design of microwave

7/21/2019 Design of Microwave

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Design of Microwave

Communication Link

Esguerra, Gieselle B.

Laguzar, Venice R.

Oco, orman !. "r.


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OBJECTIVES# To provide the best solution to be used

in attaining an efective microwavecommunication link or the expansion oGLOBE Compan !

# To evaluate the parameters that willmake the two network microwavecommunication link sstem compatible

to attain reliabilit and e"cienc !# To identi the set o e#uipment to beused to achieve a highl reliablemicrowave communication link in terms

o setting and eatures!


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OVERALL DESIGN

DESCRIPTION

A Double-Hop Full-Duplex AnalogMicrowave Communication Link

from Brgy. Don Boco! "arana#ue

to $an Critobal! $an "ablo


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Existing Design$ite A $ite B

# $arana#ue

# %&m tall

# Los Ba'os( Laguna

# )&m tall

$ite C

# *an Cristobal( *an $ablo# %&m tall


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Frequency Selection# The operating( low band and high bang

re#uencies are selected based on the +TC and,T- considerations!


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Frequency Plans

# The next slide shows the summar o the

re#uencies used or this link! The upper andlower re#uencies are given b the clientcompan as well as the channel capacit and theradio used!


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Frequency PlansFrequency Band 7.275 GHz

Frequency Range 7.128 7.289 GHz

Low Band Range &.128 7.275 Ghz

High Band Range 7.275 7.289 GHz

Channel Capacity STM-1 / 155 Mbps

Configuration 1+0

Channel Spacing 7Mhz

Duplex Spacing 80Mhz

Channel 23

Modulation 256QAM

Multiplexing TDM


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Site SelectionBrg! *an.ntonio(

*an $edro(Laguna

Brg!/aondon

( Los

Ba'os

01!1km


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PATH PROFILEPath Elevations

Site Latitude Longitude Elevation

Narra Rd., South

Peak, Brgy. SanAntonio, San Pedro,

Laguna

14.351667 N 121.03366 E 70.820

Maligay St.

Junction, Brgy.Mayondon, Los

Baos, Laguna

14.18434 N 121.23876 E 16.57


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SAN PEDRO-LOS BAOS LINK

Geographical Condition

PARAMETERS SITE A SITE B

Path Length 28.8km

Path Elevation 70.820 16.57

Azimuth 490.06528

Longitude 121.03366 E 121.23876 E

Latitude 14.351667 N 14.18434 N

PARAMETERS SITE A SITE B

Path Length 28.8km

Path Elevation 70.820 16.57

Azimuth 490.06528

Longitude 121.03366 E 121.23876 E

Latitude 14.351667 N 14.18434 N


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Path Profile and Fresnel Zone


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Reflection Points


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Reflection Points


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Set of Equipments# .ntenna( 2adio( and 3aveguide are made b

An%rew


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Attenuation and Losses

ParametersLow Band

(7.128GHz)

High Band

(7.289GHz)

Free Space Loss 138.6472036 dB 138.8412088 dB

Oxygen Absorption 0.187960987 dB 0.188623942 dB

Water Vapor Absorption 0.140413444 dB 0.147313681 dB


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Link BudgetParameters Low Band Frequency High Band Frequency

Radio Po 23.00 dBm 23.00 dBmConnector Loss 0.01 dB 0.01 dB

Waveguide Loss 1.47 dB 1.47 dB

Connector Loss 0.01 dB 0.01 dB

Antenna Gain 47.7 dBi 48.5 dBiFree Space Loss 138.5dB 138.84dB

Ao 0.19 dB 0.19 dB

AH2O 0.14 dB 0.15 dB

Antenna Misalignment 0.5 dB 0.5 dBAntenna Gain 47.7 dBi 48.5 dBi


Waveguide Loss 3.33 dB 3.33 dB



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Link Budget for Low Band Frequency


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Link Budget for High Band Frequency


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Fade Margins

FADE MARGIN LOW BAND FREQ HIGH BAND FREQ

Objective 50.27025 dB 50.36725 dB

Thermal 50.58830 dB 51.98673 dB

Dispersive 50 dB 50 dB

Flat 50.58830 dB 51.98673 dB

Composite 44.11917 dB 44.39748 dB


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System UnavailabilityReliability Calculation Low Band Freq High Band Freq

Non-Diversity 9.29384E-07 6.88735E-07

K-Q 5.24225E-08 5.05042E-08

K-Q with TerrainToughness

1.86478E-09 1.79654E-09

Vigants-Barnett 4.6345E-06 4.445E-06


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System ReliabilityReliability Calculation Low Band Frequency High Band Frequency

Non-Diversity 99.99990706% 99.99993113%

K-Q 99.9999476% 99.9999495%

K-Q with TerrainToughness

99.99999982% 99.99999983%

Vigants-Barnett 99.99953655% 99.9995555%


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System Reliability with

DiversityReliability Calculation Low Band Frequency High Band Frequency

Vigants-Barnett 99.99999558% 99.999999559%


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# E+4

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