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  • What is space wave propagation? State the factors which limit its range of propagation. Derive an expression for the maximum line of sight distance between two antennas for space wave propagation.   <div style="float:left; width:4

What is space wave propagation? State the factors which limit its range of propagation. Derive an expression for the maximum line of sight distance between two antennas for space wave propagation.

 

 

 

 
 
 
 
 

Answers (1)

\rightarrow A space wave travels in a straight line from transmitting antenna to the receiving antennae

\rightarrow The curvature of the earth and large height required for receiving antennae are limiting factors.

R^{2}+d{_{T}}^{2}=(h_{T}+R)^{2}+R^{2}

d{_{T}}^{2}= h_{T}^{2}+2h{_{T}}{R}+R^{2}

Since 2h{_{T}}{R}>>h{_{T}}^{2}

d{_{T}}^{2}= 2h{_{T}}{R}

Similarly d{_{R}}^{2}=2h_{R}R

d_{m}=d_{T}+d_{R}=\sqrt{2h_{T}R}+\sqrt{2h_{R}R}

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