Abstract: An antenna module (1) includes an antenna array (100) that includes a plurality of radiation conductors (11) arranged at regular intervals in or on a dielectric substrate (14) and an RFIC (20) that is provided in or on the dielectric substrate (14) and that performs signal processing on a transmission signal transmitted by the antenna array (100) or a reception signal received by the patch antenna array (100). Each of the plurality of radiation conductors (11) has a transmission feeding point from which the transmission signal is transmitted to the RFIC (20) and a reception feeding point at which the reception signal is received from the RFIC (20).

Abstract: An antenna module (100) includes a dielectric substrate (125), antenna groups (123A, 123B) including a plurality of antenna elements (121), RFICs (110A, 110B) configured to supply radio-frequency power to the antenna groups (123A, 123B), a divider (140) configured to divide a radio-frequency signal between the RFICs (110A, 110B), and a ground electrode (GND2). The RFICs (110A, 110B) are mounted at a mounting surface (126) of the dielectric substrate (125). The divider (140) is provided closer to the mounting surface (126) than to the layer in which the antenna groups (123A, 123B) are provided. The divider (140) includes a first path having lower impedance and a second path having higher impedance. When viewed in plan view in a normal-line direction with respect to the mounting surface (126), a cavity (300) is formed at a portion of the ground electrode (GND2), the portion facing the second path.

Abstract: An antenna module according to an embodiment of the present disclosure includes a dielectric substrate, a first antenna element, a first radio-frequency element, and a first heat-dissipating component. The first antenna element is provided on the dielectric substrate. The first radio-frequency element supplies electric power to the first antenna element. The first heat-dissipating component directs heat from the first radio-frequency element to the outside. The dielectric substrate, the first radio-frequency element, and the first heat-dissipating component are stacked in this order in the Z-axis direction, which is the direction normal to the dielectric substrate. The first heat-dissipating component includes metal. The first heat-dissipating component has a first width at its first position that differs from a second width at its second position located away from the first position in the Z-axis direction.

Abstract: An antenna module (100) includes an antenna element (121), a dielectric substrate (150) on which the antenna element (121) is arranged, and a flexible substrate (160) having a first surface and a second surface. The flexible substrate (160) has a first portion (165), a bent portion (166) bent from the first portion (165) such that the first surface is located in an outer side portion, and a flat second portion (167) extending further from the bent portion (166). The dielectric substrate (150) is arranged on the first surface of the second portion (167). The dielectric substrate (150) has a projection portion (152) projecting from a contact surface between the dielectric substrate (150) and the flexible substrate (160) toward a side of the first portion (165) along the second portion (167). At least part of the antenna element (121) is arranged on the projection portion (152).

Abstract: An antenna module (100) includes at least one antenna element (121), a ground electrode (GND1), and a dielectric layer (130), which is provided between the antenna element (121) and the ground electrode (GND1), and on which the antenna element (121) is mounted. A space (132) is formed between the dielectric layer (130) and the ground electrode (GND1) in a region where the antenna element (121) and the ground electrode (GND1) overlap each other when the dielectric layer (130) is seen in a plan view.

Abstract: The present disclosure relates to an interposer (120), which is a circuit board that has a multilayer structure and that establishes a connection between layers using a via conductor. The interposer (120) includes first and second transmission lines that are connected in series and a first stub and a second stub that are respectively connected to the first transmission line and the second transmission line. The first and second stubs are formed by wiring lines provided in respective different layers, and a second transmission line (123), which connects the first stub to the second stub, includes a via conductor and a wiring line provided in the layer where the second stub (124) is formed.

Abstract: In an antenna array of the present disclosure, in a plan view from a direction that is normal to an isolation element, the isolation element is formed between a first antenna element and a second antenna element. A first distance between the first antenna element and a first ground electrode is different from a second distance between the isolation element and the first ground electrode. A third distance between the second antenna element and the first ground electrode is different from the second distance. In a plan view from a direction that is normal to the first antenna element, the isolation element is spaced apart from the first antenna element. In a plan view from a direction that is normal to the second antenna element, the isolation element is spaced apart from the second antenna element.

Abstract: An antenna module includes a plurality of antenna devices. Each of the plurality of antenna devices includes a dielectric substrate on which an antenna element is placed and a feed line that transmits a radio frequency signal from a RFIC to the antenna element. The feed line is divided within the dielectric substrate and transmits a radio frequency signal to a feed point (122A-1) and a feed point (122A-2) of the antenna element, a phase of the radio frequency signal to the feed point (122A-1) and a phase of the radio frequency signal to the feed point (122A-2) being substantially opposite to one another.

Abstract: An antenna device includes a dielectric substrate, an emitting electrode, a power feed circuit that feeds power to the emitting electrode, and a filter circuit formed on a path connecting the emitting electrode to the power feed circuit, the filter circuit is constituted by two or more circuits that are cascade connected, each of the two or more circuits is either a HPF or a LPF, and the antenna device does not have a resonant frequency of the emitting electrode and has two or more resonant frequencies different from the resonant frequency of the emitting electrode, each of which is formed by the emitting electrode and a corresponding one of the two or more circuits.

Abstract: An antenna module includes a multilayer substrate having a first main surface and a second main surface opposing to each other, a patch antenna formed on a side of the first main surface of the multilayer substrate and configured with a radiation electrode and a ground electrode, an RFIC formed on a side of the second main surface of the multilayer substrate, a first filter, and a second filter different from the first filter, wherein the patch antenna has a first feed point and a second feed point provided at different positions in the radiation electrode, the first feed point is electrically connected to the RFIC via the first filter, the second feed point is electrically connected to the RFIC via the second filter, and the first filter and the second filter are formed in the multilayer substrate.

Abstract: An antenna module includes a dielectric substrate, a radiation electrode formed on the front face of the dielectric substrate, an RFIC and a ground electrode formed on the rear face of the dielectric substrate, a ground line arranged in the dielectric substrate, and a power supply line including a power supply line portion arranged in parallel to a main surface of the dielectric substrate. The ground electrode is arranged between the power supply line portion and the RFIC. The ground line is arranged between the power supply line portion and the radiation electrode. The ground electrode includes the radiation electrode and part of the power supply line portion in a plan view. The ground line includes part of the power supply line portion in the plan view. The area in which the ground line is formed is smaller than the area in which ground electrode is formed.

Abstract: An antenna device is enclosed in a housing. The antenna device includes a dielectric substrate in which a plurality of layers including a ground layer is stacked on top of one another, a feed element, a parasitic element, a feed line, and a conductive member placed in or on the dielectric substrate. The feed element is placed within or on a surface of the housing, and the parasitic element is placed in the dielectric substrate. The feed line is placed, in the dielectric substrate, in a layer between a layer in which the parasitic element is placed and the ground layer and sends a radio frequency signal. When the dielectric substrate is attached to the housing, the conductive member electrically connects the feed line and the feed element and supplies a radio frequency signal to the feed element.

Abstract: An antenna module (1) includes an antenna array (100) that includes a plurality of radiation conductors (11) arranged at regular intervals in or on a dielectric substrate (14) and an RFIC (20) that is provided in or on the dielectric substrate (14) and that performs signal processing on a transmission signal transmitted by the antenna array (100) or a reception signal received by the patch antenna array (100). Each of the plurality of radiation conductors (11) has a transmission feeding point from which the transmission signal is transmitted to the RFIC (20) and a reception feeding point at which the reception signal is received from the RFIC (20).

Abstract: An antenna module includes a substrate, a RF signal processing circuit provided on the substrate, a ground electrode provided on the substrate above the RF signal processing circuit, a radiation electrode provided on the substrate above the ground electrode, and a feed line provided in an overlapping area where the radiation electrode and the RF signal processing circuit overlap, the feed line connecting the radiation electrode and the RF signal processing circuit, wherein the ground electrode includes a first ground pattern, a second ground pattern, and a peripheral wall connecting the first ground pattern and the second ground pattern, the peripheral wall surrounds part of the feed line, and the second ground pattern has a through hole through which the feed line penetrates.

Abstract: An antenna module (1) includes a substrate (100) including a first flat plate portion (100a) and a second flat plate portion (100b) that have respective normals intersecting with each other and that are continuous, first patch antennas (10a to 10d) that are formed on the first flat plate portion (100a) and second patch antennas (20a to 20d) that are formed on the second flat plate portion (100b). The first patch antennas (10a to 10d) are arranged in at least a column in a column direction parallel to a boundary line (B) between the first flat plate portion (100a) and the second flat plate portion (100b). The second patch antennas (20a to 20d) are arranged in at least a column in the column direction.

Abstract: Transmission paths correspond to frequency bands, respectively, and transmission signals of the four bands are transmitted through the transmission paths. Reception paths correspond to the frequency bands, respectively, and reception signals of the four bands are transmitted through the reception bands. A Tx switch selects a transmission path corresponding to one of the frequency bands so that a transmission signal corresponding to the frequency band is emitted from an antenna. An Rx switch selects a reception path corresponding to the frequency band so that a reception signal of the frequency band received by the antenna is extracted. A tunable filter is a filter whose frequency band is adjusted in a variable manner so that reception band noise of the frequency band is attenuated, and is provided between each of the antenna and the Rx switch, and the Tx switch.

Abstract: The present disclosure includes a first circuit that is connected between a power feed port and an antenna port, and a second circuit that is connected between the power feed port and the ground or between the antenna port and the ground. The first circuit is a circuit in which for example a first variable capacitance element is connected in series with a first inductor, and the second circuit is a circuit in which for example a second variable capacitance element is connected in parallel with a second inductor. A switch performs switching at least between a first state in which a second end of the second circuit is connected to a first end of the first circuit and a second state in which the second end of the second circuit is connected to a second end of the first circuit.

Abstract: A patch antenna (10) includes a planar first power feeding conductor pattern (11) that is formed on a dielectric substrate (20) and to which a radio frequency signal is fed, a planar second power feeding conductor pattern (12) that is formed on the dielectric substrate (20) and is arranged to be isolated from the first power feeding conductor pattern (11) so as to interpose the first power feeding conductor pattern (11) in the polarization direction when the dielectric substrate (20) is seen in a plan view, and a planar ground conductor pattern (13) that is formed on the dielectric substrate (20) so as to face the first power feeding conductor pattern (11) and the second power feeding conductor pattern (12) and is set to have a ground potential, wherein the second power feeding conductor pattern (12) is not set to have the ground potential.

Abstract: A patch antenna includes a power feeding conductor pattern formed in a dielectric layer, a ground conductor pattern formed on the dielectric layer, a first parasitic conductor pattern and a second parasitic conductor pattern formed in/on the dielectric layer and is not set to have a ground potential. The first parasitic conductor pattern, the power feeding conductor pattern, the second parasitic conductor pattern, and the ground conductor pattern are arranged in this order in a cross section and overlap each other in a plan view. A resonant frequency f1 defined by an opposite-phase mode current flowing through the first parasitic conductor pattern is higher than a resonant frequency f2 defined by an in-phase mode current flowing through the power feeding conductor pattern, and a resonant frequency f3 defined by an opposite-phase mode current flowing through the second parasitic conductor pattern is lower than the resonant frequency f2.

Abstract: There are provided an antenna, an antenna tuner configured to adjust frequency characteristics of the antenna, and a control circuit configured to change frequency characteristics of the antenna tuner in a boundary time set for a unit of time of communication. For example, after matching indicators based on VSWRs and received signal strength indicators based on RSSIs have been acquired in a plurality of times of communication space time, the antenna tuner is put into an optimum mode. This suppresses the decrease in communication throughput caused by the adjustment of the antenna tuner and suppresses the interruption of communication at the time of adjustment of the antenna tuner.