Module 11 Incomplete

Power ratio is a term used to express
what property of an antenna?

A standing-wave ratio (swr) describes
which of the following quantities?

Directivity refers to which of the
following properties of a radiated beam?

Surface angular measurements for
antenna directivity in radar and
communications systems are made in
relationship to which of the following
references?

Radar range is determined as a function
of which of the following measures?

The parabolic reflector is often used
because it produces a radiation pattern
with which of the following antenna
characteristics?

A lens antenna which accelerates some
portion of the wavefronts so that all
wavefronts exit the lens at the same time
is referred to as the

In a delay-type lens, the amount of delay
in the phase of the wave passing through
the lens is determined by which of the
following characteristics?

What is/are the basic type(s) of antenna
array(s) in common use?

In a frequency-sensitive antenna, the
physical length of the serpentine section
and its relationship to the wavelength of
the applied energy determines which of
the following characteristics?

In a horizontal-slot antenna, the
polarization of the energy is radiated in
what direction?