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Thursday, May 12, 2016

MicrowaveAntenna

Alignment

HUAWEI TECHNOLOGIES CO., LTD.

www.huawei.com

Wang FuzhongTransmission EngineeringDept.

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Tools and Resources for antenna Alignment

 Riggers for antenna alignment: 4person, 2 for each site

 Multimeter: 2pcs, one for each site

 Laptop: 1, for Radio configuration and RSL check

 Engineering Order ire handset

 Spanner !rench"

 #inoscopic

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Antenna Radial Pattern Envelope (RPE)

Top or side View of the antenna (RPE)

Main Beam

1st ide !o"e

The theoretic di#erence o$the gains "etween main

"eam with 1st side %o"e&1' to 20d(.

During panning, )$ the di#erence "etween *! with o"+ectie is %ess than1'd(, it means the main "eam a%ready touched. -ust do the ne/tuning.

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Antenna Radiation Patterns Envelope (RPE)

Main "eam

1st ide!o"e

Boresight View

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Antenna Radiation Patterns Envelope (RPE)

Side

View

Top

ViewMain beam

1st ide!o"e

Main beam

Main #eam

$ore%ig&t'iew

HPBW

FNBW: First Null BeamWidt

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Antenna AlignmentPan the antenna )* Multi+meter L-.

/$04&

*)34

1st ide!o"e

Main "eam

zimuth

O3

!ulti"!eter 

R##$ or A%&

'oltage

$

   )   F   4   2   (   !   E

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Antenna panning (Hori*ontal)

Top

View

Main beam!ain +eam

,st #ide -o+e

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Antenna Panning ('ertical)

SideView

Main beam!ain +eam

,st #ide -o+e

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Antenna Alignment (Hori*ontal)

!isaligned Proper Aligned

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Antenna Alignment

Line 7+7 represents the a8imuth tracking path of a properl* aligned antenna0

.he main )eam is at point 2, and the first side lo)e at points 1 and $0

#oresight ie9 of 78imuth .racking

Paths for ifferent Eleations Signal Leels for Each .rack

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Antenna Alignment (p and o.n)

(e)ecting Gro*n" or Sec*lar +lane

5p and Down Misa%igned

(e)ecting Gro*n" or Sec*lar +lane

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Antenna Alignment (p and o.n)

Aligned properl/

(e)ecting Gro*n" or Sec*lar +lane

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#teps for !W $nstallation  -heck R;. !Read* for .elecom"

 Safet* check

 7ntenna and Outdoor 9orks first under good 9eather condition

 

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