Integration of Grid Array Antenna in Chip Package for Highly Integrated 60-GHz Radios

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The Antenna-in-Package (AiP) technology that integrates an antenna (or antennas) in a radio chip package has become a key technology for 60-GHz wireless communications. However, as the current AiP designs use only one antenna element, the gain is not enough. It is therefore necessary to extend it to an array antenna to achieve higher gain. Microstrip patch array antennas designed for 60-GHz applications have been reported. To avoid the complicated feeding network associated with microstrip patch array antennas, a grid array antenna is adopted in the authors' work.