guillaumechen
Junior Member level 1
Hi everybody,
I'm not sure whether my calculation of vacuum box size is correct or not ?
my calculation:
my design is tag antenna in UHF (908.5 - 914 MHz)
v = f x λ
=>3e8 = 910e6 x λ
=>λ = 330mm
if my antenna size is 40(X) x 50(Y) x 1.6(Z) mm
then, the vacuum box size is:
[(λ/4) + edge of XZ plane] x 2
x
[(λ/4) + edge of YZ plane] x 2
x
[(λ/4) + edge of XY plane] x2
Is it right?
Also, I don't know why I get two impedance response (pls check attachment). Is it correct?
I'm not sure whether my calculation of vacuum box size is correct or not ?
my calculation:
my design is tag antenna in UHF (908.5 - 914 MHz)
v = f x λ
=>3e8 = 910e6 x λ
=>λ = 330mm
if my antenna size is 40(X) x 50(Y) x 1.6(Z) mm
then, the vacuum box size is:
[(λ/4) + edge of XZ plane] x 2
x
[(λ/4) + edge of YZ plane] x 2
x
[(λ/4) + edge of XY plane] x2
Is it right?
Also, I don't know why I get two impedance response (pls check attachment). Is it correct?