Last Updated：2022/12/24
The
radiansphereis the boundary between the near field and the far field of a small antenna. Its radius is one radianlength (λ/2π), at which distance the three terms of the field are equal in magnitude. A
smallantenna is one somewhat smaller than the radiansphere, but it has a
sphere of influence" occupying the radiansphere.
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"The
"radiansphere"
is
the
boundary
between
the
near
field
and
the
far
field
of
a
small
antenna.
Its
radius
is
one
radianlength
(λ/2π),
at
which
distance
the
three
terms
of
the
field
are
equal
in
magnitude.
A
"small"
antenna
is
one
somewhat
smaller
than
the
radiansphere,
but
it
has
a
"sphere
of
influence"
occupying
the
radiansphere.
