A low-cost high-efficiency broadband integrated antenna for 60-GHz transceiver modules

An Antenna on Module (AoM) concept consisting of a planar dipole on a low-cost mainstream BT epoxy laminate, connected to a 60 GHz transceiver, is demonstrated in this paper. A standard ball-grid-array (BGA) assembly technology is used to create an air-gap between the laminate and the application board, lowering the effective dielectric constant and increasing the substrate thickness; therefore the antenna bandwidth and radiation efficiency are significantly improved. Measurements of the 60 GHz transceiver module, including a transceiver chip and antenna, demonstrate that this concept offers more than 9 dBi gain over 20% bandwidth with a well defined broadside radiation pattern and a high efficiency.