Integration of a 60 GHz packaged LTCC grid array antenna with an amplifier

Abstract

This paper presents an integration of a 60 GHz packaged low-temperature cofired ceramic (LTCC) grid array antenna (GAA) with a power amplifier under the concept of antenna-in-package. The demonstrated single GAA has a measured maximum gain of 15.12dB at 60GHz, with an accepted impedance bandwidth from 58 to 61 GHz and ±15° half-power beam width (HPBW). Vertical vias and wire-bonding are used to realize low-loss interconnection between the amplifier and the GAA. The measured results indicate that the maximum gain is 26.4dB when the packaged GAA is working as the transmitter, and the maximum gain is 25.69dB when the packaged GAA is working as the receiver, which is 11.28dB and 10.57dB respectively higher than the single GAA. These results clearly demonstrate the feasibility and potential of the solution for the 60 GHz front-end integration and package.