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Parallel Surfaces Rule
Parallel

Surfaces

Rule
Passive RF tag actually gets its’ power from the reader. That is to
h
h
d
i
ii
RF
d
h
b
bl
say t
h
at, t
h
erea
d
er
i
sem
i
tt
i
ng
RF
an
d
t
h
etagmust
b
ea
bl
eto
absorb that RF, accelerate the signal and the reflect it back to the
reader. Therefore, i
f
the surface o
f
the reader and tag are close
to parallel, this principal will result in better tag reads. Below is
an example of this rule not being followed:
I
thi
it
th
ft
th t
hi l
I
n
thi
s
i
ns
t
ance,
th
e
f
ac
t
th
a
t
ve
hi
c
l
es
were turning through the read zone
meant poor performance when the
reader was mounted on the white post.
Once the reader was moved back closer
to
the
operator,
it
worked
much
better!
RevC
to
the
operator,
it
worked
much
better!
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