Analytical Expression for Dispersion Properties of Circular Core Dielectric Waveguide without computing (d^2 ß)/(dk^2 ) Numerically

Vol.7 No.3

Year: 2012

Issue: February-April      

Title: Analytical Expression for Dispersion Properties of Circular Core Dielectric Waveguide without computing (d^2 ß)/(dk^2 ) Numerically   

Author Name: S. K. Raghuwanshi, S. Kumar   

Synopsis:   

Waveguide dispersion can be tailored but not the material dispersion. Hence the total dispersion can be shifted at any desired band by adjusting the waveguide dispersion. Waveguide dispersion is proportional to  and need to be found numerically. In this paper we have tried to compute analytical expression for  in terms of .  To compute  accurately,  should be accurate enough up to  decimal point. This constraint sometimes generates the error in calculation of waveguide dispersion. In this paper we have tried to compute analytical expression for  in terms of . It reveals that we can compute waveguide dispersion enough accurately for various modes having known only -