FMUSER 50Ω Khoom-state Kav hlau txais xov Tuning Unit rau 530-1,700 kHz AM Nruab Nrab Wave Transmitter Chaw Nres Tsheb

Quick Saib

1. Tech Spec ntawm FMUSER Kav hlau txais xov Tuning Unit
2. Cov yam ntxwv tseem ceeb ntawm FMUSER Antenna Tuning Unit
3. Qhov twg Yuav Qhov Zoo Tshaj AM Tuning Unit?
4. Antenna Tuning Unit: Nws yog dab tsi thiab nws ua haujlwm li cas?
5. Dab tsi yog Cov Qauv Tseem Ceeb ntawm Antenna Tuning Unit
6. Vim li cas ATU tseem ceeb rau kev tshaj tawm xov xwm nruab nrab Wave?

 

Tech Spec ntawm FMUSER Kav hlau txais xov Tuning Unit

 

Cov ntsiab lus uas	specs
Kev khiav hauj lwm zaus	531-1700 kHz nruab nrab yoj (MW) puv band
Transmitter Max. Lub zog nkag	1KW / 5KW / 50KW (raws li koj xav tau)
Kev them nyiaj yug bandwidth	25 kHz-30 kHz (ib nrab fais fab bandwidth)
Hloov siv bandwidth	30 kHz-80 kHz
Nres bandwidth	≥100 kHz
Kav hlau txais xov sawv yoj piv	nyob rau hauv ± 5 kHz≤1.05, nyob rau hauv ± 10 kHz≤1.3
Kev thaiv thaiv	Thaum qhov zaus yog 100 kHz deb ntawm qhov chaw zaus, qhov attenuation yog 25 dB
Xob laim tiv thaiv	lub zog seem ntawm xob laim yog tsawg dua 200 mJ

 

Nug kom hais nqe lus

 

Cov yam ntxwv tseem ceeb ntawm FMUSER Antenna Tuning Unit

• Lub kav hlau txais xov tuning chav tsev tuaj yeem siv tau rau ib tus pej thuam ib zaus, dual zaus, thiab triple zaus, nrog rau nruab nrab yoj transmitters ntawm ntau qib zog.
• Tshwj xeeb electromagnetic coupling cais kev tiv thaiv xob laim thev naus laus zis, ntxiv rau cov tsoos hauv av inductance xob laim tiv thaiv, kev tiv thaiv hluav taws xob tiv thaiv hluav taws xob, thiab graphite tso tawm spherical magnetic nplhaib tiv thaiv xob laim, theem kawg ntawm lub network kuj ntxiv electromagnetic coupling cais kev tiv thaiv xob laim, vim nws tsis yog cov khoom siv ib txwm siv Cov kev sib cuag ncaj qha thiab cov yam ntxwv ntawm kev xaiv zaus ua rau nws ua tsis tau rau lub zog ntawm xob laim kom ncaj qha mus rau lub transmitter los ntawm lub kav hlau txais xov network. Kev tsim ntawm cov khoom siv network no tau txais kev sib xyaw ua ke ntawm cov qauv tsim network thiab cov tshuab hluav taws xob sib txuas sib txuas, suav nrog cov qauv L-hom, π-hom tsim, thiab cov qauv tsim kev tiv thaiv hluav taws xob, nrog rau kev sib cais ntawm electromagnetic coupling tshiab. Txij li xyoo 2014, nws tau siv dav hauv cov ntawv thov thiab tau txais txiaj ntsig zoo los ntawm cov neeg siv khoom. Txog tam sim no, tseem tsis tau muaj lub tshuab xa hluav taws xob tsis ua haujlwm los ntawm xob laim, lossis ib lub tshuab cua txias tsis ua haujlwm.
• Siv ib leeg-chip tswj, cov kauj ruam tus nqi ntawm kev hloov kho inductance tuaj yeem yog 0.1uH, thiab kev hloov kho precision siab.
• Kev xa xov wireless, thiab "control box" thiab "tuning box" yog tsim los nrog kev tiv thaiv xob laim kom ua kom muaj kev ntseeg siab ntawm kev tswj hwm.
• Qhov kev hloov kho tau ntawm cov kauj yog ze rau 10uH, thiab qhov sib txawv ntawm qhov sib txuam thiab kev txiav txim siab kuj yog qhov dav heev (qhov kev sim VSWR hauv 1.5 tuaj yeem ua tau zoo sib xws rau 50Ω).
• Nruab nrog kev tiv thaiv kev kho ntau dhau, tsis tas yuav txhawj xeeb txog kev puas tsuaj rau lub kauj los ntawm kev ua haujlwm tsis raug.

  

FMUSER: Qhov Chaw Tsim Khoom Zoo Tshaj Plaws ntawm AM Antenna Tuning Unit los ntawm Tuam Tshoj

 

 

FMUSER yog ib lub tuam txhab loj tshaj plaws AM tshaj tawm cov khoom lag luam thiab cov muag khoom hauv Suav teb. Peb muab kev tshaj lij AM (LW / SW / MW) cov khoom siv tshaj tawm thiab ua tiav cov kev daws teeb meem rau AM tshaj tawm cov chaw nres tsheb, suav nrog kev muag khoom ntawm nruab nrab nthwv dej transmitters, 50Ω MW kav hlau txais xov tuning chav tsev (lub zog tawm tswv yim nyob ntawm koj lub zog AM transmitter), thiab ntau lub siab- zoo AM tshaj tawm cov kav hlau txais xov, dummy loads thiab lwm yam khoom siv tshaj lij. 

 

Saib peb 10kW AM transmitter ntawm qhov chaw tsim kho video series hauv Cabanatuan, Philippines:

 

 

Peb tuaj yeem muab cov tsev prefabricated customized rau high-power antennas txuam units. Cov tsev no siv cov txheej txheem installation ceev, uas tuaj yeem rhuav tshem tag nrho rau kev thauj mus los. Lawv yog foam insulated, muaj RF shielding, tuaj yeem nruab nrog lub tshuab hluav taws xob ua tiav raws li cov qauv hauv zos, thiab tuaj yeem suav nrog cov cua sov / cua txias.

 

Kev siv cov tsev no ua rau lub sijhawm ua haujlwm ntawm qhov chaw. Lub tsev tau teeb tsa thiab sim hauv FMUSER Hoobkas thiab cov kav hlau txais xov tuning system module tau teeb tsa. Tom qab ntawd, tag nrho cov kav hlau txais xov tuning chav tsev yog cim thiab kaw kom nrawm sib dhos ntawm tus neeg siv khoom qhov chaw ua ntej ntim khoom xa tuaj.

 

Koj tuaj yeem muab ntau yam khoom siv thiab kev xaiv rau peb lub kav hlau txais xov sib txuas, lossis hloov kho lossis kho koj qhov system uas twb muaj lawm. Cov no suav nrog mica thiab lub tshuab nqus tsev capacitors, cov khoom siv hluav taws xob siab, RF inductors thiab coils, RF ammeters, ntauwd insulators, teeb pom kev zoo transformers, teeb pom kev zoo chokes, thiab txee.

 

Cov kev pabcuam raug muab:

 

• Kev Ntsuam Xyuas Qhov Chaw thiab Kev Tshawb Fawb
• Kav hlau txais xov Thiab Rf System Tsim
• project Management
• Kev saib xyuas kev txhim kho
• Troubleshooting Thiab Maintenance
• Kev Tswj Xyuas Kev Txij Nkawm
• Kav hlau txais xov System Test
• Electromagnetic Hazard Test

 

Nug cov lus hais hnub no thiab cia peb pab koj tsim koj lub xov tooj cua AM!

 

Tiv tauj peb Hnub no

Cov khoom pom zoo Koj kuj tseem yuav txaus siab rau

 

High Power Solid-state AM Transmitters txog li 200 kW
1 KW AM Transmitter	3 KW AM Transmitter	5 KW AM Transmitter	10 KW AM Transmitter
25 KW AM Transmitter	50 KW AM Transmitter	100 KW AM Transmitter	200 KW AM Transmitter

 

AM Tower Antenna Test Loads
1, 3, 10KW AM test load	100KW AM transmitter kuaj load	200KW AM transmitter kuaj load

 

Nug rau Quotation

 

Medium Wave AM Antenna Tuning Unit: Nws yog dab tsi thiab nws ua haujlwm li cas?

 

Qhov nruab nrab nthwv dej Kav hlau txais xov tuning unit (ATU) hais txog ib qho khoom sib txuas ntawm AM broadcast transmitter thiab AM broadcast antenna.

 

Cov cab kuj tsim los ntawm AM broadcast transmitter yog kis mus rau lub kav hlau txais xov los ntawm coax feeder, thiab tus kav hlau txais xov radiates tawm electromagnetic tsis.

 

Lub kav hlau txais xov tuning chav kuj tseem muaj npe raws li hauv qab no:

 

• Kav hlau txais xov tuner
• Tsis siv neeg kav hlau txais xov tuner
• Kav hlau txais xov tuning
• Kav hlau txais xov match
• Ant tuner
• Kav hlau txais xov ATU
• Kav hlau txais xov matcher
• Antenna matching unit
• Kav hlau txais xov tuning unit
• Kav hlau txais xov unit
• ATU kav hlau txais xov
• ATU kav hlau txais xov tuner
• Nws pib kav hlau txais xov tuner
• AM kav hlau txais xov tuning unit
• Kav hlau txais xov impedance txuam network
• ATU kav hlau txais xov tuning unit

 

Antenna Tuning Unit Design: Piav qhia los ntawm FMUSER 

 

Lub kav hlau txais xov tsis siv neeg tuner yog tus choj uas txuas cov coax feeder, transmitter, thiab tus kav hlau txais xov, los ntawm kev kho qhov tsis sib kis, lub kav hlau txais xov tuning chav muaj peev xwm seamless ua tiav tib impedance ntawm cov tswv yim kawg ntawm lub kav hlau txais xov xa xov thiab lub feeder thiab compensating. reactance ntawm transmitting kav hlau txais xov.

 

 

Qhov tseeb, nyob rau hauv lub transmitter kav hlau txais xov feeder system, kav hlau txais xov thiab feeder yog ob lub tshuab.

 

Vim muaj cov yam ntxwv impedance sib txawv, ib feem ntawm lub zog hluav taws xob electromagnetic cuam tshuam rov qab los ua ib qho yoj sawv ntawm kab. Qhov piv ntawm qhov voltage ncov rau qhov voltage trough ntawm sawv nthwv dej yog hu ua qhov voltage sawv yoj piv.

 

Thaum sawv ntsug yoj piv yog sib npaug rau 1, nws txhais tau hais tias lub kav hlau txais xov thiab lub feeder tau sib luag tag nrho, thiab lub zog loj ntawm lub transmitter yog tag nrho cov radiated los ntawm tus kav hlau txais xov. Qhov degree ntawm kev sib piv ntawm tus kav hlau txais xov thiab lub feeder yog ntsuas los ntawm qhov cuam tshuam coefficient lossis qhov sawv yoj piv ntawm tus kav hlau txais xov tswv yim.

 

Rau cov kav hlau txais xov xa xov, yog tias lub kav hlau txais xov tsis zoo, lub zog hluav taws xob ntawm lub kav hlau txais xov yuav txo qis, qhov poob ntawm lub feeder yuav nce, thiab lub zog muaj peev xwm ntawm lub feeder yuav txo.

 

Qhov piv ntawm lub teeb liab voltage rau lub teeb liab tam sim no ntawm lub tswv yim ntawm tus kav hlau txais xov yog hu ua input impedance ntawm tus kav hlau txais xov. Lub input impedance muaj ib tug resistive tivthaiv R thiab ib tug reactive tivthaiv X, uas yog, impedance Z = R + JX.

 

Qhov muaj nyob ntawm cov khoom siv reactive yuav txo qhov kev rho tawm ntawm lub teeb liab lub zog los ntawm tus kav hlau txais xov los ntawm lub feeder. Yog li ntawd, lub reactive tivthaiv yuav tsum tau ua kom zero li sai tau, uas yog, lub input impedance ntawm lub kav hlau txais xov yuav tsum tau ua kom dawb huv kuj li sai tau.

 

Yog li ntawd, lub kav hlau txais xov sib txuam chav tsev yog ntxiv ntawm tus kav hlau txais xov thiab lub feeder.

 

Nrhiav rau ntau yam khoom siv los tsim kom tiav cov kav hlau txais xov rau koj qhov chaw tshaj tawm? Tshawb xyuas cov no!

 

Coax Connectors	Rigid Line & Parts	RF Cavity Lim	Transmitter Combiners
RF Dummy Loads	Xob Tiv Thaiv	FM Kav hlau txais xov	FM Transmitters
AM Transmitters	AM Antennas	TV Transmitters	TV Antennas

 

Yog hais tias tus yam ntxwv impedance ntawm lub feeder yog 50 Ω, los ntawm kev kho cov kav hlau txais xov impedance, qhov kev xav ntawm qhov input impedance yog me me thiab qhov tiag tiag yog nyob ze rau 50 Ω nyob rau hauv qhov yuav tsum tau ua hauj lwm ntau zaus kom lub input impedance ntawm tus kav hlau txais xov. Z = R = 50 Ω, thiab zoo impedance txuam ntawm tus kav hlau txais xov thiab feeder tiav. Hauv kev sim tiag tiag, peb feem ntau siv vector network analyzer los ntsuas impedance.

 

 

Lub hom phiaj ntawm kev teeb tsa lub kav hlau txais xov sib koom ua ke yog txhawm rau txo qhov sawv ntsug yoj piv, txo qhov cuam tshuam lub zog, txhim kho kev sib kis tau zoo, lossis txhim kho kev sib kis.

 

Txhawm rau kho AM kav hlau txais xov tuning chav tsev, ntawm ib sab, tus kav hlau txais xov yuav tsum nyob rau hauv lub xeev resonant, thiab ntawm qhov tod tes, lub impedance ntawm lub kav hlau txais xov yuav tsum tau sib phim nrog cov khoom siv kis tau tus mob tom qab hloov los ntawm kev sib txuam network.

 

Tau kawg, txawm tias tus kav hlau txais xov zoo tsim thiab tuned yuav ib txwm muaj qhov cuam tshuam me me ntawm nws cov input impedance.

 

Pom zoo AM Transmitter Antennas rau Antenna Tuning Unit

 

FMUSER Shortwave (SW) Kav hlau txais xov Solutions Mus saib ntxiv
Omin-quadrant SW Ant	SW Omni-multi-fed Ant	SW Rotatable Ant
SW Rotatable Curtain Arrays	SW Curtain Arrays HRS 8/4/H	SW Cage Antenna
SW Curtain Arrays HRS 4/4/H	SW Curtain Arrays HRS 4/2/H	SW Curtain Arrays HR 2/1/H
	FMUSER shortwave transmitter kav hlau txais xov kev daws teeb meem - Mus saib ntxiv
SW Curtain Arrays HR 2/2/H

 

Tiv tauj peb cov kws tshaj lij

 

FMUSER Medium Wave (MW) Kav hlau txais xov Solutions Mus saib ntxiv
Txais Omni MW Ant	MW Shunt Fed Ant	Directional MW Ant

 

Nug rau Quotation

 

Vim li cas Antenna Tuning Unit yog qhov tseem ceeb rau Kev Tshaj Tawm Nruab Nrab Wave?

 

Feem ntau hais lus, qhov chaw nruab nrab nthwv dej transmitter muaj cov khoom siv sib kis hauv qab no:

 

• Brass hard feed tube
• Ntau yam feeders thiab connectors
• nruab nrab yoj transmitter
• Nruab nrab yoj kav hlau txais xov ntauwd
• MW Kav hlau txais xov Dummy Load
• Antenna matching unit

 

Ntawm lawv, lub luag haujlwm tseem ceeb ntawm lub kav hlau txais xov tuning chav tsev yog:

 

1. High-frequency tawm tswv yim suppression
2. Impedance txuam
3. Xob laim tiv thaiv

 

Cov khoom siv hauv chav xa khoom muaj xws li tooj dag zog cov kav dej, ntau yam khoom noj thiab cov khoom sib txuas, thiab nruab nrab nthwv dej transmitters, thaum nruab nrab yoj kav hlau txais xov ntauwd thiab AM kav hlau txais xov tuning chav tsev feem ntau ntsia sab nraum zoov (tus kav hlau txais xov hloov kho network kuj tseem tuaj yeem ntsia tau rau hauv. wave transmitter).

 

Kav hlau txais xov Tuning Unit yog Yug los rau Kev Hloov MW Kev Sib Txuas Lus

 

Vim muaj kev ruaj ntseg ib puag ncig, kev saib xyuas cov cuab yeej siv hauv tsev yog qhov yooj yim rau kev nqa tawm, thaum kev saib xyuas cov khoom siv hluav taws xob nruab nrab sab nraud yog qhov nyuaj dua, tshwj xeeb tshaj yog kev teeb tsa thiab commissioning ntawm nruab nrab-yoj antennas thiab ATU kav hlau txais xov tuning units - stemming los ntawm txoj hauj lwm no Feem ntau ntawm lawv tau ua nyob rau hauv ib qho chaw sab nraum zoov, yog li qhov chaw ua hauj lwm yuav tsis zoo thiab cov kev tu xyuas yuav nyuaj heev.

 

Tsis tas li ntawd, nrog txoj kev loj hlob ntawm lub nroog, lub kav hlau txais xov network tau yooj yim puas, qhov chaw nyob ib puag ncig electromagnetic tau dhau los ua qhov nyuaj, thiab tus naj npawb ntawm cov transmitters vim qhov tsis ua haujlwm ntawm lub kav hlau txais xov thiab feeder kuj tau nce ntxiv. Qhov zaus ntawm kev debugging tes hauj lwm tau dhau los ua ntau thiab ntau dua li ua ntej.

 

Lub kav hlau txais xov Tuning Unit yog qhov kawg Network rau qhov chaw nres tsheb Transmitter

 

Nws yog tsim nyog hais tias qhov input impedance ntawm lub kav hlau txais xov feem ntau muaj feem xyuam rau nws cov qauv geometric thiab zaus ntawm cov xov tooj cua tuaj. Ntawm no, ib txheej ntawm kav hlau txais xov tuning units uas phim lub input impedance ntawm tus kav hlau txais xov thiab cov yam ntxwv impedance ntawm feeder yuav tsum tau pab kom lub transmitter tso zis. Lub zog muaj zog tuaj yeem xa mus rau lub kav hlau txais xov ib txwm.

 

Nyob rau tib lub sijhawm, raws li qhov kawg ntawm lub network ntawm lub transmitter system, ATU kav hlau txais xov tuning chav tsev tsis yog tsuas yog cuam tshuam txog seb lub transmitter tuaj yeem tig rau ib txwm, tab sis kuj rau qhov zoo thiab kev nyab xeeb ntawm cov teeb liab kis los ntawm lub transmitter. Thaum nws nyuaj los kho qhov txhaum, nws yuav ua rau lub xov tooj cua nres tau ntev. tshaj tawm (thiab qhov tseeb, qhov no feem ntau tshwm sim), uas yuav ua rau lub xov tooj cua cov nyiaj tau los tsis zoo.

 

Kev saib xyuas zoo ntawm Antenna Tuning Unit yog qhov tseem ceeb

 

Kev txhim kho du, debugging, thiab kev tiv thaiv ntawm lub kav hlau txais xov network yog qhov tseem ceeb heev rau txhua qhov chaw tso tawm.

 

Vim muaj ntau lub hom phiaj, chav nruab nrab nthwv dej xa hluav taws xob hauv ntau lub teb chaws / cheeb tsam tsis tuaj yeem tsim chav sib txuam, thiab tsuas yog siv lub thawv sib txuam xwb. Feem ntau txuam lub thawv installation yuav tsum yog:

         

• Qhov loj ntawm lub thawv yuav tsum tsim nyog rau qhov chaw yuav tsum tau nruab.
• Thaum stratifying qhov chaw sab hauv ntawm lub thawv, xav txog qhov loj ntawm qhov xav tau inductor thiab tso cai rau nws los nruab.
• Vim yog kev ua haujlwm ntev rau sab nraum zoov, nws yog ib qho tsim nyog yuav tsum xav txog tias cov khoom siv lub thawv yuav tsum tsis muaj dej, tsis muaj hluav taws, xeb-pov thawj, plua plav-pov thawj, thiab ruaj khov.
• Tag nrho qhov hnyav ntawm lub thawv yuav tsum tsim nyog rau kev teeb tsa thiab xav txog kev thauj khoom ntawm tus ncej.
• Lub thawv qhov rooj yuav tsum tau muab tshem tawm kom deb li deb tau rau kev ntsuas thiab kev debugging, thiab lub thawv lub qhov rooj tuaj yeem qhib rau ob sab pem hauv ntej thiab nraub qaum thaum muaj xwm txheej tso cai.

 

Txawm li cas los xij, kev siv cov thawv sib txuam yuav txwv tsis pub muaj pes tsawg ntawm cov khoom yuav tsum tau muab tso rau. Tsis muaj ntau yam khoom thiab txwv qhov chaw tso tawm, thiab qhov kev faib tawm tsis yog qhov nyuaj, uas ua rau muaj kev nyuaj ntawm kev teeb tsa, kev debugging, thiab kev saib xyuas.

 

Cov khoom pom zoo Koj kuj tseem yuav txaus siab rau

Mus txog 1000 Watts Tsawg Fais Fab FM transmitters	Mus txog 10000 Watts Muaj zog FM transmitters	Transmitters, kav hlau txais xov, cables FM transmitter pob khoom
Xov tooj cua studio, transmitter chaw nres tsheb Cov khoom siv hauv xov tooj cua	STL TX, RX, and antenna STL links	1 mus rau 8 bays FM kav hlau txais xov pob FM Kav hlau txais xov System

 

Antenna Tuning Unit: Zoo dua tshuaj rau Traditional Antenna Tuning

 

Lub tshuab tso zis network ntawm ib txwm transmitters tsis tuaj yeem ua tau raws li cov kev xav tau niaj hnub

 

Nrog rau txoj kev loj hlob sai ntawm kev siv tshuab hauv kev lag luam tshaj tawm, lub nruab nrab nthwv dej transmitter tau maj mam siv qee cov thev naus laus zis niaj hnub, uas tsis yog tsuas yog ua tau raws li kev ua haujlwm ntawm lub transmitter tab sis kuj tseem txhim kho kev ua haujlwm zoo. Raws li cov khoom ntawm lub sijhawm tshiab, tag nrho cov khoom-lub xeev nruab nrab nthwv dej transmitter muaj qhov zoo ntawm kev tiv thaiv ib puag ncig thiab kev siv hluav taws xob tsawg.

 

Tam sim no, qhov nruab nrab nthwv dej tshaj tawm hauv xov tooj cua yog qhov siv dav tshaj plaws hauv TV tshaj tawm kev lag luam. Nws zoo heev txo tus nqi ntawm kev saib xyuas thiab kev tiv thaiv ntawm lub transmitter thiab txo cov kev siv ntawm cov peev txheej thiab kev ua haujlwm ntawm cov neeg ua haujlwm cuam tshuam. lub nra.

 

Nws yuav tsum tau hais tias qhov kev ua txhaum loj hauv nruab nrab nthwv dej kis tau tus mob yog kev tshawb fawb thiab siv 10kw tag nrho cov khoom-lub xeev nruab nrab nthwv dej tshaj tawm. Piv nrog rau yav dhau los nruab nrab nthwv dej transmitter, kev ua haujlwm ntawm lub cuab yeej tau txhim kho zoo heev thiab kev saib xyuas yooj yim dua, uas ua kom cov haujlwm du ntawm tag nrho cov kab ke.

 

Cov kev hloov kho ib txwm siv rau cov khoom siv hluav taws xob ntawm lub tshuab kom phim cov kav hlau txais xov detuned network, uas tsis yog tsuas yog ua rau kev sib kis tsis tau xwb tab sis kuj tsis tuaj yeem lav qhov kev ua haujlwm ntawm lub tshuab.

 

Txawm hais tias tam sim no tag nrho cov khoom-lub xeev nruab nrab nthwv dej transmitter tau txais kev sib xyaw ua ke ntawm kev tsim hluav taws xob, cov kev xav tau rau kev ua haujlwm ib puag ncig tau txhim kho, thiab kev tiv thaiv tus kheej thiab kev saib xyuas lub peev xwm ntawm lub transmitter yog txhim kho. Nrog kev hloov me ntsis, lub transmitter yuav nquag tso lub zog los yog kaw cia.

 

Ib qho kev tsim tsis zoo ntawm Nruab Nrab Wave Transmitter

 

Ntxiv mus, vim tias muaj peev xwm tiv thaiv kev cuam tshuam thiab tsis tshua muaj hluav taws xob tsis zoo ntawm cov hlau oxide semiconductor teb cov nyhuv transistor siv nyob rau hauv tag nrho cov khoom-lub xeev nruab nrab nthwv dej transmitter tsis zoo txaus, nws yuav inevitably muaj kev cuam tshuam tsis zoo ntawm lub kav hlau txais xov network thaum lub sijhawm ua haujlwm. .

 

Txawm hais tias lub transmitter tuaj yeem kis tau ruaj khov thiab ntseeg tau thiab ua tiav qhov siab tshaj plaws ntawm lub zog kis tau tus mob feem ntau cuam tshuam los ntawm kev tsim cov kav hlau txais xov tuning.

 

Qhov tshwm sim ntawm lub adaptive network tau hloov cov tsoos kav hlau txais xov-feeder system nrog txuam thiab detuning ntawm lub transmitter kawg. Thaum lub kav hlau txais xov impedance hloov nrog kub lossis av noo, cov tswv yim impedance ntawm lub kav hlau txais xov hloov kho network deviates ntawm 50Ω. Los ntawm kev kho lub adaptive network, Lub impedance ntawm lub kav hlau txais xov tuning unit yog re-matched rau 50Ω, thiaj li yuav xyuas kom meej tias lub transmitter ua tau zoo tshaj plaws kis tau tus mob nyhuv.

 

Txij li thaum lub adaptive network yog ib qho kev hloov tsis sib cuag, qhov kev hloov kho tsis cuam tshuam rau qhov kev tshaj tawm ntawm lub transmitter, thiab tsis muaj qhov tshwm sim uas kev hloov kho yog qhov nyuaj lossis tsis tuaj yeem kho tom qab ob peb zaug ntawm kev hloov kho.

 

Dab tsi yog Cov Qauv Tseem Ceeb ntawm Antenna Tuning Unit

 

Lub kav hlau txais xov tuning chav tsev feem ntau yog tsim los ntawm kev sib txuam network, thaiv kev sib txuas, kev nqus network, preset network, kev tiv thaiv xob laim, thiab lwm yam.

 

Nyob rau hauv kev siv tswv yim, vim hais tias lub nruab nrab yoj kav hlau txais xov yog kuj siab, nws yog yooj yim cuam tshuam los ntawm xob laim thiab electromagnetic ib puag ncig. Txhawm rau kom muaj kev nyab xeeb thiab kev ua haujlwm ib txwm muaj ntawm lub tshuab xa tawm, qee tus neeg xa khoom ntawm lub kav hlau txais xov network yuav tso cov graphite tawm pob ntawm qhov nkag ntawm lub kav hlau txais xov kom tso tawm. Los yog ntxiv qhov thaiv kev sib txuas thiab kev tiv thaiv xob laim rau lub network sib txuam.

 

Matching Network ntawm Kav hlau txais xov ATU

 

Qhov tseem ceeb ntawm qhov muaj nyob ntawm qhov sib txuam network yog ua kom tag nrho cov khoom-lub xeev nruab nrab-yoj tshaj tawm hauv xov tooj cua thiab lub feeder yam ntxwv tsis kam txuas nrog kom nws tuaj yeem pom cov teeb tsa network hauv lub xeev sib txuam. Qhov sib txuam network tsis cuam tshuam rau kev ua haujlwm du ntawm tag nrho cov khoom-lub xeev nruab nrab-yoj tshaj tawm hauv xov tooj cua. underestimated nyhuv.

 

Lub kav hlau txais xov sib koom ua ke yog lub network teeb tsa rau kev sib txuas ntawm qhov sib txuas ntawm qhov nruab nrab nthwv dej transmitter thiab cov yam ntxwv tsis kam ntawm lub feeder, thiab lub network tau teeb tsa hauv lub xeev sib xws kom tag nrho cov khoom xa tawm ntawm nruab nrab nthwv dej transmitter tuaj yeem nyob hauv ib qho zoo ua haujlwm xeev.

 

Lub hom phiaj ntawm kev ntxiv ib qho kev sib txuam rau lub kav hlau txais xov feeder system yog ua kom lub impedance ntawm tus kav hlau txais xov thiab impedance ntawm feeder sib npaug los yog zoo sib xws. Muaj peb hom kev sib koom tes: Γ puab, T puab, thiab Π puab, uas Γ puab muab faib ua zoo Γ puab thiab inverted Γ puab.

 

Lub Γ-shaped network yog qhov yooj yim, tsuas yog ob (ob pawg) cov khoom, ib qho inductor, thiab capacitor. Hauv txoj kev xav, Γ-shaped network tuaj yeem phim txhua qhov impedance rau qhov impedance peb xav tau. Lub Π-shaped network muaj peb yam, thiab inductance lossis capacitance ntawm series caj npab yog suav tias yog kev sib txuas ntawm ob lub inductances lossis capacitors, ces Π-shaped network tuaj yeem suav tias yog kev sib txuas ntawm ib qho inverted Γ thiab a zoo Γ network. Hauv kev tsim qauv, nws yuav tsum xaiv ib daim ntawv nrog cov qauv yooj yim kom ntau li ntau tau los pab daws qhov teeb meem. Thaum lub input impedance ntawm tus kav hlau txais xov yog R Z0 (feeder impedance), lub inverted Γ duab raug xaiv.

 

Lub Γ-shaped network yog qhov yooj yim, tsuas yog ob (ob pawg) cov khoom, ib qho inductor, thiab capacitor. Hauv txoj kev xav, Γ-shaped network tuaj yeem phim txhua qhov impedance rau qhov impedance peb xav tau. Lub Π-shaped network muaj peb yam, thiab inductance lossis capacitance ntawm series caj npab yog suav tias yog kev sib txuas ntawm ob lub inductances lossis capacitors, ces Π-shaped network tuaj yeem suav tias yog kev sib txuas ntawm ib qho inverted Γ thiab a zoo Γ network. Hauv kev tsim qauv, nws yuav tsum xaiv ib daim ntawv nrog cov qauv yooj yim kom ntau li ntau tau los pab daws qhov teeb meem. Thaum lub input impedance ntawm tus kav hlau txais xov yog R Z0 (feeder impedance), lub inverted Γ duab raug xaiv.

 

Blocking Network ntawm Kav hlau txais xov ATU

 

Yog vim li cas vim li cas thiaj li muaj kev thaiv kev sib txuas yog tias cov kav hlau txais xov kis ntawm qhov chaw nruab nrab nthwv dej kis tau tus yam ntxwv muaj kev sib raug zoo.

 

Nyob rau hauv qhov tseeb, lub kav hlau txais xov sib txuam chav tsev belongs rau ob lub transmitting kav hlau txais xov thiab txais kav hlau txais xov, thiab feem ntau, lub transmitting chaw nres tsheb tsis muaj tsuas yog ib tug transmitting kav hlau txais xov thiab zaus, yog li tus kav hlau txais xov yog nquag mus rau high-frequency tawm tswv yim, thiab lub high-frequency. teeb liab nyob ze tau txais nyob rau hauv qhov kev taw qhia rov qab. Nyob rau hauv chav sib tov, lub high-frequency voltage yog reversely xa mus rau lub transmitter los ntawm lub kav hlau txais xov network thiab feeder. Nrog rau kev nkag mus ntawm high-frequency voltage, lub waveform yuav inevitably hloov, qhov zoo ntawm cov teeb liab kis tau tus mob yuav raug txo, thiab nws kuj yuav cuam tshuam rau lub transmitter. Cov khoom siv thiab kev ruaj ntseg ua si tawm.

 

Kev thaiv cov network tshem tawm qhov kev cuam tshuam ntawm kev sib txuas ntawm ob-zaus circuits thiab txhim kho cov teeb liab tso zis zoo los ntawm kev sib txuas ntawm qhov sib txuas ntawm cov hluav taws xob resonant circuits.

 

Hauv kev xaus, qhov cuam tshuam ntawm kev thaiv lub network yog:

 

• los ntawm qhov teeb liab zaus
• Thaiv lwm zaus teeb liab

 

Thaum dhau lub teeb liab ntawm qhov zaus, qhov impedance yuav tsum tsis txhob loj dhau. Thaum thaiv cov teeb liab ntawm lwm zaus, tsis yog tsuas yog ib qho loj impedance yuav tsum tau nthuav tawm ntawm lwm zaus, tab sis kuj tseem yuav tsum tau nthuav tawm qhov loj impedance ntawm sab sauv thiab sab qis ntawm lwm zaus, thaiv qhov tsis tsim nyog zaus. zaus.

 

Absorption Network of Kav hlau txais xov ATU

 

Qhov tseem ceeb ntawm lub neej ntawm lub nqus nqus network yog txo qhov voltage nce tus nqi ntawm lub Circuit Court thiab tiv thaiv lub overvoltage ntawm ob qho tag nrho ntawm lub capacitor los ntawm kev puas tsuaj rau cov khoom thiab ua rau tsis ua hauj lwm.

 

Pre-tuned network of Kav hlau txais xov ATU

 

Kev hloov kho ua ntej lub network yog kom phim lub kav hlau txais xov impedance, feem ntau yog los ntawm kev ntxiv ib qho inductance nyob rau hauv qab ntawm tus kav hlau txais xov thiab lub kav hlau txais xov impedance nyob rau hauv parallel los tsim ib tug tsim nyog ib feem ntawm lub reactance los pab txhawb kev tsim thiab debugging ntawm kev sib txuam network.