LTCC antenna-in-package solution for millimeter-wave applications

An antenna element suitable for antenna-in-package solutions at millimeter wave frequencies is introduced. The antenna is composed of a circular patch which is fed with a folded SIW feeding network. This feeding network not only makes the array design procedure modular but also reduces the interaction of the antenna and the radio integrated in the final transceiver. LTCC technology has been used to implement the packaging idea.