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question a plane wave of unknown frequency is normally incident in air upon the surface of a perfect conductor using an
question consider a thin film of soap in air under illumination by yellow light with lambda 06 mum in vacuum if the
question a 5 mhz plane wave with electric field amplitude of 10 vm is normally incident in air onto the plane surface
question suppose that the optical fiber of example 8-5 is submerged in water with n 133 instead of air determine
question natural light is randomly polarized which means that on average half the light energy is polarized along any
question a parallel-polarized plane wave is incident from air onto a dielectric medium with r 9 at the brewster angle
question a hollow rectangular waveguide is to be used to transmit signals at a carrier frequency of 6 ghz choose its
question a waveguide with dimensions a 1 cm and b 07 cm is to be used at 20 ghz determine the wave impedance for the
question a narrow rectangular pulse superimposed on a carrier with a frequency of 95 ghz was used to excite all
question an antenna with a radiation efficiency of 90 has a directivity of 70 db what is its gain in decibels the
question a 1 m long dipole is excited by a 1 mhz current with an amplitude of 12 a what is the average power density
discussion question 1public welfare programsin 1933 harry hopkins one of fdrs top advisors argued that public welfare
question the radiation pattern of a circular parabolic-reflector antenna consists of a circular major lobe with a
question assuming the loss resistance of a half-wave dipole antenna to be negligibly small and ignoring the reactance
question determine the effective area of a half-wave dipole antenna at 100 mhz and compare it with its physical
question a 3 ghz line-of-sight microwave communication link consists of two lossless parabolic dish antennas each 1 m
question a half-wave dipole tv broadcast antenna transmits 1 kw at 50 mhz what is the power received by a home
question a 150 mhz communication link consists of two vertical half-wave dipole antennas separated by 2 km the antennas
question the 10 db beam width is the beam size between the angles at which f theta is 10 db below its peak value
question a uniformly illuminated rectangular aperture situated in the x-y plane is 2 m high along x and 1 m wide along
question compare directivity dant of a 1 m diameter antenna aperture operating at 10 ghz with directivity deye of the
questions -1 can the biosphere be considered an earth system how would that system be described2 how do autotrophs
question a 94 ghz automobile collision-avoidance radar uses a rectangular-aperture antenna placed above the cars bumper
question repeat problem for a nine-element arrayproblem find and plot the normalized array factor and determine the
question repeat problem for tv channels each requiring a bandwidth of 6 mhzproblem a transponder with a bandwidth of