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Unformatted text preview: such that design frequency is 10% higher than the cutoff frequency for the TE 10 mode, while being 10% lower than the cutoff frequency for the next higherorder mode. 4. A symmetric dielectric slab waveguide has a slab thickness d =10 m, with n 1 =1.48 and n 2 =1.45. If the operating wavelength m, what modes will propagate? 5. n 1 =1.45, n 2 =1.50 and d =10 m in a symmetric slab waveguide (a)what is the phase velocity of the m =1,TE or TM mode at cutoff? (b)what is the phase velocity of the m =2,TE or TM mode at cutoff?...
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