Murata Manufacturing Co., Ltd.

Natsumi Minamitani

An antenna module includes a dielectric substrate, radiating circuits disposed on the dielectric substrate, a ground electrode, and a dielectric layer. In a plan view in a direction of a normal line of the dielectric substrate, the radiating circuit is disposed adjacent to the radiating circuit. The ground electrode is disposed to face the radiating circuit and the radiating circuit. The dielectric layer is disposed to cover the radiating circuit. The radiating circuit is capable of emitting an electric wave in a frequency band higher than that for the radiating circuit. A dielectric constant of the dielectric layer is higher than a dielectric constant of the dielectric substrate. A distance between the radiating circuit and the ground electrode is shorter than a distance between the radiating circuit and the ground electrode.

Antenna module and communication apparatus equipped with the same

An antenna module includes a ground electrode, a dielectric substrate, and a first radiating element and a second radiating element arranged in the dielectric substrate. The second radiating element is arranged at a position upward from the first radiating element. The first radiating element has a non-superposing portion where the second radiating element is not superposed when viewed in plan view from a height direction. The dielectric substrate has an upper surface and a step surface positioned upward from the non-superposing portion of the first radiating element and downward from the second radiating element. The dielectric substrate is covered with a high dielectric layer.

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Nagaokakyo, Japan

Natsumi Minamitani