Abstract: An antenna device comprising: one or more substrates; a first radiating element disposed on a first region of a surface of the one or more substrates that face a cover covering the antenna device: a second radiating element disposed on a second region of the surface of the one or more substrates that face the cover; a first reflecting plate that reflects an electromagnetic wave from the first radiating element; and a second reflecting plate that reflects an electromagnetic wave from the second radiating element, wherein the first reflecting plate and the second reflecting plate take different positions in a direction perpendicular to the surface of the one or more substrates that face the cover, and the first region and the second region are regions that do not overlap each other on the surface of the one or more substrates that face the cover.

Abstract: An array antenna includes a dielectric substrate, and a plurality of radiating elements being arranged linearly and provided on a first face of the dielectric substrate, each of the plurality of radiating elements having linear polarization and a rotation reference point, wherein one or more radiating elements included in the plurality of radiating elements are rotated differently with respect to the corresponding rotation reference positions each other.

Abstract: A dielectric substrate for transmitting a signal with a frequency F0 includes a dielectric and a copper film pattern arranged on a first surface of the dielectric. The copper film pattern has a first dimension L in a direction parallel to a propagation direction of an electromagnetic wave that has the frequency F0 and that propagates on the first surface, and the first dimension L is given by: L = 1 ? r - 1 ? k ? ? ? 0 where ?r represents a relative permittivity of the dielectric, k represents a constant in a range of 0.15 to 0.70, and ?0 represents a free space wavelength of the signal.

Abstract: An array antenna device includes a substrate, a strip conductor formed on one surface of the substrate, plural loop elements formed on the one surface of the substrate, and a conductor plate formed on the other surface of the substrate. Each of the loop elements has a circumferential length that is approximately equal to one wavelength of a radiated radio wave, and is disposed at such a position as to be coupled with the strip conductor electromagnetically, and the loop elements are arranged alongside the strip conductor at distances that are equal to the one wavelength.

Abstract: An antenna device includes a dielectric substrate, a conductor plate that is placed on one surface of the dielectric substrate, that includes a first slot element, a second slot element, and one or more slits, and a ground conductor that is placed at a specified distance from the conductor plate in a first direction. A center of the first slot element is placed between a center of the second slot element and a center of each of slits, in a second direction.

Abstract: An antenna device includes a wireless module, a module substrate, and a metal plate. The wireless module includes an antenna element that operates in a millimeter wave band. The module substrate is a multi-layer wiring module substrate on which the wireless module is mounted. The metal plate has a length of 1/10 or more of an operation wavelength and is positioned in a vertical direction relative to a plane surface of the antenna element and in a predetermined distance from the antenna element.

Abstract: A wireless device that suppresses deterioration of antenna characteristics and can be made thin is provided. The wireless device is provided with a substrate, a wireless module that is mounted on the substrate and has an antenna unit, and a casing that accommodates the substrate and the wireless module. The wireless device has a gap of a length that is an approximate multiple of a half-wavelength of a radio wave corresponding to a communication frequency of the antenna unit, from the antenna unit toward the casing.

Abstract: An antenna device includes a first substrate, a feeder line which is disposed in the first substrate, a grounding conductor which is disposed in the first substrate, a first radiation element which is electrically connected to the feeder line in the first substrate, a second radiation element which is electrically connected to the grounding conductor and is disposed substantially in parallel with the first radiation element in the first substrate, a first reflector which is disposed in the first substrate, and a second reflector which is disposed in the first substrate so as to be separated by a predetermined distance from the first radiation element or the second radiation element in at least one of longitudinal directions of the first radiation element and the second radiation element.

Abstract: There is provided an antenna device which can suitably tilt directivity of an antenna. The antenna device includes a dielectric substrate, a conductive plate arranged on one surface of the dielectric substrate, a first slot element to which electric power is supplied from a power supply line, which has an electrical length having an approximately ½ wavelength of use frequency of the antenna device, and which is formed in the conductive plate, a second slot element which has an electrical length longer than that of the first slot element, and which is formed in the conductive plate to be substantially parallel to the first slot element by leaving a gap of an approximately ¼ wavelength of the electrical length from the first slot element, and a ground conductor arranged to be substantially parallel to the conductive plate by leaving a predetermined gap from the conductive plate.

Abstract: An array antenna device of this disclosure includes a substrate, a strip conductor with a linear-shape, which is provided on the substrate, and a power feeder that feeds power to the strip conductor, and a plurality of loop elements, a conductor plate, and a plurality of feeding elements. The plurality of loop elements are provided on a first surface of the substrate, and are located along the strip conductor with a specified spacing from each other. Each of the plurality of loop elements has a loop-shape with a notch. The plurality of feeding elements are connected to the strip conductor, and each has a shape extending along a portion of an outer edge of corresponding one of the plurality of loop elements. The conductor plate is provided on a second surface of the substrate.

Abstract: An antenna device includes a dielectric substrate, a conductor plate that is placed on one surface of the dielectric substrate, that includes a first slot element, a second slot element, and one or more slits, and a ground conductor that is placed at a specified distance from the conductor plate in a first direction. A center of the first slot element is placed between a center of the second slot element and a center of each of slits, in a second direction.

Abstract: An antenna device includes a wireless module, a module substrate, and a metal plate. The wireless module includes an antenna element that operates in a millimeter wave band. The module substrate is a multi-layer wiring module substrate on which the wireless module is mounted. The metal plate has a length of 1/10 or more of an operation wavelength and is positioned in a vertical direction relative to a plane surface of the antenna element and in a predetermined distance from the antenna element.

Abstract: A wireless device that suppresses deterioration of antenna characteristics and can be made thin is provided. The wireless device is provided with a substrate, a wireless module that is mounted on the substrate and has an antenna unit, and a casing that accommodates the substrate and the wireless module. The wireless device has a gap of a length that is an approximate multiple of a half-wavelength of a radio wave corresponding to a communication frequency of the antenna unit, from the antenna unit toward the casing.

Abstract: A high frequency module includes a module board, a connection member, and test terminals. The module board has a first surface on which a transmit antenna and a receive antenna are provided and a second surface on which a signal processing IC is provided, the second surface of the module board being the opposite side of the first surface. The connection member contains wiring for connecting the signal processing IC disposed on the second surface of the module board with another board. The test terminals are connected with the signal processing IC disposed on the second surface of the module board and arranged on the first surface of the module board.

Abstract: A microwave circuit that can suppress deterioration of transmission characteristics and that can be reduced in size is provided. The microwave circuit includes a first transmission line, a second transmission line, a third transmission line that is connected to the first transmission line and the second transmission line and whose line width is different from line width of the first transmission line and line width of the second transmission line, and a first ground conductor that surrounds the first transmission line, the second transmission line, and the third transmission line, respectively, at certain distances.

Abstract: An antenna device includes a first substrate, a feeder line which is disposed in the first substrate, a grounding conductor which is disposed in the first substrate, a first radiation element which is electrically connected to the feeder line in the first substrate, a second radiation element which is electrically connected to the grounding conductor and is disposed substantially in parallel with the first radiation element in the first substrate, a first reflector which is disposed in the first substrate, and a second reflector which is disposed in the first substrate so as to be separated by a predetermined distance from the first radiation element or the second radiation element in at least one of longitudinal directions of the first radiation element and the second radiation element.

Abstract: There is provided an antenna device which can suitably tilt directivity of an antenna. The antenna device includes a dielectric substrate, a conductive plate arranged on one surface of the dielectric substrate, a first slot element to which electric power is supplied from a power supply line, which has an electrical length having an approximately ½ wavelength of use frequency of the antenna device, and which is formed in the conductive plate, a second slot element which has an electrical length longer than that of the first slot element, and which is formed in the conductive plate to be substantially parallel to the first slot element by leaving a gap of an approximately ¼ wavelength of the electrical length from the first slot element, and a ground conductor arranged to be substantially parallel to the conductive plate by leaving a predetermined gap from the conductive plate.

Abstract: An array antenna device includes a substrate, a strip conductor formed on one surface of the substrate, plural loop elements formed on the one surface of the substrate, and a conductor plate formed on the other surface of the substrate. Each of the loop elements has a circumferential length that is approximately equal to one wavelength of a radiated radio wave, and is disposed at such a position as to be coupled with the strip conductor electromagnetically, and the loop elements are arranged alongside the strip conductor at distances that are equal to the one wavelength.

Abstract: A portable wireless device having a casing formed by assembling a first casing and a second casing, includes an annular elastic member sandwiched between the first casing and the second casing, a flexible printed board integrally formed with the annular elastic member and disposed in a region surrounded by the annular elastic member, an antenna part disposed on the flexible printed board, a circuit mounting part disposed at the antenna part, and a circuit board disposed in the region surrounded by the annular elastic member. A portion of the antenna part is disposed along a portion of the annular elastic member. The circuit mounting part is disposed on the inner side of the annular elastic member. The antenna part and the ground part of the circuit board are separated therebetween with a predetermined length or more.

Abstract: In a mobile terminal device, a hinge member and a conductive member provided on a chassis and functioning as an antenna are electrically contacted with each other through the slide operation of a chassis and thereby can be configured as an antenna usable in various use situations without providing a separate antenna. Consequently, the mobile terminal device is provided, the manufacture cost of which can be suppressed, the size and thickness of which can be reduced, and which can prevent antenna characteristics from degrading because the antenna is not provided at a portion gripped by a hand. In the device, a first chassis (101) has a radio circuit (112). A second chassis (102) has a ground plate (121) and is attached so as to be freely slidable with respect to the first chassis (101).