project.email
Member level 4
Dear friends
I've designed an antenna for (402-405MHz)frequency band to implant ir in a lossy medium the antenna configuration ,the S11 result and the port signals (i.e incident and reflected signals)are shown in Fig.1
In the other case I simulated the mentioned antenna in the free space and got the S11,port signals .
So the question here is:
Why in the free space(i,e in Fig2) the S11 result has ripples in it's nature?
I know that S11 in Fig2, tell us that the reflected power is almost equal to the incident power so, this antenna is not suitable for 402-405MHz in the free space but it is suitable for the lossy medium in the former frequency band.
What's the other information that these figures tell us?
the results of the antenna in the free space:
I've designed an antenna for (402-405MHz)frequency band to implant ir in a lossy medium the antenna configuration ,the S11 result and the port signals (i.e incident and reflected signals)are shown in Fig.1
In the other case I simulated the mentioned antenna in the free space and got the S11,port signals .
So the question here is:
Why in the free space(i,e in Fig2) the S11 result has ripples in it's nature?
I know that S11 in Fig2, tell us that the reflected power is almost equal to the incident power so, this antenna is not suitable for 402-405MHz in the free space but it is suitable for the lossy medium in the former frequency band.
What's the other information that these figures tell us?
the results of the antenna in the free space: