Gsm system antenna

4,009 views

Published on

Electrical properties
Operation Frequency Band
Input impedance
VSWR
Polarization
Gain
Radiation Pattern
Horizontal/Vertical beamwidth
Downtilt
Front/back ratio
Sidelobe suppression and null filling
Power capability
3rd order Intermodulation
Insulation
Mechanical properties
Size
Weight
Radome material
Appearance and color
Working temperature
Storage termperature
Windload
Connector types
Package Size
Lightening

Published in: Education, Business, Technology

Gsm system antenna

  1. 1. Telecom TutorialsMonday, June 03, 2013www.tempustelcosys.comGSM System Antenna
  2. 2. Monday, June 03, 2013www.tempustelcosys.comBase station antenna specification andmeanings.Antenna types and trends.
  3. 3. Monday, June 03, 2013www.tempustelcosys.comBlah blahblah bl ah
  4. 4. Monday, June 03, 2013www.tempustelcosys.comElectrical propertiesOperation Frequency BandInput impedanceVSWRPolarizationGainRadiation PatternHorizontal/Vertical beamwidthDowntiltFront/back ratioSidelobe suppression and null fillingPower capability3rd order IntermodulationInsulationMechanical propertiesSizeWeightRadome materialAppearance and colorWorking temperatureStorage termperatureWindloadConnector typesPackage SizeLightening
  5. 5. Monday, June 03, 2013www.tempustelcosys.com
  6. 6. Monday, June 03, 2013www.tempustelcosys.comWavelength1/2 Wavelength1/4 Wavelength1/4 Wavelength1/2 WavelengthDipole1800MHz :166mm900MHz :333mm
  7. 7. Monday, June 03, 2013www.tempustelcosys.com1个 dipoleReceived power:1mWMultiple dipole matrixReceived power:4 mWGAIN= 10log(4mW/1mW) = 6dBd
  8. 8. Monday, June 03, 2013www.tempustelcosys.comGain=10log(8mW/1mW) = 9dBi“Sector antenna”Received power:8mW“Omnidirectional array”Received power:1mW(OverlookAntenna
  9. 9. GSM 900 : 890-960MHzGSM 1800 : 1710-1880MHzGSM dual band : 890-960MHz & 1710-1880MHzE-GSM 824-960MHz,1710-1900MHzMonday, June 03, 2013www.tempustelcosys.com
  10. 10. Monday, June 03, 2013www.tempustelcosys.com( BANDWIDTH )= 960 - 890 = 70MHzOptimum 1/2 wavelengthfor dipole at 925MHzat960MHzAntennaDipoleat890MHz
  11. 11. Monday, June 03, 2013www.tempustelcosys.com50Cable50 ohmsAntenna50 ohms
  12. 12. Monday, June 03, 2013www.tempustelcosys.com9.5 W80ohm50 ohmsForward: 10WBackward: 0.5WReturn Loss: - 10log(10/0.5) =- 13dB
  13. 13. Monday, June 03, 2013www.tempustelcosys.comRL=-20lg| |VSWR=1+| |/1- | |VSWR 1.5
  14. 14. Monday, June 03, 2013www.tempustelcosys.comVertical Horizontal+ 45degree slant - 45degree slant
  15. 15. Monday, June 03, 2013www.tempustelcosys.comV/H (Vertical/Horizontal) Slant (+/- 45°)
  16. 16. Monday, June 03, 2013www.tempustelcosys.comDipoledBi= dBd+2.15dB2.15dBIsotropic
  17. 17. Monday, June 03, 2013www.tempustelcosys.com
  18. 18. Monday, June 03, 2013www.tempustelcosys.com120° (eg) PeakPeak - 10dBPeak - 10dB10dB Beamwidth60° (eg) PeakPeak - 3dBPeak - 3dB3dB Beamwidth
  19. 19. Monday, June 03, 2013www.tempustelcosys.comNon down tilt Electronic downtilt Mechanicaldowntilt
  20. 20. Monday, June 03, 2013www.tempustelcosys.com
  21. 21. Ratio of maximum mainlobe to maximum sidelobe.Monday, June 03, 2013www.tempustelcosys.comF/B = 10 log(FP/BP) typically : 25dBBack power Front power
  22. 22. • Continuous :25-1500watts• Depends on the carriers number and the power of the carriersMonday, June 03, 2013www.tempustelcosys.com
  23. 23. The intermodulation may cause the interference of thesystem,so the intermodulation properties of connectors,cables and antennas should be considered.Monday, June 03, 2013www.tempustelcosys.com
  24. 24. Monday, June 03, 2013www.tempustelcosys.com1000mW ( 1W) 1mW10log(1000mW/1mW) = 30dB
  25. 25. Monday, June 03, 2013www.tempustelcosys.com
  26. 26. • L W H• Length:connected with vertical bandwidth and gain• Width:connected with horizontal bandwidth• Height:connected with techniques adoptedMonday, June 03, 2013www.tempustelcosys.com
  27. 27. Affecting transmission and deployMonday, June 03, 2013www.tempustelcosys.com
  28. 28. • PVC, Fiberglass• Anti-temperature, water-proof,anti-aging,weatherresistantMonday, June 03, 2013www.tempustelcosys.com
  29. 29. Good-looking, environment-protectingMonday, June 03, 2013www.tempustelcosys.com
  30. 30. Monday, June 03, 2013www.tempustelcosys.com
  31. 31. Typical range:-40°C — +70°CMonday, June 03, 2013www.tempustelcosys.com
  32. 32. Typically:-40°C — +70°CMonday, June 03, 2013www.tempustelcosys.com
  33. 33. Eg: 83N at 160 km/hMonday, June 03, 2013www.tempustelcosys.com
  34. 34. • 7/16”DIN,N,SMA• femaleMonday, June 03, 2013www.tempustelcosys.com
  35. 35. Monday, June 03, 2013www.tempustelcosys.com• Direct Ground
  36. 36. Frequency band: GSM900, GSM1800, GSM900/1800Polarization: Vertical, Horizontal, ±45º linearpolarization, circle polarizationPattern: Omni-directional, directionalDowntilt: Non, mechanical, electronic adjustment,remote controlFunction: Transmission, receiving, transceivingMonday, June 03, 2013www.tempustelcosys.com
  37. 37. Monday, June 03, 2013www.tempustelcosys.comBroad bandMultifunctionalHigh Integrity
  38. 38. Monday, June 03, 2013www.tempustelcosys.com
  39. 39. – 870-960MHz and 1710-1880MHz– Extended band option with 806-960MHz– Dual slant ±45º polarisation– 65º horizontal beamwidth– Band independent Teletilt™ control– 17dBi gain in both bands– Diplexed or Non-Diplexed versions– Mechanical downtilt mounting optionMonday, June 03, 2013www.tempustelcosys.com
  40. 40. Monday, June 03, 2013www.tempustelcosys.com7/8” MAIN FEEDER
  41. 41. Monday, June 03, 2013www.tempustelcosys.com1/2” (JUMPER CABLE)
  42. 42. Monday, June 03, 2013www.tempustelcosys.com7/16”DIN-F(DIN CONNECTOR)7/16”DIN-M(DIN & N CONNECTOR)
  43. 43. Monday, June 03, 2013www.tempustelcosys.comRf port 2Grounding
  44. 44. •Trimming Tool or Hand Tool Kit•Clamp•Earthing Kit•Wall Glands•Hoisting Stocking•Universal Ground BarMonday, June 03, 2013www.tempustelcosys.com
  45. 45. Monday, June 03, 2013www.tempustelcosys.comAntenna7/16 Din Connector7/8“ CableGrounding1/2“ JumperCabinetEMPGrounding clipGrounding bar1/2 ClampTower TopAmplifier7/8“ CableMachine house1/2 Jumper

×