diodes.

hom ntawm kev hloov kho

Rau hnub tim, faib vaj tse nyob thiab unpackaged pab kiag li lawm. Lawv txawv nyob rau hauv cov nqe lus ntawm conductivity, raws li zoo raws li kev ruaj ntseg. Tsis tas li ntawd muaj nqis ntsoov teev yog tias qhov kev sib cais ntawm cov kev hloov kho nqa tawm tshaj qhov ntev. Muaj diodes 20, 50 thiab 100 microns.

ntim LEDs

Hull semiconductor Gunn diode (yees duab hauv qab no) yog tsim rau cov generators ntawm txawv zaus. Yog hais tias koj ntseeg hais tias cov kws txawj, cov kev hloov kho tau zoo conductivity. Txuas pab kiag li lawm yuav tsum tau ua ntawm hu modulators. Gunn diode fabrication technology nyob rau hauv ntau yam factories tej zaum yuav txawv. Nyob rau hauv tej rooj plaub, siv lub channel adapters.

Tsis tas li ntawd muaj nqis ntsoov teev yog hais tias lub tsev nyob diodes muaj zoo kev ruaj ntseg. Parameter Kev khiav hauj lwm av noo los ntawm lawv yog kwv yees li 55%. Qhov tsawg kawg nkaus permissible kub ntawm -30 degrees. Qauv kuj zoo suited rau condenser transformers. kev kub ceev yog tiav vim lub electrodes ntawm diodes muab.

Lavinnoproletnye unpackaged pab kiag li lawm

Lavinnoproletnye unpackaged Gunn diodes yog siv feem ntau rau controllers. conductivity parameter nyob rau hauv ntau cov qauv yuav pib los ntawm 30 microns. Qhov no yog qhia siab npaum li cas electrodes. Yog hais tias peb xav txog ib tug serial Gunn diode, tsim nws yog zoo li tus linear semiconductor. Thaum ib tug voltage ntawm 12 V overload qhia ntawm cov qauv no yog sib npaug zos rau tsis tsawg tshaj li 55 A.

Txawm li cas los, nyob rau hauv cov ntaub ntawv no, ntau npaum li cas nyob rau hauv lub loj cov kev hloov kho. Nws tseem yog tsim nyog los xav txog lub hom transistor, uas yog siv los txuas rau lub maub los. Nyob rau hauv Feem ntau, lub pab kiag li lawm yuav tsum cob cog rua ntawm ib tug distributor. Nyob rau hauv no qhov teeb meem, ib tug tsis kam ntawm txog 2 ohms. saturation twg yog nyob rau hauv lub xov tooj ntawm dopants. Nws yog ib nqi sau cia hais tias lub hloov yog tsis haum rau cov uas tsis-hu rau maub los. Lub ntsiab qhov teeb meem no cov lus dag nyob rau hauv cov uas tsis muaj kev tsuas xyaus tus nqi.

Devices 20 microns

Heev nrov yog cov Gunn diode. Cov kev khiav hauj lwm hauv paus ntsiab lus ntawm nws yog ua nyob rau hauv lub cim ntawm oscillations. Cov qauv yog zoo rau lub maub los ntawm tus tsav yam. Nws tseem yog nqi sau cia hais tias lub hloov yog zoo tsis zoo tsis kam thaum uas tsis muaj tshav kub losses. Txawm li cas los, lawv muaj tej yam drawbacks.

Ua ntej ntawm tag nrho cov, cov kws txawj nco ntsoov qis tshaj overload voltage ntawm 10 V. Nyob rau hauv tus qauv yog tsis zoo tshaj plaws kev tiv thaiv. Kev khiav hauj lwm Vaum diodes 20 microns yog 40%. Dopants nyob rau hauv cov ntaub ntawv no maj mam nrog lub cathode. electrodes twg yog nyob tsis tau tsuas yog nyob rau hauv lub conductivity, tab sis kuj tsis kam.

Modifications rau 50 microns

Gunn diode (50 microns los qhia rau cov ntaub ntawv) yog tau tso cai ua ntaub ntawv thov rau lub hwj chim generators. Txuas kev hloov kho yuav tsum nqa tawm tsuas yog los ntawm cov coupling capacitors. Yog hais tias peb xav txog qhov Gunn diode 3A716I, lub parameter permissible voltage yog 15 V. Cov kev ruaj ntseg qauv nyob rau hauv cov ntaub ntawv no yog nyob rau hauv lub hom xauv siv nyob rau hauv cov khoom siv. Conductivity nruab nrab yog khaws cia nyob ib ncig ntawm 40 microns. Ib cov kws txawj hais tias semiconductors tsis tau xa qhov zoo tshaj plaws conductivity.

Txawm li cas los, nws yog tsim nyog sau cia hais tias tus txheej txheem ntawm cov cim ntawm oscillations yog heev ceev ceev. Qhov no muab ib theem siab ntawm kev tsuas xyaus arsenide. gallium chaw tshua active txawm nyob rau hauv ntau dua kub. Nyias, nws yog ib qho tseem ceeb kom nco ntsoov tias kev hloov kho rau 50 microns yog tsim rau cov kev cai xws li. Yuav kom txuas lub thov nraum blocks. Nyob rau hauv cov ntaub ntawv no, lub conductivity yog muab ntawm 45 microns. Cov tsis kam los ntawm lub diodes yog sib npaug zos rau ib tug tshaj plaws ntawm 2 ohms. Lawv tau muab yav tom ntej kev tiv thaiv, kev ceev ntawm lub electrode yog khaws cia ntawm ib theem siab. Yog hais tias peb tham txog cov shortcomings ntawm xws systems, nws yog ib qho tseem ceeb yuav tau nco ntsoov hais tias lawv muaj ib tug me me saturation ceev. Qhov no yog kev lom zem ntau vim lub xub ntiag ntawm impurities nyob rau hauv gallium ib puag ncig.

Koj yuav tau hais qhov tseeb hais tias muaj mob yog feem ntau overheated, oscillation tiam txheej txheem yuav ua tau qeeb heev. hloov cov ntxaij lim dej yuav siv tau los daws tau qhov teeb meem hais. Nyob rau hauv thawj qhov chaw lawv ua rau kom cov tsis zoo kuj. lawv kuj yog ib tug zoo cawv rau cov conductivity ntawm lub electrodes.

Tsis zoo li pab kiag li lawm 100 microns

Ntawm cov kaw qauv feem ntau pom muaj nyob rau Gunn diode. Cov kev khiav hauj lwm hauv paus ntsiab lus ntawm cov kev hloov kho yog ua nyob rau hauv lub transformation ntawm lub oscillation. Rau lub hom phiaj no, lub qis txheej yog tshuab txais arsenide. Yog hais tias peb xav txog ib tug pa Gunn diode, nws yog ib tug tsim zoo xws li cov linear semiconductor. Kho qhov muag hu ua raws li conductors.

Yog hais tias peb tham txog kev siv cov kev kho, yog tsim nyog sau cia hais tias lub diodes 100 microns zoo suited rau code controllers. Lawv yog cov tau ua hauj lwm rau ib lub voltage ntawm 13 V. Thaum lub sij hawm no, ib tug overcurrent qhia yuav tsum tsis txhob poob rau hauv qab no 40 A. Cov tsis zoo kuj muaj cov system nyob tsuas yog nyob rau tus nqi ntawm cov cim ntawm deeg. Tsis tas li ntawd muaj nqis ntsoov teev yog hais tias lub diodes 100 microns yog feem ntau siv los tsav lub maub los.

Modifications ntawm generator mus rau 10 GHz

Generator 10 GHz yog tsim diodes kaw. Nyob rau hauv no cov kev hloov kho ntev tsis txawv. Cia li txuas tus ntaus ntawv los ntawm ib tug ib txwm hloov capacitor. Tsis tas li ntawd tsis tsim teb analogs nyob rau hauv uas lub siab tus nqi ntawm qhov tsis zoo kuj. Modifications ntawm generator mus rau 10 GHz yuav tsum tau ua nyob rau hauv ib tug voltage ntawm tsis tsawg tshaj li 10 W.

Tsis tas li ntawd muaj nqis ntsoov teev yog hais tias koj tsis tau txuas los ntawm ib tug kev hloov kho ntawm ib tug pa wired contactor. Nyob rau hauv thawj qhov chaw nws thiaj li conductivity ntawm tus dais. Qhov no txo cov kev ceev ntawm lub electrode. Kho qhov muag contactors yog haum rau lub hom phiaj no wonderfully. Lawv muaj kiag li tsis ntxim rau cov tshav kub hloov lwm lub tsev coefficient. Nyob rau nruab nrab, qhov tsis zoo kuj yog khaws cia ntawm 4 ohms.

generator ntaus ntawv mus rau 15 GHz

Nyob rau hauv lub generators 15 GHz muaj cai siv xwb gated diodes. Raws li ib tug txoj cai, kev twb kev txuas yog ntawm lub console versions capacitors nrog ib tug conductivity ntawm 4 microns. Nyob rau hauv tej rooj plaub, cov kev siv ntawm cov pa contactors. Txawm li cas los, lawv yuav tsum ua hauj lwm rau ib tug voltage ntawm 10 V nrog ib tug muaj kev tiv thaiv nyob rau hauv tag nrho cov generators feem ntau. Kho qhov muag hu diodes muaj siab zoo nkauj sai sai. Kws txawj kuj taw tes rau cov kev kub ceev ntawm lub electrode. Qhov no yog kev lom zem ntau vim lub high conductivity. tshaj tawm saturation thaum cai connector. Yog hais tias peb tham txog cov disadvantages, nws yog tsim nyog los noj mus rau hauv tus account qhov uas tsis muaj chaw pib khiav hauj lwm kub. Permissible ambient av noo yog 55%.

Txheej xwb kev hloov kho nyob rau cov kev ceev ntawm tus txheej txheem ntawm generating oscillations. Nyob rau hauv tej rooj plaub, diodes yog kev cob cog rua ntawm qhib transistors. Nyob rau hauv cov ntaub ntawv no, lub mesh lim siv nyob rau hauv lub Circuit Court. Raws li ib tug tshwm sim, lub conductivity ntawm cov kev txwv yog sib npaug zos rau 40 microns. Thaum lub voltage generator 12 nrog lub diodes yuav tsum tau muab overload kawg 5 A. By txos ceev mas nws txawv electrodes contactor. Tsis tas li ntawd, lub teeb meem yuav pw nyob rau hauv lub transistor. Modifications ntawm tsawg conductivity yog tsis muaj peev xwm ua kom muaj qhov mem tes nyob rau hauv lub system.

Diodes rau generators nyob rau hauv 20 GHz

Rau generators nyob rau hauv 20 GHz yog siv diodes qhib los yog kaw. Nyob rau hauv cov ntaub ntawv no plays ib qho tseem ceeb luag hauj lwm xaiv capacitor. Raws li ib tug txoj cai, yog siv los hloov cov qhov tso zis voltage ntawm 30 V. Txawm li cas los, nws yuav tsum tau paub txog qhov tsis zoo kuj. electrodes ceev liab ho understating Thaum zoo li no parameter. Tsis tas li ntawd, muaj muaj teeb meem nrog conductivity thiab thermal losses.

Overload parameter nyob rau hauv generators feem ntau tsis poob rau hauv qab no 5 N. Ua hloov yog zoo heev tiv thaiv. Thaum zoo li no saturation dopants nyob ntawm cov kuj nyob rau ntawm lub qhov tso zis. Yuav kom txuas los ntawm ib tug connector siv tsav adapters. Nyob rau hauv Feem ntau, transceivers siv. Stabilizers teem kom muaj ib tug ruaj khov voltage. Txawm li cas los, nws yog ib qho tseem ceeb kom nco ntsoov tias diodes ho poob conductivity siv switching transceivers.

Qauv rau ua hauj lwm resonators

Ua hauj lwm zoo resonators yuav tsum tau ceev ceev oscillations generated. Diodes ntawm no hom yog zoo suited rau lub hom phiaj no. Thaum txhim kho lub kev hloov kho yuav tsum tau nyob rau hauv thawj qhov chaw yuav ua li cas los ntsuas qhov tsis zoo kuj. Tsis tas li ntawd tsis txhob hnov qab txog tus kho qhov muag conductivity ntawm cov neeg, uas los ntawm cov kev ceev ntawm lub electrode nyob. Yuav kom nce lub peev xwm ntawm tus ntaus ntawv yog pom zoo capacitive transceivers.

Parameter voltage nyob rau hauv qhov teeb meem no yuav mus txog cov kev txwv ntawm 30 V. Cov diode overload nyob nkaus rau lub conductivity ntawm lub capacitor. Tsis tas li ntawd muaj nqis ntsoov teev yog hais tias thaum koj nruab hloov tsim nyog los siv cov ntxaij lim dej rau cov phiaj. Ua ntej ntawm tag nrho lawv kom daws tau qhov teeb meem ntawm gallium puag ncig tiv thaiv. Lawv kuj muaj ib tug zoo ntxim rau cov dopants.

Diodes nyob rau hauv pulsed resonators

Tshwj xeeb yog suited resonators rau switching lub diodes 20 thiab 50 microns. Thaum txuas pab kiag li lawm siv coded adapters. Nyob rau hauv tej rooj plaub, connectors yog siv. Modifications conductivity nyob rau hauv lub saturation tus nqi thiab cov theem ntawm tsis zoo kuj. Yog hais tias peb xav txog daim duab rau tus tsav xws li, nws yog sib npaug zos rau cov kev txwv voltage ntawm 40 V. Cov kev ruaj ntseg yog li khaws cia ntawm ib theem siab. Ib tug disadvantage ntawm xws li ib tug system yog suav tias yog tsis muaj conductivity ntawm tsawg zaus, thiab lub overload sib npaug xwb 4 A.

saturation tus nqi yog khaws cia ntawm ib theem siab, tab sis nws tiav tseem ceeb thaum tshav kub kub tsis tau. Yog hais tias peb xav txog lub tswvyim mus rau lub teb-nyhuv transistors, ob tug cov ntxaij lim dej yuav siv muaj. Tam sim ntawd Gunn diode 20 microns yog tsim. Nws yuav tsum tau ntsia rau lub adapter. Nyob rau hauv cov ntaub ntawv no, cov kev txwv voltage yog kwv yees li 10 V rau qhov tsis zoo kuj muaj 4 ohms.

Daim ntawv thov pab kiag li lawm ntawm tsav controllers

Rau tsav controllers haum Gunn diode 100 microns. Txuas kev hloov kho nqa tawm, feem ntau yog los ntawm transistors. Cov pab kiag li lawm zoo conductivity thiab muaj peev xwm ua hauj lwm nrog daim phiaj ntxaij lim dej. Lawv yog cov tsis ntshai ntawm lub tshav kub poob thiab cov voltage yog khaws cia nyob rau hauv 30 V. Rau qauv muab zoo ruaj ntseg thiab kev kub ceev ntawm lub electrodes. Ib cov kws txawj kuj txawj siv lub diodes nyob rau hauv circuits nrog comparators, uas yog kev cob cog rua ntawm ob tug adapters. Regulators yog haum rau tej tshuab linear hom.

Qauv rau zaus controllers

Nyob rau hauv thiaj li yuav xyuas kom meej kom zoo lag luam ntawm lub zaus xws li yuav siv tau xwb Gunn diode gated. Nyob rau hauv no cov kev hloov kho ntawm qhov ntev tej zaum yuav 20 los yog 50 microns. Nyob rau hauv cov ntaub ntawv no, ntau npaum li cas nyob rau hauv lub conductivity ntawm lub maub los ncaj qha.

Yog hais tias peb xav txog daim duab ntawm ib daim teb capacitor, ces muaj yog ib tug tsis zoo ua hauj ntawm lub ncov yog sib npaug zos rau 4 ohms. Thaum lub voltage 10 V ntaus ntawv ua hauj lwm stably thiab exhibits ib siab electron tshaj tawm. Saturation nyob rau cov kev ruaj ntseg hloov hu. Tsis tas li ntawd, thaum kev cob cog rua diodes nws yog ib qho tseem ceeb them sai sai mus rau lub conductivity nyob rau hauv lub Circuit Court ntawm lub ntsia.

Diodes nyob rau hauv latitude controllers

Rau latitudinal controllers haum kev hloov kho rau 50 microns. Muaj peev xwm txuas tus ntaus ntawv los ntawm lub transceiver. Txawm li cas los, cov adapters yog xaiv nyob rau hauv ob terminals. Nyob rau hauv xws li ib tug teeb meem no, yog muab lub conductivity ntawm 55 microns ntawm ib tug voltage ntawm 12 V. By txuas lub kev hloov kho yog ib qho tseem ceeb rau kev ntsuam xyuas qhov tsis zoo kuj. Tsis tas li ntawd tsom rua lub contactor kauj. Maximum permissible overload Circuit Court 3 yog Nu. Tsuas yog relay cov ntxaij lim dej yuav siv los txhim khu cov kev ruaj ntseg ntawm cov kev hloov kho. Thaum lub maub los yog hloov zis voltage pib tsum tsis pub tshaj 15 V.