Millimeter-wave High-Efficiency Multilayer Parasitic Microstrip Antenna Array for System-on-package

This paper describes the design and characteristics of a highly efficient multilayer parasitic microstrip antenna array (MPMAA) constructed on a multilayer substrate for millimeter-wave system-on-package modules. The antenna on a Teflon substrate achieved a radiation efficiency of greater than 91% and an associated antenna gain of 11.1 dBi at 60 GHz. Its size is only 10 mm × 10 mm. We discuss MPMAAs fabricated on both Teflon and low-temperature cofired ceramic (LTCC) substrates. The measured performances of prototype antennas are also presented. The MPMAA offers compactness and high efficiency and is easily integrated with the system-on-package design. It will lead to compact and cost-effective millimeter-wave RF modules.

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