Lub hauv paus ntsiab lus ntawm kev sib txuas lus antennas thiab accessories,
Yuav ua li cas zoo dua tau txais thiab xa cov teeb liab rau 3g / 4g teeb liab repeater amplifiers?
Lub Vev Xaib:https://www.lintratek.com/
Ua ntej, lub hauv paus ntsiab lus kav hlau txais xov:
1.1 Txhais cov kav hlau txais xov:
Ib lub cuab yeej uas tuaj yeem ua tau zoo hluav taws xob hluav taws xob tsis zoo rau ib qho kev taw qhia tshwj xeeb hauv qhov chaw lossis tuaj yeem tau txais hluav taws xob tsis zoo los ntawm ib qho kev taw qhia tshwj xeeb hauv qhov chaw.
1.2 Kav hlau txais xov muaj nuj nqi:
Ø Zog hloov dua siab tshiab – hloov dua siab tshiab ntawm coj nthwv dej thiab dawb chaw nthwv dej; Directional radiation (reception) - muaj ib qho kev ncaj qha.
1.3 Kav hlau txais xov hluav taws xob txoj cai:
1.4 Kav hlau txais xov Parameters
Radiation parameter
Ø Ib nrab lub zog nqaj dav, pem hauv ntej mus rau sab nraub qaum;
Ø hom polarization, hla polarization kev ntxub ntxaug;
Ø Directivity factor, kav hlau txais xov nce;
Ø Main lobe, theem nrab lobe, sidelobe suppression, xoom filling, beam downtilt ...
Parameter ntawm Circuit Court
Voltage sawv yoj piv VSWR, kev cuam tshuam coefficient Γ, rov poob RL;
Ø Input impedance Zin, kis tau tus mob TL;
Ø Kev rho tawm Iso;
Ø Passive thib peb txiav txim Intermodulation PIM3…
Kav hlau txais xov sidelobe
Kab rov tav Beam dav
Pem hauv ntej mus rau sab nraub qaum: Qhia qhov sib piv ntawm lub zog hluav taws xob rau pem hauv ntej rau lub kav hlau txais xov thiab rov qab hluav taws xob hluav taws xob hauv ± 30 °.
Kev sib raug zoo ntawm qhov nce thiab kav hlau txais xov loj thiab beamwidth
Flattening lub "tsheb tuam", qhov ntau concentrated lub teeb liab, qhov siab dua qhov nce, lub kav hlau txais xov loj loj, thiab qhov nqaim ntawm lub beamwidth;
Ob peb lub ntsiab lus tseem ceeb ntawm antenna nce:
Lub kav hlau txais xov yog ib qho khoom siv passive thiab tsis tuaj yeem tsim lub zog. Kav hlau txais xov nce yog tsuas yog lub peev xwm los mloog zoo zog kom tawg los yog tau txais electromagnetic tsis nyob rau hauv ib qho kev taw qhia.
Ø Qhov nce ntawm lub kav hlau txais xov yog tsim los ntawm superposition ntawm vibrators. Qhov siab dua qhov nce, qhov ntev ntawm lub kav hlau txais xov. Nce qhov nce los ntawm 3dB thiab ob npaug ntawm qhov ntim.
Qhov siab dua tus kav hlau txais xov nce, qhov zoo dua qhov kev coj ua, lub zog muaj zog ntau dua, thiab qhov nqaim ntawm lub lobe.
1.5 Radiation Parameters
Polarization: yog hais txog txoj hauv kev los yog kev hloov pauv ntawm lub zog hluav taws xob hauv qhov chaw.
1.6 Circuit Court Parameters
Rov qab poob
Ob, cov khoom siv kav hlau txais xov
2.1 Kav hlau txais xov npe txoj kev:
Kav hlau txais xov pawg: ODP (sab nraum zoov taw qhia phaj kav hlau txais xov), OOA (sab nraum zoov omnidirectional kav hlau txais xov), IXD ( sab hauv tsev kav hlau txais xov), OCS ( sab nraum zoov bidirectional kav hlau txais xov ), OCA ( sab nraum zoov pawg kav hlau txais xov ), OYI ( sab nraum zoov Yagi kav hlau txais xov ), ORA ( sab nraum zoov pov nto kav hlau txais xov), IWH (sab hauv phab ntsa mounted kav hlau txais xov) thiab lwm yam.
Ib nrab lub zog Lub kaum sab xis: 032,065,090,105,360 (chaw nres tsheb hauv paus kav hlau txais xov) 020,030,040,050,060,075,090,120,160,360 (repeater kav hlau txais xov)
Polarization hom: R (dual polarization), V (ib qho polarization)
Tau txais: Tus nqi siab tshaj plaws yog 21dbi raws li tus nqi tiag
Hom sib koom: D (Din taub hau), N (N-hom taub hau), S (SMA taub hau), T (TNC taub hau) thiab lwm yam
Zaus band:
Specification code: Cov ntawv Roman qhia txog tiam ntawm cov khoom. Cov tsiaj ntawv thiab cov lej hauv qab no qhia txog lub kaum sab xis, cov duab, thiab lwm yam ntaub ntawv. F hom; V kev tswj hluav taws xob; RV tej thaj chaw deb hluav taws xob modulation
2.2 Base Station Antenna
Omnidirectional Antenna Dual-Frequency Kav hlau txais xov
Peb-Frequency Antenna
Qab nthab Kav hlau txais xov
Phab ntsa Mounted Antenna
Yagi Antenna
Grid Antenna
Broadband Omnidirectional Kav hlau txais xov Log-Periodic kav hlau txais xov phaj kav hlau txais xov
3.1 Fais fab Divider
Lub zog faib hluav taws xob yog ib qho cuab yeej uas faib lub zog ntawm ib lub teeb liab tso tawm rau hauv ob lossis ntau qhov tso tawm. Nws yog qhov tseem ceeb ntawm impedance converter.
Ø Lub hwj chim faib hluav taws xob puas tuaj yeem thim rov qab los hloov cov khoom sib txuas?
Thaum siv los ua cov khoom siv hluav taws xob, nws tsis tsuas yog yuav tsum muaj kev sib cais siab, tsis tshua muaj yoj piv, tab sis tseem tsom rau qhov yuav tsum tau ua kom muaj zog siab. Xav txog tias cov chaw nres nkoj tso zis ntawm cov kab noj hniav uas nquag siv hluav taws xob sib cais tsis sib xws, yoj sawv ntsug loj; Vim tias lub zog tsis muaj zog ntawm microstrip fais fab splitter, peb tsis pom zoo kom siv lub hwj chim splitter los hloov cov khoom sib txuas.
Cavity Fais Fab Divider
Plaub, kev taw qhia coupler
4.1 Sib
Ø Coupler yog ib hom kev tivthaiv uas faib lub zog ntawm cov teeb liab tawm tswv yim los ntawm cov hluav taws xob thiab cov hlau nplaum sib txuas los ua ib feem ntawm kev sib txuas ntawm qhov kawg tso tawm, thiab cov khoom seem ntawm qhov kawg tso tawm kom tiav cov hluav taws xob faib.
Ø Lub zog faib ntawm lub coupler tsis sib npaug. Kuj tseem hu ua power sampler.
Directional coupler
Directional couplers feem ntau yog siv nrog cov kev taw qhia ntws ntawm microwave teeb liab rau kev ua piv txwv, lub hom phiaj tseem ceeb yog cais thiab cais cov teeb liab, los yog sib xyaw cov teeb liab sib txawv, thaum tsis muaj kev thauj khoom sab hauv, cov kev taw qhia txuas feem ntau yog plaub-chaw nres nkoj network.
Cavity coupler
Nta: Bearing siab zog, tsis tshua muaj kev ua haujlwm.
Yog vim li cas:
1. Cov kab noj hniav yog ntim nrog huab cua, thiab nyob rau hauv txoj kev sib kis, cov xov xwm dissipation tshwm sim los ntawm huab cua nruab nrab yog qis dua.
2. Cov hlua txuas txuas feem ntau yog ua los ntawm tus neeg xyuas pib nrog cov khoom siv hluav taws xob zoo (xws li nyiaj plating rau ntawm tooj liab), thiab cov neeg xyuas pib poob yog qhov tsis txaus ntseeg.
3. Cov kab noj hniav loj loj, ceev cov cua sov dissipation. Nrog lub zog siab.
Attenuator
Ø Lub attenuator yog ob qhov chaw nres nkoj reciprocal
Feem ntau siv attenuators yog absorption attenuators.
Lub coaxial attenuator feem ntau yog siv hauv engineering, suav nrog "π" lossis "T" attenuation network.
Coaxial attenuators feem ntau muaj ob hom kev ruaj khov thiab sib txawv attenuators.
Ø Attenuators feem ntau yog siv los tswj lub zog xa hluav taws xob ntawm microwave teeb liab hauv qhov kev tshawb pom thiab siv lub zog ntau dhau, yog li txuas ntxiv qhov kev ntsuas qhov ntsuas hluav taws xob, xws li lub zog ntsuas hluav taws xob, spectrum analyzers, amplifiers, receivers, thiab lwm yam.
Lub Vev Xaib:https://www.lintratek.com/
#Amplifier 4g #Repeater 4g
衰减器
Ø衰减器是二端口互易元件
Ø衰减器最常用的是吸收式衰减器.
Ø工程中通常使用的是同轴型衰减器，由“π”型或“T”型衰减网络组成.
Ø同轴衰减器通常有固定及可变衰减两种.
Ø衰减器主要用于检测系统中控制微波信号传输能量、消耗超额能量，因耏扩局围，诸如功率计，频谱分析仪，放大器，接收器等。
Post lub sij hawm: Jan-18-2024