A surface wave reduced higher mode circular patch antenna for 60GHz LTCC SiP

A 60GHz surface wave reduced type antenna is presented which can be used in a 3D system in package (SiP) with a low temperature co-fired ceramic (LTCC) substrate. Using a simple magnetic current model, we derive the surface wave reduction condition of our design and show that the LTCC substrate has a very similar condition to the derived condition. Using the result, we design a very simply structured surface wave reduced circular patch antenna. The conventional rectangular patch array antenna is also designed and measured for the purpose of comparison with the designed surface wave reduction type antenna.