Building an antenna for the openpcd reader

[janusz at arrowsoft.de]

Hello,

you helped me much with my scanning for multiple tags problem. Now there
is another question. We want to create an antenna that is integrated in a
table with a diameter of: 70 cm
We looked into the datasheets from Phillips and the Openpcd-reader. Is it
right that we have to remove the two 0R resistors and add our resistors to
the board to connect the antenna to this resistors? And if that is right
how can we calculate the resistance of them. There should be a formula in
the phillips datasheets mc073933 page 141 but we haven't found one.

The openpcdwiki says that we should look into these datasheets but they
didn't  help us very much. Do you know another source where we can find
some helpfull manual on creating an antenna for the reader?

Greetings Janusz Leidgens, Mattias Schäffersmann

Technische Fakultät
Universität Bielefeld