1. Tsev
  2. khoom
  3. UHF Cavity Lim

UHF Cavity Lim

A UHF kab noj hniav lim is a hom of xov tooj cua zaus (RF) lim siv rau cais tawm pliaj Pib ntsais koj teeb at UHF frequencies. It is ntau zaus siv in UHF tshaj tawm hauv xov noj rau lim tawm cuam ​​tshuam Pib ntsais koj teeb, xws as nyob ib sab channel Pib ntsais koj teeb, harmonics, thiab spurious Pib ntsais koj teeb, in kev txiav txim rau txhim kho lub zoo of lub tau txais Teeb liab. UHF kab noj hniav cov ntxaij lim dej yog ib qho tseem ceeb rau UHF xov tooj cua tshaj tawm vim hais tias lawv tau pab txo cuam ​​tshuam nrog thiab xyuas kom meej uas tsuas lub xav tau Teeb liab is tau txais. cov siv of a UHF kab noj hniav lim in a UHF tshaj tawm hauv xov chaw nres tsheb yuav tsum tau an engineer or kws tshawb fawb rau nruab lub lim, tune it rau lub xav tau zaus, thiab kho it as yuav tsum tau rau xyuas kom meej qib siab kev ua tau zoo.

Dab tsi yog UHF kab noj hniav lim?
UHF kab noj hniav lim yog ib hom xov tooj cua zaus lim siv los cais, dhau, lossis tsis lees txais xov tooj cua zaus hauv ultra-high zaus (UHF). Nws muaj kev sib xyaw ua ke ntawm cov kab sib txuas thiab kab noj hniav, uas ua raws li cov resonators. Lub ntsiab lus rau UHF kab noj hniav lim yog UHF bandpass lim.
Dab tsi yog cov kev siv feem ntau ntawm UHF kab noj hniav lim?
Cov kev siv ntau tshaj plaws ntawm UHF kab noj hniav lim dej yog hauv xov tooj cua thiab TV tshaj tawm, kev sib txuas lus satellite, xov tooj cua navigation, thiab telemetry systems. Lawv yog siv los txo kev cuam tshuam thiab txhim kho lub teeb liab-rau-suab nrov piv ntawm lub kaw lus. UHF kab noj hniav lim yog tshwj xeeb tshaj yog pab tau nyob rau hauv daim ntawv thov uas ib tug nqaim zaus band yuav tsum tau muab cais, xws li nyob rau hauv wireless kev sib txuas lus systems. Lawv kuj tau siv hauv WiFi thiab xov tooj ntawm tes, xov tooj cua thiab xov tooj cua repeaters, radar systems, thiab kev sib txuas lus tub rog, ntawm lwm yam kev siv.
Yuav siv UHF kab noj hniav lim rau TV tshaj tawm li cas?
1. Nruab lub lim rau hauv lub kav hlau txais xov ua raws li cov chaw tsim khoom cov lus qhia.

2. Xyuas kom meej tias lub lim tau ruaj ntseg zoo thiab lub kav hlau txais xov yog tsim nyog hauv av.

3. Teem lub lim lub passband zaus ntau npaum li cas los npog qhov xav tau tshaj tawm ntau zaus.

4. Txheeb xyuas tias cov lim dej muaj qhov tso tawm txaus los xyuas kom meej tias lub zog emission tseem nyob hauv qhov txwv.

5. Saib xyuas lub lim dej tsis tu ncua kom paub tseeb tias nws ua tau raws li qhov xav tau.

6. Yuav tsum paub txog cov teeb meem lim dej xws li tawm ntawm cov teeb liab band thiab harmonic distortion.

7. Txheeb xyuas cov lim cov kev sib txuas ib ntus kom ntseeg tau tias lawv nyob ruaj ntseg.

8. Nco ntsoov siv lub lim uas tsim nyog rau daim ntawv thov, vim tsis yog txhua lub lim dej haum rau txhua daim ntawv thov.
UHF kab noj hniav lim ua haujlwm li cas hauv UHF tshaj tawm?
UHF kab noj hniav lim yog siv nyob rau hauv ib tug UHF tshaj tawm xov xwm chaw nres tsheb kom txo tau kev cuam tshuam los ntawm lwm yam tshaj tawm xov xwm thiab tso cai rau lub teeb liab uas xav tau mus. Cov lim dej yog tsim los ntawm cov raj hlau uas tau teem rau hauv ib qho qauv, thiab txhua lub raj tau hloov mus rau qhov sib txawv. Cov hlab yog txuas ua ke rau hauv ib lub kaw lus kaw thiab thaum lub teeb liab xav tau raug xa los ntawm lub lim, nws dhau los ntawm cov raj uas phim nws qhov zaus thiab raug thaiv los ntawm lwm cov raj. Qhov no ua kom ntseeg tau tias tsuas yog lub teeb liab xav tau raug tso cai hla dhau ntawm lub lim.
Vim li cas UHF kab noj hniav thiaj li xav tau rau qhov chaw nres tsheb tshaj tawm UHF?
UHF kab noj hniav lim yog ib qho tseem ceeb ntawm lub chaw nres tsheb UHF tshaj tawm vim nws tiv thaiv lub teeb liab ntawm qhov chaw nres tsheb transmitter los cuam tshuam nrog lwm cov teeb liab ntawm tib zaus. Nws kuj tseem tiv thaiv cov teeb liab los ntawm lwm cov transmitters ntawm ntau zaus los ntawm kev cuam tshuam cov teeb liab los ntawm qhov chaw nres tsheb transmitter. UHF kab noj hniav yog tsim nyog rau lub chaw nres tsheb tshaj tawm UHF vim nws pab xyuas kom lub chaw nres tsheb lub teeb liab muaj zog thiab meej, tsis muaj kev cuam tshuam los ntawm lwm cov teeb liab.
Dab tsi yog hom UHF kab noj hniav lim thiab lawv qhov sib txawv ntawm?
Muaj peb yam tseem ceeb ntawm UHF kab noj hniav lim: Bandpass, Notch (Bandstop), thiab Highpass.

Bandpass cov ntxaij lim dej yog tsim los kom dhau ib qhov ntau zaus, lossis "band", ntawm cov cim thaum thaiv tag nrho lwm zaus.

Notch (Bandstop) cov ntxaij lim dej yog tsim los thaiv qhov ntau zaus, lossis "band", ntawm cov cim thaum hla tag nrho lwm zaus.

Highpass cov ntxaij lim dej yog tsim los kom dhau high zaus thaum thaiv cov zaus tsawg.

Ua ntej muab qhov kev txiav txim zaum kawg, yuav ua li cas xaiv qhov zoo tshaj plaws UHF kab noj hniav lim rau qhov chaw nres tsheb tshaj tawm UHF?
Yuav ua li cas xaiv qhov zoo tshaj plaws UHF kab noj hniav lim?
1. txheeb xyuas qhov tseeb ntau zaus thiab bandwidth xav tau.

2. Txiav txim siab txog kev tuav fais fab.

3. Xav txog hom lim uas xav tau (tsawg pass, high pass, band pass, thiab lwm yam).

4. Xav txog qhov kev poob qis, rov qab poob, thiab tsis lees paub qhov tshwj xeeb.

5. Txheeb xyuas cov kev cai ib puag ncig (kub, av noo, thiab lwm yam).

6. Tshawb nrhiav cov hom muaj thiab sib piv lawv cov specifications kom pom qhov kev xaiv zoo tshaj plaws.

7. Sib piv cov nqi ntawm cov khoom thiab nrhiav cov kev daws teeb meem zoo tshaj plaws.

8. Xav txog tej yam ntxiv lossis kev tsim qauv uas yuav tsim nyog.

9. Tshawb xyuas cov khoom tshuaj xyuas thiab kev tawm tswv yim los ntawm lwm tus neeg siv khoom.

10. Hu rau cov chaw tsim khoom lossis tus neeg muag khoom kom paub tseeb tias cov khoom sib xws nrog koj lub cev.
Yuav ua li cas txuas UHF kab noj hniav kom raug?
1. Txhim kho lub lim raws li cov lus qhia tau muab nrog lub lim.

2. Txuas lub lim cov tswv yim (“IN”) rau lub transmitter cov zis.

3. Txuas lub lim cov zis (“OUT”) rau lub kav hlau txais xov.

4. Ua ib qho kev xeem cheb kom paub tseeb tias cov lim dej txuas nrog thiab ua tau zoo.

5. Saib xyuas lub lim dej ua haujlwm thaum lub sijhawm ua haujlwm ib txwm thiab kho raws li qhov tsim nyog.
Dab tsi yog cov cuab yeej cuam tshuam nrog UHF kab noj hniav lim?
1. Cavity Filter: Qhov no yog qhov tseem ceeb ntawm UHF kab noj hniav lim system. Nws yog ib lub vaj tsev hlau nrog cov txheej txheem kev sib txuas uas tsim los kom dhau UHF zaus.

2. RF Amplifier: Ib qho RF amplifier yog siv los txhawb lub teeb liab lub zog ua ntej nws nkag mus rau hauv cov kab noj hniav lim.

3. RF Hloov: Ib qho RF hloov yog siv los xaiv qhov xav tau UHF channel rau kev sib kis.

4. Kav hlau txais xov: Ib lub kav hlau txais xov yog siv los xa cov teeb liab UHF mus rau qhov chaw txais.

5. Transmission Line: Ib txoj kab sib kis tau siv los txuas UHF kab noj hniav lim rau lub kav hlau txais xov.

6. Kev Siv Hluav Taws Xob: Cov khoom siv hluav taws xob yog siv los muab lub zog xav tau rau UHF kab noj hniav lim.
Dab tsi yog qhov tseem ceeb tshaj plaws ntawm UHF kab noj hniav lim?
Cov Lus Qhia Txog Lub Cev
- Loj: UHF kab noj hniav lim tuaj ntau qhov ntau thiab tsawg, nyob ntawm qhov ntau zaus thiab hom. Qhov loj ntawm lub lim yuav nyob ntawm seb cov kab noj hniav uas siv hauv lub lim.

- Insertion Poob: Qhov no yog qhov poob ntawm lub teeb liab lub zog thaum lub teeb liab hla lub lim. Nws feem ntau yog ntsuas hauv decibels (dB).

- Rov Los Poob: Qhov no yog lub zog rov qab los rau hauv lub lim thaum lub teeb liab xa mus. Nws yog ntsuas hauv decibels (dB).

- Bandwidth: Qhov no yog qhov ntau zaus uas lub lim tuaj yeem dhau mus. Bandwidth feem ntau ntsuas hauv hertz (Hz).

RF Qhia Tshwj Xeeb
- Center Frequency: Qhov no yog qhov zaus uas lub lim yuav dhau lub zog ntau tshaj plaws. Nws feem ntau ntsuas hauv hertz (Hz).
- Attenuation: Qhov no yog lub zog uas lub lim yuav thaiv ntawm ntau zaus. Nws feem ntau yog ntsuas hauv decibels (dB).

- Kev tsis lees paub: Qhov no yog lub zog uas lub lim yuav thaiv sab nraud ntawm qhov xav tau ntau zaus. Nws feem ntau yog ntsuas hauv decibels (dB).

- Pab Pawg Ncua sijhawm: Qhov no yog lub sijhawm nws siv sijhawm rau lub teeb liab kom dhau los ntawm cov lim dej ntawm ntau zaus. Nws yog ntsuas hauv vib nas this (s).
Yuav ua li cas tswj lub UHF kab noj hniav lim raws li ib tug boadcast engineer?
1. Txheeb xyuas cov theem fais fab ntawm qhov system.
2. Tshawb xyuas UHF kab noj hniav lim rau plua plav, av, corrosion, thiab lwm yam khib nyiab.
3. Xyuas kom meej tias lub lim tau raug zaum thiab txuas nrog lub kav hlau txais xov.
4. Kuaj cov lim kev ua tau zoo nrog lub spectrum analyzer.
5. Ntxuav lub lim nrog txhuam mos thiab cov cua compressed.
6. Ntsuas qhov kev poob qis thiab rov qab poob ntawm lub lim.
7. Tshawb xyuas lub lim cov ntsia hlau kom paub tseeb tias lawv tau teeb tsa kom raug.
8. Txheeb xyuas qhov ntsuas kub thiab av noo.
9. Ntsuas lub lim nrog lub teeb liab lub tshuab hluav taws xob kom paub tseeb tias nws ua haujlwm zoo.
10. Xyuas kom meej tias lub lim lub suab nrov nyob hauv cov qib uas tau txais.
Yuav ua li cas kho lub UHF kab noj hniav kom zoo?
Kev kho lub lim UHF kab noj hniav tuaj yeem ua tiav hauv ob peb kauj ruam. Ua ntej, nws yog ib qho tseem ceeb los kuaj xyuas qhov teeb meem. Kev tshuaj xyuas qhov pom ntawm lub lim thiab nws cov khoom yuav tsum tau ua los xyuas seb puas muaj qhov tawg, kev sib txuas xoob, lossis lwm yam cim ntawm kev puas tsuaj lossis ua haujlwm tsis zoo.

Yog tias pom cov khoom tawg, nws yog ib qho tseem ceeb los txiav txim siab qhov ua tsis tiav ua ntej hloov cov khoom puas. Yog tias nws tau txiav txim siab tias qhov teeb meem yog vim muaj kev tsim khoom lossis kev ua haujlwm tsis zoo, ces cov khoom yuav tsum tau hloov nrog cov tshiab.

Thaum lub faulty qhov chaw tau raug hloov, lub lim yuav tsum tau reassembled raws li cov chaw tsim tshuaj paus cov lus qhia. Qhov no yuav suav nrog rov txuas ntau yam khoom sib txuas thiab kho txhua qhov chaw ntawm lub lim.

Thaum kawg, lub lim yuav tsum raug kuaj kom paub tseeb tias nws ua haujlwm raug. Yog tias pom muaj teeb meem, cov txheej txheem yuav tsum tau rov ua kom txog thaum lub lim ua haujlwm raug.
Yuav ua li cas kom ntim cov kab noj hniav UHF ua ntej thiab tom qab xa khoom?
1. Xaiv cov khoom ntim khoom uas muaj kev tiv thaiv zoo li qub, tsis muaj dej tsis zoo, thiab kev poob siab.
2. Xaiv lub pob uas zoo padded thiab yuav muab kev tiv thaiv txaus thaum thauj.
3. Ua kom lub ntim ntim tau raug kaw kom zoo los tiv thaiv kev nkag mus ntawm cov dej noo lossis cov khoom paug.
4. Nco ntsoov tias lub pob tau sau npe kom raug thiab qhia meej cov ntsiab lus.
5. Nco ntsoov tias lub pob yog qhov loj me rau cov khoom xa tuaj.
6. Nco ntsoov tias lub pob muaj kev ruaj ntseg los yog kev ruaj ntseg kom tsis txhob muaj kev hloov pauv thaum caij tsheb npav.
7. Nco ntsoov suav nrog cov ntaub ntawv tsim nyog lossis daim ntawv pov thawj xav tau rau cov khoom xa tuaj.
8. Nco ntsoov xav txog tej yam yuav tsum tau ua ntxiv rau kev xa khoom lossis tuav cov khoom, xws li kev txwv kub lossis kev co.
UHF kab noj hniav lim casing yog dab tsi?
Lub casing ntawm UHF kab noj hniav lim feem ntau yog ua los ntawm cov khoom siv dielectric, xws li ceramic, iav, los yog yas. Cov khoom siv dielectric no yog ib qho tseem ceeb rau kev ua haujlwm ntawm lub lim dej, raws li nws txiav txim siab npaum li cas ntawm lub zog uas dhau los ntawm lub lim. Yog tias siv cov khoom siv tsis raug, lub lim yuav tsis tuaj yeem lim tawm qhov xav tau ntau zaus, ua rau kev ua haujlwm tsis zoo. Tsis tas li ntawd, cov khoom siv tuaj yeem cuam tshuam rau lub lim qhov kev nkag mus, rov qab poob, thiab lwm yam kev ua haujlwm tsis zoo.
Dab tsi yog qhov qauv ntawm UHF kab noj hniav lim?
Cov qauv yooj yim ntawm UHF kab noj hniav lim muaj plaub qhov tseem ceeb: qhov txuas txuas, cov resonators, iris, thiab cov zis.

Lub coupling ncej muab cov hluav taws xob kev sib txuas ntawm cov tswv yim thiab cov zis ntawm lub lim. Nws kuj yog siv los kho tus nqi ntawm lub zog uas ua ke ntawm cov tswv yim thiab cov zis ntawm lub lim.

Cov resonators yog cov khoom tseem ceeb ntawm cov lim. Lawv yog siv los ua kom tau raws li qhov xav tau cov lus teb zaus.

Lub iris yog lub phaj hlau adjustable uas yog siv los kho qhov zaus ntawm lub lim. Nws feem ntau yog siv los ua kom tiav cov lus teb nqaim ntau dua li qhov ntau zaus.

Cov zis yog siv los muab kev sib txuas hluav taws xob rau cov zis ntawm lub lim.

Kev ua tau zoo thiab cov cwj pwm ntawm cov lim dej yog txiav txim siab los ntawm kev sib xyaw ntawm cov khoom, lawv cov qauv tsim, thiab kev kho ntawm iris. Yog tsis muaj ib qho ntawm cov qauv no, lub lim tsis tuaj yeem ua haujlwm ib txwm.
Yuav ua li cas ua haujlwm kom zoo UHF kab noj hniav lim?
Tus neeg raug xaiv los tswj UHF kab noj hniav lim yuav tsum muaj kev nkag siab zoo ntawm cov khoom siv hluav taws xob thiab paub txog kev ntsuas xov tooj cua zaus (RF), tshwj xeeb tshaj yog cuam tshuam nrog kev ua haujlwm ntawm lub lim. Lawv kuj yuav tsum muaj kev paub txog kev siv cov khoom siv ntsuas thiab ntsuas, nrog rau cov qauv ntawm cov kav hlau txais xov tsim thiab lim tuning. Lawv kuj yuav tsum muaj kev paub nrog UHF tshaj tawm xov xwm thiab tuaj yeem daws teeb meem uas yuav tshwm sim.
Koj yog leej twg?
Kuv nyob zoo

NCO NTSOOV

NCO NTSOOV

    TIV TAUJ PEB

    contact-email
    tiv-logo

    FMUSER INTERNATIONAL GROUP LIMITED.

    Peb ib txwm muab peb cov neeg siv khoom nrog cov khoom lag luam txhim khu kev qha thiab kev pabcuam siab.

    Yog tias koj xav tiv tauj peb ncaj qha, thov mus rau hu rau peb

    • Home

      Tsev

    • Tel

      Tel

    • Email

      Email

    • Contact

      Tiv tauj

    lus