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4-9. The dominant mode TEio is propagated in a rectangular waveguide of dimensions a 2.25 cm and b-l cm. Assume an air dielec

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4-9. The dominant mode TEio is propagated in a rectangular waveguide of dimensions a 2.25 cm and b-l cm. Assume an air dielectric with a breakdown gradient of 30 kV/cm and a frequency of 10 GHz. Ther...
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