Assignment6 - such that design frequency is 10% higher than...

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EC501_Assignment(2008) (On waveguides) 1.A parallel-plate waveguide is known to have a cutoff wavelength for the m =1 TE & TM modes of c1 =0.4cm. The guide is operated at wavelength  mm. How many modes propagate? (a) Over what range of frequencies will guide operate single mode? (b)Over what range frequency range will the guide support both TE 10 and TE 01 others? 3.An air-filled rectangular waveguide is to be constructed for single-mode operation at 15GHz.Specify the guide dimensions a and b
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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 higher-order 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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