Derive from the first principles an expression for the
reflection coefficient in term of
surge impedance of incident line, Z1 and the transmitted line,
Z2.
Derive the angular spectrum of the field transmitted through
an amplitude grating that the transmission coefficient is T=T0*
cos^2(2pi*x/a). Assuming normal incident plane wave at wavelength
?. Based on the result, design a amplitude grating that has uniform
power distribution into three diffraction orders.
In the Figure, a beam of light, with intensity 43
W/m2 and polarization parallel to a y axis, is
sent into a system of two polarizing sheets with polarizing
directions at angles of θ1 = 70o and
θ2 = 90o to the y axis. What is the
intensity of the light transmitted by the two-sheet system?
5) Wave on transmission lines
(a) Derive wave equations for voltage and currents over the
transmission lines.
(b) Solve for general solutions
(c) Indicate the definition of characteristic impedance
Two polarizers are set up so that their polarization directions
are parallel and vertical. Which of the following describes light
that has passed through both filters?
A. The light is polarized in the veritcal direction
B. the light is polarized in the horizontal direction
C. The light is not polarized
D. No light passes through the filters
Using Larmor's formula, explain why there is no reflected light
for the "p" polarization (parallel to the incidence plane) after a
total polarization by reflection in the Brewster angle.
Write equations of the lines through the given point parallel to
and perpendicular to the given line.
4x + 6y = 0, (7/8,3/4)
(a) parallel to the given line
(b) perpendicular to the given line