Ụkpụrụ nke antenna nkwurịta okwu na ngwa,
kedu ka esi enweta ma bufee mgbaama maka ihe nkwugharị mgbama 3g/4g?
Weebụsaịtị:https://www.lintratek.com/
Nke mbụ, ụkpụrụ antenna:
1.1 Nkọwa nke antenna:
Ngwaọrụ nwere ike ịgbanye ebili mmiri electromagnetic gaa n'otu ebe dị na mbara igwe ma ọ bụ nwee ike nweta ebili mmiri electromagnetic nke ọma site na ntụzịaka dị na mbara igwe.
1.2 Ọrụ antenna:
Ø Ntughari ike - ntụgharị nke ebili mmiri na-eduzi na ohere ohere efu; radieshon ntụziaka (nnabata) - nwere ụfọdụ ntụziaka.
1.3 ụkpụrụ radieshon Antenna:
1.4 Paramita antenna
Oke radieshon
Ø Ọkara obosara ike ọkụ, oke n'ihu ruo azụ;
Ø ọnọdụ polarization, ịkpa oke polarization cross;
Ø Ihe ntụzịaka, uru antenna;
Ø Main lobe, lobe secondary, sidelobe suppression, zero fill, beam downtilt…
Oke sekit
Voltage ebili mmiri ebili mmiri VSWR, ntụgharị ntụgharị Γ, nloghachi ọnwụ RL;
Ø Ntinye ntinye Zin, nkwụsị nnyefe TL;
Ø iche iche;
Ø Na-agafe agafe Intermodulation PIM3…
Antenna sidelobe
Obosara okirikiri kwụ ọtọ
N'ihu na azụ: Na-akọwapụta oke nke ike na-atụgharị na mpio yana ike na-enwu azụ n'ime ± 30°.
Mmekọrịta dị n'etiti uru na nha antenna na obosara
N'ịkwado " taya" ahụ, ka mgbama ahụ na-etinyekwu uche, ka uru ahụ dị elu, na-ebuwanye ibu nke antenna, na-adịwanye warara obosara;
Isi ihe ole na ole nke uru antenna:
antenna bụ ngwaọrụ na-agafe agafe na enweghị ike ịmepụta ike. Uru antenna bụ naanị ikike itinye uche nke ọma n'ike iji kpalite ma ọ bụ nata ebili mmiri electromagnetic n'otu akụkụ.
Ø A na-enweta uru nke antenna site n'ịdị elu nke ndị na-ama jijiji. Nke dị elu karịa uru, ogologo antenna ogologo. Welite uru site na 3dB wee jiri okpukpu abụọ mee ụda.
Uru nke antenna dị elu, ka ọ na-eduzi ya ka mma, ka ike na-etinyekwu uche, na lobe na-adịwanye warara.
1.5 Oke radieshon
Polarization: na-ezo aka trajectory ma ọ bụ mgbanwe nke ọkụ eletrik vector na mbara.
1.6 okirikiri okirikiri
Weghachite mfu
Abụọ, ngwaahịa antenna
2.1 Ụzọ ịkpọ aha antenna:
Antenna edemede: ODP (n'èzí ntụziaka efere n'èzí), OOA (n'èzí omnidirectional antenna), IXD (ime ụlọ uko ụlọ antenna), OCS (n'èzí bidirectional antenna), OCA (n'èzí ụyọkọ antenna), OYI (n'èzí Yagi antenna), ORA (n'èzí atụba). antenna elu), IWH (mgbidi dị n'ime ụlọ) na ihe ndị ọzọ.
Ọkara ike n'akuku: 032,065,090,105,360 (base ọdụ antenna) 020,030,040,050,060,075,090,120,160,360 (na-emegharị antenna)
Ụdị polarization: R (polarization abụọ), V (otu polarization)
Uru: Uru kachasị bụ 21dbi dabere na uru ọ bara
Ụdị nkwonkwo: D (Din isi), N (ụdị isi), S (SMA isi), T (TNC isi) na na
Ugboro ugboro:
Koodu nkọwapụta: Akwụkwọ ozi Rome na-egosi ọgbọ nke ngwaahịa ahụ. Akwụkwọ ozi na ọnụọgụgụ ndị a na-egosi akụkụ mbelata, ọdịdị na ozi ndị ọzọ. Ụdị F; V ụkpụrụ eletrik; Igwe ọkụ eletrik RV dịpụrụ adịpụ
2.2 Base Station Antenna
Antenna Omnidirectional Antenna Dual-frequency Antenna
Antenna-Ugboro atọ
Antenna n'uko
Antenna arụnyere mgbidi
Yagi Antenna
Antenna Grid
Broadband Omnidirectional Antenna Log-periodic Antenna Plate Antenna
3.1 Ike nkesa
Ihe nkesa ike bụ ngwaọrụ na-ekewa ike nke otu mgbaama mmepụta n'ime ụzọ abụọ ma ọ bụ karịa. Ọ bụ n'ezie ihe ntụgharị impedance.
Ø Enwere ike gbanwee ike nkesa iji dochie ihe nchikota?
Mgbe ejiri ya dị ka synthesizer, ọ bụghị naanị na-achọ oke oke, oke ebili mmiri dị ala, ma na-elekwasị anya na ihe a chọrọ iji nagide ike dị elu. N'ịtụle na ọdụ ụgbọ mmiri mmepụta nke ike nkesa oghere a na-ejikarị eme ihe adịghị adabara, nnukwu ebili mmiri na-eguzo; N'ihi nkwụsị ike dị ala nke microstrip ike splitter, anyị anaghị akwado iji ike nkewa iji dochie ihe nchịkọta.
Nkesa ike oghere
Anọ, mmeghe nke coupler
4.1 Njikọta
Ø Coupler bụ ụdị ihe dị iche iche nke na-ekesa ike nke mgbaàmà ntinye site na ọkụ eletrik na oghere magnet ka ọ bụrụ akụkụ nke njedebe njedebe, na ihe ndị ọzọ na-emepụta ihe na-emepụta iji mechaa nkesa ike.
Ø Ike nkesa nke di na nwunye anaghị ekewa nha nha. A makwaara dị ka ike sampler.
Njikọ ụzọ
A na-ejikarị ndị na-emekọ ihe na-eme ihe n'ụzọ a kapịrị ọnụ nke mgbaàmà microwave maka nlele, isi ihe kpatara ya bụ ikewapụ na ikewapụ mgbaàmà ahụ, ma ọ bụ na-ejikọta akara dị iche iche, na-enweghị ibu dị n'ime, ntụziaka ntụziaka na-abụkarị netwọk ọdụ ụgbọ mmiri anọ.
Njikọ oghere
Atụmatụ: Inwe ike dị elu, obere arụmọrụ efu.
Ihe kpatara ya:
1. Oghere ahụ jupụtara na ikuku, na n'ime usoro mgbasa ozi, mgbasa ozi mgbasa ozi nke ikuku ikuku na-eme ka ọ dị ntakịrị.
2. A na-ejikarị eriri waya jikọtara ya na onye na-eduzi eletrik nwere ezigbo ọkụ eletrik (dị ka ịkwanye ọlaọcha n'elu ọla kọpa), na ọnwụ onye nduzi bụ isi ihe na-adịghị mma.
3. Nnukwu oghere oghere, nkwụsị ọkụ ngwa ngwa. Nagide ike dị elu.
Attenuator
Ø The attenuator bụ ihe ngbanwe nke ọdụ ụgbọ mmiri abụọ
Ndị attenuators a na-ejikarị eme ihe bụ absorption attenuators.
A na-ejikarị attenuator coaxial eme ihe na injinia, nke nwere netwọk attenuation "π" ma ọ bụ "T".
Coaxial attenuators na-enwekarị ụdị abụọ nke attenuators na-agbanwe agbanwe.
Ø A na-ejikarị ndị na-eme ihe iji chịkwaa ike nnyefe nke akara ngwa ndakwa nri na sistemụ nchọpụta ma na-eri oke ike, si otú a na-agbatị oke nha nha nke mgbaàmà, dị ka mita ike, ndị na-enyocha ụdịdị, amplifiers, ndị na-anata, wdg.
Weebụsaịtị:https://www.lintratek.com/
#Ampilifaya 4g #4g ugboro ugboro
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、消耗超额扃量，因耷的手屋中控制微波信范围，诸如功率计，频谱分析仪，放大器，接收器等。
Oge nzipu: Jan-18-2024