Ụkpụrụ nke antenna nkwukọrịta na ngwa,
otu esi enweta ma ziga akara ngosi nke ọma maka amplifiers repeater 3g/4g?
Weebụsaịtị:https://www.lintratek.com/
Nke mbụ, ụkpụrụ antenna:
1.1 Nkọwa nke antenna:
Ngwaọrụ nke nwere ike ịgbasa ebili mmiri elektrọnik nke ọma gaa n'otu ebe kpọmkwem n'ime mbara igwe ma ọ bụ nwee ike ịnweta ebili mmiri elektrọnik nke ọma site na otu ebe kpọmkwem n'ime mbara igwe.
1.2 Ọrụ antenna:
Ø Mgbanwe ike - mgbanwe nke ebili mmiri nduzi na ebili mmiri oghere efu; Radiation ntụziaka (nnabata) - nwere kpọmkwem nduzi.
1.3 Ụkpụrụ radieshon nke poolu:
1.4 Paramita Antenna
Paramita radieshọn
Ø Ọkara obosara nke ogwe ike, oke ihu na azụ;
Ø ụdị polarization, ịkpa ókè polarization;
Ø Ihe nduzi, uru antenna;
Ø Isi lobe, nke abụọ lobe, ihe mgbochi akụkụ, enweghị njupụta, ìhè na-agbada…
Paramita sekit
Oke ebili mmiri nke voltaji VSWR, ihe ntụgharị uche Γ, mfu nloghachi RL;
Ø Mbelata ntinye Zin, mfu nnyefe TL;
Ø iche Iso;
Ø Njem nke atọ na-agafe agafe Intermodulation PIM3…
Akụkụ akụkụ nke antenna
Obosara nke Ogwe kwụ ọtọ
Oke ihu na azụ: Na-akọwapụta oke ike e tinyere n'ihu na antenna na ike e tinyere n'azụ n'ime ±30°.
Mmekọrịta dị n'etiti uru na nha antenna na beamwidth
Ka "taya" ahụ na-adị larịị, otú ahụ ka mgbaàmà ahụ si jupụta, otú ahụ ka uru ya si dị elu, otú ahụ ka nha antenna ahụ si amụba, otú ahụ ka obosara ya si dị warara;
Isi ihe ole na ole dị mkpa maka uru nke antenna:
Antenna ahụ bụ ngwaọrụ na-anaghị arụ ọrụ nke ọma, ọ naghịkwa emepụta ike. Uru Antenna bụ naanị ikike itinye ike n'ọrụ nke ọma iji gbasaa ma ọ bụ nata ebili mmiri elektrọnik n'otu ebe kpọmkwem.
Ø A na-enweta uru nke antenna site na nguzozi nke ihe na-eme ka ụda olu dị elu. Ka uru ahụ na-arị elu, otú ahụ ka ogologo antenna ahụ na-adị ogologo. Mee ka uru ahụ dịkwuo elu site na 3dB ma mụbaa olu ahụ okpukpu abụọ.
Ka antenna na-enweta uru dị elu, otú ahụ ka nduzi ahụ ga-esi ka mma, otú ahụ ka ike ahụ ga-esi jupụta, ebe lobe ahụ ga-adị warara.
1.5 Paramita Radiation
Polarization: na-ezo aka na ụzọ ma ọ bụ mgbanwe nke vektọ ubi eletrik n'ime oghere.
1.6 Paramita sekit
Mfu nloghachi
Abụọ, ngwaahịa antenna
2.1 Ụzọ Ịkpọ Aha Antenna:
Ụdị antenna: ODP (eriri efere ntụzịaka n'èzí), OOA (eriri omnidirectional n'èzí), IXD (eriri mkpuchi ụlọ dị n'ime), OCS (eriri abụọ n'èzí), OCA (eriri cluster n'èzí), OYI (eriri Yagi n'èzí), ORA (eriri elu ịtụba n'èzí), IWH (eriri mgbidi dị n'ime ụlọ) na ndị ọzọ.
Ọkara ike n'akụkụ: 032,065,090,105,360 (eriri ọdụ ntọala) 020,030,040,050,060,075,090,120,160,360 (eriri mmegharị)
Ụdị polarization: R (polarization abụọ), V (otu polarization)
Uru: Uru kachasị bụ 21dbi dabere na uru ahụ n'ezie
Ụdị nkwonkwo: D (Isi Din), N (Isi ụdị N), S (Isi SMA), T (Isi TNC) na ndị ọzọ
Ugboro ugboro:
Koodu nkọwapụta: Mkpụrụedemede ndị Rom na-egosi mmepụta nke ngwaahịa ahụ. Mkpụrụedemede na ọnụọgụ ndị a na-egosi Angle dip, ọdịdị, na ozi ndị ọzọ. Ụdị F; Nhazi eletriki V; Mgbanwe eletriki RV dịpụrụ adịpụ
2.2 Antenna ọdụ isi
Antenna Omnidirectional nke nwere eriri ugboro abụọ
Antenna Ugboro Atọ
Antenna Ụlọ
Mgbidi Antenna
Antenna Yagi
Antenna Grid
Antenna Broadband Omnidirectional Log-Periodic Antenna Plate Antenna
3.1 Onye Kewaa Ike
Ihe nkesa ike bụ ngwaọrụ nke na-ekewa ike nke otu ihe mgbaàmà mmepụta n'ime mmepụta abụọ ma ọ bụ karịa. N'ụzọ bụ isi, ọ bụ ihe na-agbanwe impedance.
Ø Enwere ike ịtụgharị ihe nkesa ike iji dochie ihe ngwakọta ahụ?
Mgbe ejiri ya dị ka ihe na-emepụta ihe, ọ bụghị naanị na ọ chọrọ nnukwu ikewapụ onwe ya, oke ebili mmiri dị ala, kamakwa ọ na-elekwasị anya n'ihe achọrọ iji nagide ike dị elu. Ebe ọ bụ na ọdụ ụgbọ mmiri mmepụta nke ihe na-emepụta ike oghere a na-ejikarị eme ihe adabaghị, nnukwu ebili mmiri kwụ ọtọ; N'ihi obere ike iguzogide nke ihe na-emepụta ike microstrip, anyị anaghị akwado iji ihe na-ekewa ike dochie ihe na-agwakọta.
Onye Kewaa Ike Oghere
Anọ, okwu mmeghe nke njikọta
Njikọta 4.1
Ø Njikọta bụ ụdị ihe na-ekesa ike nke mgbaama ntinye site na mpaghara eletriki na njikọ ubi magnet ka ọ bụrụ akụkụ nke mmepụta njedebe njikọ, yana ihe ndị ọzọ nke mmepụta njedebe iji mezue nkesa ike.
Ø Nkesa ike nke njikọ ahụ ekewaghị otu. A makwaara ya dị ka ihe nlele ike.
Njikọ ntụziaka
A na-ejikarị njikọ ntụziaka eme ihe na ntụziaka nke akara microwave maka nlele, isi ihe bụ ikewapụ na ichekwa mgbaàmà ahụ, ma ọ bụ jikọta akara dị iche iche, na enweghị ibu dị n'ime, njikọ ntụziaka na-abụkarị netwọk ọdụ ụgbọ mmiri anọ.
Njikọ oghere
Atụmatụ: Na-ebu ike dị elu, arụmọrụ mfu dị ala.
Ihe kpatara ya:
1. Oghere ahụ jupụtara na ikuku, na usoro nnyefe ahụ, mgbasa ozi nke ikuku na-akpata dị ala nke ukwuu.
2. A na-ejikarị eriri waya ejikọtara ya na ihe na-eduzi eletriki nke nwere ezigbo ike eletrik (dịka mkpuchi ọlaọcha n'elu ọla kọpa), ihe na-efunahụ ihe na-eduzi ya enweghị isi.
3. Oke oghere buru ibu, okpomọkụ na-agbawa ngwa ngwa. Na-eguzogide ike dị elu.
Ihe mgbochi
Ø Ihe na-emechi ihe bụ ihe nwere ọdụ abụọ nke na-agbanwe agbanwe
Ihe mgbochi kachasị eji eme ihe bụ ihe mgbochi absorption.
A na-ejikarị ihe na-egbochi coaxial eme ihe n'ọrụ injinia, nke nwere netwọk mbelata "π" ma ọ bụ "T".
Ndị na-eme ka ihe na-agbagharị agbagharị na-enwekarị ụdị ihe na-agbagharị agbagharị abụọ.
Ø A na-ejikarị ihe ndị na-eme ka ihe na-agbachi nkịtị achịkwa ike nnyefe nke akara microwave na sistemụ nchọpụta ma na-eri oke ike, si otú a na-agbatị oke nha akara ike, dịka mita ike, ihe nyocha spectrum, ihe na-eme ka ihe na-agbagharị agbagharị, ihe nnata, wdg.
Weebụsaịtị:https://www.lintratek.com/
#Amplifier 4g #Onye na-emegharị ihe 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、消耗超额荽量，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。
Oge ozi: Jenụwarị-18-2024