Hi,
I'm looking at some designs (sorry but can't share these) and I have some questions about antenna design (which I know very little about).
There is a a board that controls RF communication and is connected to an antenna board which has a connector where an antenna is connected.
Some antenna boards (depending on frequency) also have an antenna trace (picture attached). But why only some? If the antenna that goes to different frequency versions is different then why is the trace needed for some?
Frequencies are like 900MHZ, 133MHz etc if I remember correctly.
Sorry that I can't give more information.
I'm looking at some designs (sorry but can't share these) and I have some questions about antenna design (which I know very little about).
There is a a board that controls RF communication and is connected to an antenna board which has a connector where an antenna is connected.
Some antenna boards (depending on frequency) also have an antenna trace (picture attached). But why only some? If the antenna that goes to different frequency versions is different then why is the trace needed for some?
Frequencies are like 900MHZ, 133MHz etc if I remember correctly.
Sorry that I can't give more information.
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