Dual frequency organically packaged antenna arrays at 57 and 80 GHz

This paper presents a combination of two broadband dipole antenna arrays packaged in multilayer organic (MLO) substrates at 57 and 80 GHz. The two arrays are fed via a Tee-junction, in a 45 degree configuration. It is shown that simultaneously integrating antennas at these frequencies is possible. Good performance and isolation was obtained for both antennas, with greater than 10% bandwidth. When simultaneously excited, the 57 GHz design yielded close to 9.3 dBi gain, while the 80 GHz design peaked around 10 dBi. Measured results agreed well with simulations.