Ihame rya antenne yitumanaho nibikoresho,
nigute wakwakira neza no kohereza ibimenyetso kuri 3g / 4g ibimenyetso bisubiramo ibyongera？
Urubuga:https://www.lintratek.com/
Icya mbere, ihame rya antene:
1.1 Ibisobanuro bya antenne:
Igikoresho gishobora gukwirakwiza neza amashanyarazi yumurongo wa cyerekezo cyihariye mumwanya cyangwa gishobora kwakira neza amashanyarazi ya magnetiki avuye mubyerekezo runaka mumwanya.
1.2 Imikorere ya Antenna:
Convers Guhindura ingufu - guhindura imiyoboro iyobowe nu mwanya wubusa; Imirasire yicyerekezo (kwakirwa) - ifite icyerekezo runaka.
1.3 Ihame ryimirasire ya Antenna ：
1.4 Ibipimo bya Antenna
Imirasire
Ø Igice cya kabiri cy'ingufu z'ubugari, imbere kugeza inyuma;
Mode uburyo bwa polarisiyonike, ivangura ryambukiranya imipaka;
Factor Directivity factor, antenna yunguka;
Obe Umwanya nyamukuru, icyiciro cya kabiri, guhagarika sidelobe, kuzuza zeru, kumanura ibiti…
Ikizunguruka
Umuvuduko uhagaze wikigereranyo cya VSWR, coefficente yerekana Γ, gutakaza igihombo RL;
Kwinjiza inzitizi Zin, gutakaza TL;
Ø kwigunga Iso;
Order Icyiciro cya gatatu cyiza Intermodulation PIM3…
Antenna kuruhande
Ubugari bwa Horizontal
Ikigereranyo cyimbere ninyuma: Kugaragaza ikigereranyo cyingufu zerekejwe imbere na antenne nimbaraga zisubira inyuma muri ± 30 °.
Isano iri hagati yinyungu nubunini bwa antenne na beamwidth
Kuringaniza "ipine", uko ibimenyetso byibanze cyane, niko inyungu nyinshi, nini ya antenne nini, kandi ikagabanya urumuri;
Ingingo nke zingenzi za antenna yunguka:
Antenna ni igikoresho cyoroshye kandi ntishobora gutanga ingufu. Inyungu ya Antenna nubushobozi bwo gukusanya imbaraga kugirango imirase cyangwa yakire amashanyarazi ya electronique mu cyerekezo runaka.
Gain Inyungu ya antenne iterwa no hejuru ya viboters. Iyo inyungu nyinshi, antenne ndende. Ongera inyungu kuri 3dB hanyuma wikubye kabiri amajwi.
Iyo antenne yungutse, niko kuyobora neza, niko imbaraga nyinshi, hamwe na lobe.
1.5 Ibipimo by'imirase
Polarisiyasi: bivuga inzira cyangwa ihinduka ryumuriro wamashanyarazi mumwanya.
1.6 Ibipimo byumuzingi
Garuka igihombo
Babiri, ibicuruzwa bya antenne
2.1 Uburyo bwo Kwita Antenna ：
Ibyiciro bya Antenna: ODP (antenne yerekana icyerekezo cyo hanze), OOA (antenne yo hanze), IXD (antenne yo mu nzu), OCS (antenna yo hanze) antenne yubuso), IWH (urukuta rwimbere rwinjizwamo antenne) nibindi.
Igice cya kabiri cy'ingufu Inguni: 032,065,090,105,360 (antenne ya sitasiyo ya sitasiyo) 020,030,040,050,060,075.090.120.160.360 (antenna isubiramo)
Uburyo bwa polarisiyasi: R (polarisiyasi ebyiri), V (polarisiyasi imwe)
Inyungu: Agaciro ntarengwa ni 21dbi ukurikije agaciro nyako
Ubwoko buhuriweho: D (Umutwe Din), N (N-umutwe wumutwe), S (umutwe wa SMA), T (umutwe wa TNC) nibindi
Itsinda ryinshyi:
Kode yihariye: Inyuguti z'Abaroma zerekana ibisekuruza byibicuruzwa. Inyuguti nimibare ikurikira byerekana dip Inguni, imiterere, nandi makuru. Ubwoko bwa F; V kugenzura amashanyarazi; RV ya kure
2.2 Sitasiyo Yibanze Antenna
Antenna Yerekezo Yombi-Antenna Yumwanya-Frequency Antenna
Antenna Yinshuro eshatu
Antenna
Urukuta rwa Antenna
Yagi Antenna
Grid Antenna
Umuyoboro mugari Omnidirectional Antenna Log-Periodic Antenna Isahani Antenna
3.1 Igabana imbaraga
Imbaraga zigabanya ni igikoresho kigabanya ingufu zicyapa kimwe gisohoka mubice bibiri cyangwa byinshi. Nubusanzwe ni impedance ihindura.
Ø Ese amashanyarazi ashobora guhindurwa kugirango asimbuze imashini?
Iyo ikoreshejwe nka synthesizer, ntibisaba gusa kwigunga cyane, igipimo gike gihagaze, ariko nanone yibanda kubisabwa kugirango uhangane nimbaraga nyinshi. Urebye ko ibyambu bisohoka mubisanzwe bikoreshwa mumashanyarazi bidahuye, binini bihagaze; Kuberako imbaraga nke zirwanya microstrip power splitter, ntabwo dushishikarizwa gukoresha amashanyarazi kugirango asimbuze imashini.
Cavity Power Divider
Icya kane, intangiriro
4.1 Abashakanye
Oup Coupler nubwoko bwibintu bikwirakwiza ingufu zinjiza zinjira binyuze mumashanyarazi hamwe na magnetiki yumurima uhuza kugirango ube igice cyumusozo wanyuma, nibindi bisohoka bisohoka kugirango urangize gukwirakwiza amashanyarazi.
Distribution Gukwirakwiza ingufu za coupler ntabwo bigabanijwe kimwe. Azwi kandi nka power sampler.
Icyerekezo cyerekezo
Icyerekezo gifatika gikoreshwa cyane hamwe nicyerekezo cyerekanwe cyerekana ibimenyetso bya microwave yo gutoranya, intego nyamukuru nugutandukanya no gutandukanya ibimenyetso, cyangwa guhinduranya kuvanga ibimenyetso bitandukanye, mugihe hatabayeho umutwaro wimbere, guhuza icyerekezo akenshi ni umuyoboro wibyambu bine.
Cavity coupler
Ibiranga: Gutwara imbaraga nyinshi, imikorere mike yo gutakaza.
Impamvu:
1. Urwobo rwuzuyemo umwuka, kandi mugihe cyo kohereza, gukwirakwiza itangazamakuru guterwa nikirere kiri hasi cyane.
2.
3. Ingano nini ya cavity, ubushyuhe bwihuse. Ihangane imbaraga nyinshi.
Attenuator
Atenuator ni ibyambu bibiri byuzuzanya
Byakunze gukoreshwa cyane ni attenuator.
Coaxial attenuator isanzwe ikoreshwa mubuhanga, igizwe numuyoboro wa “π” cyangwa “T”.
Coaxial attenuator mubisanzwe ifite ubwoko bubiri bwimikorere kandi ihindagurika.
Ø Attenuator ikoreshwa cyane cyane mugucunga ingufu zo gukwirakwiza ibimenyetso bya microwave muri sisitemu yo gutahura no gukoresha ingufu zirenze urugero, bityo bikongerera imbaraga imbaraga zo gupima ibimenyetso, nka metero z'amashanyarazi, abasesengura ibintu, ibyuma byongera imbaraga, imashini zakira, n'ibindi.
Urubuga:https://www.lintratek.com/
#Amplifier 4g #Gusubiramo 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，因而扩展信号测量的动态范围，诸如功率计，频谱分析仪，放大器，接收器等。
Igihe cyo kohereza: Mutarama-18-2024