Abstract: An antenna module includes a dielectric substrate, loop antennas, and power feeding wires that transmit high-frequency signals to the antennas. One loop antenna is positioned inside the loop of another in plan view from the winding axis direction. Each power feeding wire has a flat electrode and a via extending along the winding axis. The flat electrodes partially overlap with their respective loop antennas but not with others. At least one via connects to its corresponding flat electrode at a position offset from the antenna in the polarization direction.

Abstract: A substrate connection structure includes a first substrate, a second substrate partially facing the first substrate, and a transmission line extending over the first and second substrates. The transmission line includes a first transmission line on a first surface of the first substrate facing the second substrate, a second transmission line on a second surface of the second substrate facing the first substrate. A through-hole wiring is located at a position not overlapping with the second transmission line. A connection conductor is on the first surface and connects to the through-hole wiring. The first transmission line connect the connection conductor to the second transmission line. A size of the first transmission line is smaller than a size of the connection conductor in a direction orthogonal to a direction in which the first transmission line extends.

Abstract: An antenna substrate includes a dielectric substrate having a main surface; and first to third planar radiation electrodes and first and second feed lines located on the main surface of the dielectric substrate. A size difference between the first and second radiation electrodes and a size difference between the first and third radiation electrodes are larger than a size difference between the second and third radiation electrodes. The first and second feed lines are connected to at least one of the first to third radiation electrode at first and second connection points different from each other. The first radiation electrode is adjacent to the second radiation electrode in a first direction and is adjacent to the third radiation electrode in a second direction different from the first direction.

Abstract: A dielectric block includes a bottom surface that includes a conductive ground member including an antenna ground surface inclined with respect to the bottom surface. A feed element is disposed at a distance from the antenna ground surface, and constitutes a patch antenna together with the antenna ground surface. A feed line is connected to a feed point of the feed element, and a dielectric member that supports the feed element with respect to the ground member. The ground member is exposed to the bottom surface, on both a lower side and a higher side of a contour line passing through an intersection point of a perpendicular line from the feed point to a virtual plane including the bottom surface and a plane including the antenna ground surface, using the bottom surface as a height reference.

Abstract: The antenna module includes a first substrate and a second substrate on each of which a radiating element is arranged, a third substrate, and a switch circuit. An RFIC for supplying a radio frequency signal to the first substrate and the second substrate is arranged on the third substrate. The switch circuit is configured to change over a connection between the RFIC and the radiating element on the first substrate and a connection between the RFIC and the radiating element on the second substrate.

Abstract: An antenna module includes a mounting board with a flat plate shape, and a power supply circuit to supply a radio frequency signal. The power supply circuit is mounted on the mounting board, and a radiating electrode is arranged on the power supply circuit. A dielectric fills a region around the power supply circuit and the radiating electrode. A conductive layer covers at least part of the dielectric. In the dielectric, a lens part is formed at a position overlapping the radiating electrode in plan view of the mounting board. The dielectric includes a first region in which the lens part is formed and a second region other than the first region, and the conductive layer is formed in the second region.

Abstract: An antenna module including a mount substrate that has a flat-plate shape having a surface and a surface, an RFIC that is disposed on the surface side and supplies a radio-frequency signal, and a radiating electrode, in which the mount substrate is provided with a cavity at a position overlapping with the radiating electrode assuming the mount substrate is viewed in plan view, and a periphery of the radiating electrode including an inside of the cavity is filled with a mold resin. The mold resin is provided with a lens at a position overlapping with the radiating electrode assuming the mount substrate is viewed in plan view and on the surface side.

Abstract: In a first region of a ground electrode, a width of a protrusion of the ground electrode in a first direction, in which a notch portion is formed, from a slot is different from a width of the ground electrode in a second direction opposite to the first direction from the slot.

Abstract: An antenna module includes a dielectric substrate, a radiating element that is arranged in the dielectric substrate, ground electrodes that are arranged to be opposed to the radiating element, and a resonance circuit. The resonance circuit is arranged between the radiating element and the ground electrode and includes resonators. The radiating element and the resonance circuit constitute a filter device. The resonance circuit includes an input line that receives a radio frequency signal from an RFIC, a resonance portion that is coupled with the input line, and a resonance portion that is coupled with the input line and the radiating element. The ground electrode is arranged between the radiating element and the input line. The resonance portion functions as an extracted pole unit. The input line is arranged between the resonance portion and the resonance portion.

Abstract: An antenna device includes a first substrate and a second substrate. The first substrate includes a ground electrode having a flat plate-like shape, a radiating element having a flat plate-like shape, and a peripheral electrode electrically connected to the ground electrode. The second substrate includes a first main surface facing the first substrate, a second main surface) opposite to the first main surface, a ground electrode disposed on or in the second main surface), and a ground pad disposed on or in the first main surface). The peripheral electrode and the ground pad are connected to each other.

Abstract: A substrate structural unit includes substrates each having a flat plate shape and at least one conductive member. Each of the substrates includes a first main surface and a second main surface opposed to each other and side surfaces connecting the first main surface and the second main surface. The conductive member is exposed on a side surface of the substrate. The substrate is attached to the substrate such that the normal direction of a main surface of the substrate differs from the normal direction of a main surface of the substrate. The substrate is electrically connected to the substrate by the conductive member.

Abstract: A communication apparatus includes: an antenna module provided with an antenna element having a flat plate shape; a housing that accommodates the antenna module; a heat dissipation plate; and an electrode. The heat dissipation plate is disposed between the housing and the antenna module, and provided with an opening that faces the antenna element. The electrode faces the antenna element in a direction normal to the antenna element and on a side of the first radiating element that radiates the radio wave.

Abstract: 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.

Abstract: An antenna element includes an insulative substrate including first and second main surfaces arranged in an up-down direction. At least one antenna conductor layer is provided on the first main surface of the insulative substrate. At least one insulative substrate non-forming region is provided between the insulative substrate and the antenna conductor layer in the up-down direction. An insulator layer does not exist in the at least one insulative substrate non-forming region. When seen in the up-down direction, all of an outer boundary of at least one antenna conductor overlaps the at least one insulative substrate non-forming region and is not in contact with the insulative substrate. At least one of the at least one insulative substrate non-forming region includes a void.

Abstract: An antenna element includes a first opening including an annular outer boundary in an antenna conductor layer. A first insulative substrate non-forming region is provided between an insulative substrate and the antenna conductor layer in an up-down direction. The insulative substrate does not exist in the first insulative substrate non-forming region. The outer boundary of the first opening overlaps one or more first insulative substrate non-forming regions and is not in contact with the insulative substrate. The first insulative substrate non-forming region is a first void, and a low dielectric constant material having a lower dielectric constant than that of a material of the insulative substrate or a high dielectric constant material having a higher dielectric constant than that of the material of the insulative substrate is provided in the first insulative substrate non-forming region.

Abstract: An antenna module includes a dielectric substrate that has an upper surface and a lower surface; radiating elements that have a flat-plate shape; and dielectric layers. The radiating elements are arranged in the dielectric substrate and can radiate respective radio waves in mutually-different frequency bands. The dielectric layer is arranged in a manner to cover a first region in which the radiating element is arranged. The dielectric layer is arranged in a manner to cover a second region in which the radiating element is arranged. Dielectric constants of the dielectric layers are higher than a dielectric constant of the dielectric substrate. The first region and the second region are adjacent to each other. The radiating element overlaps with the radiating element or the radiating element in plan view in a normal direction of the dielectric.

Abstract: An antenna module is configured to receive a signal from a baseband circuit and to radiate a radio wave. The antenna module includes a dielectric substrate, radiating elements, and a connector. The dielectric substrate includes planar sections having different normal directions. A first radiating element is disposed in or on the planar section. A second radiating element is disposed in or on the planar section. The antenna module is configured to transfer a radio-frequency signal to a third radiating element, which is externally disposed, via the connector. The size of the second radiating element is smaller than that of the third radiating element.

Abstract: An antenna module includes a ground electrode disposed in a dielectric substrate (and radiating elements and feed wiring lines. The radiating elements are disposed to face the ground electrode. The feed wiring lines transmit radio frequency signals to the radiating elements. The radiating element is disposed between the radiating element and the ground electrode. The radiating element is disposed between the radiating element and the ground electrode. The radiating element is larger in size than the radiating element, and the radiating element is larger in size than the radiating element. In plan view in a direction normal to the dielectric substrate, the radiating elements are disposed to overlap with each other. The feed wiring line transmits a radio frequency signal to the radiating element. The feed wiring line transmits a radio frequency signal to the radiating elements.

Abstract: An antenna module includes a dielectric substrate, in or on which a feed element is formed, a dielectric substrate, in which a ground electrode (GND) is formed, and conductive members. The dielectric substrate is disposed opposite the dielectric substrate. When viewed in plan in the direction normal to the feed element, the conductive members are disposed around the feed element. An air layer is formed between the dielectric substrate and the dielectric substrate. The conductive members are formed in the air layer.

Abstract: An antenna module includes feed elements each having a flat plate shape and a ground electrode arranged opposite the feed elements. The feed element radiates a radio wave of a first frequency band. The feed element radiates a radio wave of a second frequency band that is higher than the first frequency band. In a plan view of the feed element, the distance from the center of the feed element to an end portion of the ground electrode in a first direction is shorter than or equal to ½ of a free space wavelength of a radio wave radiated from the feed element. A feed point of the feed element is arranged at a location shifted in a second direction from the center of the feed element, and the second direction is different from the first direction.