Calculation of Diffraction Coefficient.

Keyword

knife edge,Clearance Coefficient,Diffraction Loss, Fresnel Integrals,Fresnel Zone,Obstacle gain,Diffracted Wave,Direct Wave,Diffraction Coefficient,Received Power.

Reference

[1]:池上文夫:『応用電波工学』,コロナ社,pp.33,1985.
[2]:後藤尚久・新井宏之:『電波工学』,昭晃堂,pp.98,1992.
[3]:Milton Abramowitz and Irene A.Stegun: Handbook of Mathematical Functions with Formulas,Graphs,and Mathematical Tables,pp.300,Issued June 1964 Tenth Printing,December 1872,with corrections.

Remarks

・ν=H*(2/λ*(1/d1+1/d2))^0.5.
・C(ν)=∫[0-ν]cos(π*ν^2/2)・dν.
・S(ν)=∫[0-ν]sin(π*ν^2/2)・dν.
・|E/E0|=2^0.5/2*((1/2+C(ν))^2+(1/2+S(ν))^2)^0.5.
・The influence of ground reflected wave is disregarded in this calculation.

History

・2014/07/31:Layout change.
・2010/01/23:Upload.