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Application: TE/TM waves in strip lines. A parallel plate waveguide is made of two wide strips, separated by a fiberglass sheet d = 0.5 mm thick which has a relative permittivity of 3.5. Neglect any effects due to the edges of the strips (that is, assume the strips are infinitely wide) and calculate:
(a) The lowest TM mode possible.
(b) The lowest TE mode possible.
(c) If a wave at twice the lowest TE cutoff frequency propagates along the waveguide, calculate the wave impedance for the TE and TM modes and compare with the wave impedance for TEM modes.
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a steady-flow compressor is used to compress helium from 15 psia and 70of at the inlet to 200 psia and 600of at the
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For a pressure difference of 0.53 psi across the orifice, calculate the volume flow rate of kerosene.
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two oils are tested to establish their viscosity index. oil a and oil b have their viscosity measured at temperatures
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Define and identify unique characteristics of the items below: Abrasive Machining, Honing, Lapping, Surface Grinding, Centerless Grinding.
F17-16. The 20@kg sphere rolls down the inclined plane without slipping. Determine the angular acceleration of the sphere and the acceleration of its mass center.
Calculate the radiant heat loss if the surface emissivity is 0.6. 1-23 A flat wall is exposed to an environmental temperature of 38?C.
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