Abstract: An antenna module includes a base member, an antenna that includes a radiating element disposed in or on the base member, first and second feed lines each of which is connected to the radiating element, and a control circuit that is connected to the radiating element via the first feed line and the second feed line. The control circuit includes a signal processing circuit that is connected to the antenna via the first feed line and the second feed line and an antenna inspection circuit that checks an electrical conductivity of an electrical conduction path connecting the first feed line, the radiating element, and the second feed line to one another.

Abstract: The antenna device includes multiple first radiation plates and multiple second radiation plates. Each of the first radiation plates has a first feed point and a first ground end portion, and radiates a first radio wave. Each of the second radiation plates has a second feed point and a second ground end portion, and radiates a radio wave of a frequency different from the frequency of the first, radio wave. When the antenna device is viewed in a direction orthogonal to the polarization direction of the first radio wave, the first radiation plate and the second radiation plate are disposed so as not to overlap.

Abstract: An antenna device includes a ground electrode, a feed element, and a parasitic element. The ground electrode has a substantially non-square rectangular plane shape that includes a first side extending in a first direction and a second side extending in a second direction orthogonal to the first direction. The feed element has a substantially rectangular plane shape and is formed in such a way that each side of the feed element becomes parallel to the first direction or the second direction. The parasitic element is formed in such a manner as to face a side of the feed element parallel to the first side. The feed element is configured to radiate a first polarized wave that excites in the first direction and a second polarized wave that excites in the second direction. The length of the first side is longer than the length of the second side.

Abstract: An antenna module includes a plurality of sub-arrays arranged in an array. A first sub-array and a second sub-array are disposed adjacent to each other in a first direction. The first sub-array includes a first radiating element and a second radiating element disposed adjacent to each other in a second direction. The second sub-array also includes first and second radiating elements disposed adjacent to each other in the second direction. The second direction is a direction in which the first radiating element of the second sub-array is viewed from the first radiating element of the first sub-array and is a direction in which the second radiating element of the first sub-array and the second radiating element of the second sub-array are viewed. An angle ? formed between the first direction and the second direction is larger than 0° and smaller than 90°.

Abstract: An antenna module includes a first substrate, a second substrate, a connection member connected between the first substrate and the second substrate, and an FEM disposed on the connection member. A radiating element is disposed on the first substrate. An RFIC for supplying a radio frequency signal to the radiating element is disposed on the second substrate. The connection member transmits radio frequency signals between the RFIC and the radiating element. The FEM amplifies radio frequency signals transmitted between the RFIC and the radiating element. The FEM is disposed at a position between a connecting point with the first substrate and a connecting point with the second substrate on the connection member.

Abstract: The present disclosure reduces a loss of strength of a radio-frequency signal radiated from an antenna module covered with a housing. An antenna module (100) includes a dielectric substrate (130), a driven element (141), and a ground conductor (190). The dielectric substrate (130) has a multilayer structure. The driven element (141) is disposed in or on the dielectric substrate (130). The ground conductor (190) is disposed between the driven element (140) and a mounting surface (132) on which a power supply circuit is mountable. The power supply circuit supplies the driven element (140) with radio-frequency power. The dielectric substrate has at least one groove (150). The at least one groove (150) is separate from the driven element (140) when the antenna module (100) is viewed in plan. The at least one groove (150) extends toward the ground conductor (190) from a layer on which the driven element (140) is disposed.

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 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: 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: An antenna module includes: a radiating element and a filter device including a plurality of resonators. The plurality of resonators include a first resonator and a second resonator, the second resonator being disposed at a final stage. The first resonator and the second resonator are each electrically coupled to the radiating element. A degree of a coupling of the resonator and the radiating element is weaker than a degree of a coupling of the resonator and the radiating element.

Abstract: An antenna module includes a ground electrode, a fed element, unfed elements, and feed lines. The unfed element is formed in a planar shape and disposed facing the ground electrode. The fed element is formed in a planar shape and disposed between the unfed element and the ground electrode. The unfed element is formed in a planar shape and disposed between the fed element and the ground electrode. The feed lines extend through the unfed element and are used to transfer radio-frequency signals to the fed element.

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: 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 element includes a dielectric substrate, a first ground electrode, a second ground electrode, a via conductor, and a radiation electrode. The dielectric substrate includes a first portion shaped like a flat plate and a second portion thinner than the first portion. The first ground electrode is arranged in the first portion. The second ground electrode is arranged in the second portion. The via conductor couples the first ground electrode and the second ground electrode. A distance between the radiation electrode and the first ground electrode in a first thickness direction is more than a distance between the radiation electrode and the second ground electrode in a second thickness direction. Part of the radiation electrode lies opposite to the first ground electrode without lying opposite to the second ground electrode.

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 includes a dielectric substrate having a multilayer structure, a ground electrode disposed in the dielectric substrate, a plate-like fed element facing the ground electrode and disposed at a layer different from a layer including the ground electrode, a feed line for transferring a radio-frequency signal to a feed point of the fed element, and a stub. The stub branches off from the feed line at a branch point of the feed line and has an open end. The stub is disposed between the fed element and the ground electrode. When the dielectric substrate is viewed in plan view, the open end coincides with the fed element.

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: 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: A plurality of multi-band antenna elements operable at a plurality of frequencies constitutes an array antenna. An antenna drive unit selects at least some of the multi-band antenna elements from the plurality of multi-band antenna elements in accordance with one operation frequency selected from the plurality of operation frequencies, and causes the selected multi-band antenna elements to operate.