Radio frequency module and method for manufacturing the same

摘要

A rectangular penetration hole is formed opening in the opposite two main surfaces of a first dielectric substrate. Conductors for grounding are respectively formed on the main surfaces, to cover the openings of the penetration hole. A conductor layer is formed on opposite inner walls in the penetration hole of the dielectric substrate. A waveguide is structured by a space surrounded by the conductors and the conductor layers. The waveguide is magnetically coupled with an input/output line on a second dielectric substrate through a coupling slot. Because a waveguide has walls made continuous in the dielectric substrate, a low-loss waveguide can be realized. Hence, a high-performance radio frequency module can be realized.