Abstract: An antenna module and an electronic device are provided. The antenna module includes a substrate, a floating radiating unit, a low-frequency radiating unit, and a feed unit. The substrate has a first and a second direction that are not parallel to each other. The floating radiating unit is spaced apart from the low-frequency radiating unit along the first direction, and the floating radiating unit and the low-frequency radiating unit have a common side in the second direction. The feed unit is located on the common side, and is spaced apart from the floating radiating unit and the low-frequency radiating unit along the second direction. A projection path of the feed unit along the second direction passes through the floating radiating unit and the low-frequency radiating unit, and the feed unit is coupled with the floating radiating unit and the low-frequency radiating unit.

Abstract: A dual circularly polarized antenna structure includes a substrate, an M number of antenna arrays, and a feed module. Each of the antenna arrays includes two first antennas and two second antennas. Each of the first antennas and the second antennas includes two sub-antennas and two microstrip lines electrically coupled to the two sub-antennas. The two sub-antennas of the first antenna overlap through translation. The two sub-antennas of the second antenna overlap through translation. A center point is defined between the first antennas and the second antennas. One of the sub-antennas of each of the first antennas and one of the sub-antennas of each of the second antennas are adjacent to the center point, and have a 4-fold rotational symmetry relative to the center point. The feed module is electrically coupled to each of the antenna arrays for generating a first circular polarization and a second circular polarization.

Abstract: A heading and attitude correction method and a heading and attitude correction system are provided. The method includes: obtaining attitude data in a period of time; performing a linear regression analysis on the attitude data and time points in the time period to obtain a regression line and a standard deviation; obtaining a deviation value between the attitude data and the regression line at each of the time points; excluding the attitude data for which the deviation value is greater than or equal to at least twice the standard deviation; grouping the attitude data according to a grouping value to form clusters; comparing a total quantity of the attitude data in each of the clusters, and defining one of the clusters with a largest total quantity as an ideal cluster; and calculating an average of the attitude data in the ideal cluster as a reasonable attitude data.

Abstract: An antenna array includes a common carrier and four microstrip antennas disposed on the common carrier. The common carrier has a first direction and a second direction that is perpendicular to the first direction. The four microstrip antennas are arranged in a matrix along the first direction and the second direction. Each of the four microstrip antennas includes an antenna structure and a power divider. The antenna structure includes a circular body and two circular feeding points that are surrounded by the circular body and do not connect to the circular body. The power divider can feed signals to the two circular feeding points. Any two adjacent ones of the antenna structures along the second direction have a two-fold rotational symmetry relationship, and any two adjacent ones of the power dividers along the first direction or the second direction have a mirror-symmetrical relationship.

Abstract: A multifunctional antenna structure includes a substrate, a broadband antenna, a first frequency divider, a second frequency divider, a wireless network module, and a long term evolution module. The first frequency divider can receive an antenna signal from the broadband antenna and output a first primary frequency division signal and a second primary frequency division signal that have different frequency ranges. The second frequency divider can receive the first primary frequency division signal and output secondary frequency division signals that have different frequency ranges. A minimum difference between any two of the secondary frequency division signals that have frequency ranges near each other is greater than or equal to 2 MHz. The wireless network module can send and receive the second primary frequency division signal. The long term evolution module can send and receive the secondary frequency division signals.

Abstract: A dual circularly polarized antenna array includes an insulating substrate, an M number of feed modules, and an M number of antenna groups. The insulating substrate includes an M number of preset points. The M antenna groups are respectively disposed on the M preset points, and each antenna group includes four antennas. Any two opposite ones of the four antennas jointly have a 180-degree rotational symmetry relative to a corresponding one of the M preset points. Each antenna includes a conductive sheet, and a first feed point and a second feed point that are electrically coupled to one of the M feed modules. The first feed points of the four antennas can jointly generate a left-hand circular polarization through one of the M feed modules, and the second feed points of the four antennas can jointly generate a right-hand circular polarization through one of the M feed modules.

Abstract: An antenna correcting system is provided. The antenna correction system compares amplitudes of antenna signals that are emitted or received respectively by a plurality of antenna units with each other to select one of the amplitudes as target amplitude. The antenna correction system corrects the amplitude of each of the antenna signals according to the target amplitude. As a result, the amplitudes of the antenna signals are the same as each other or approximate to each other. After the amplitudes of the antenna signals are corrected, the antenna correction system compares phases of the antenna signals with each other to select one of the phases as a target phase. The antenna correction system corrects the phase of each of the antenna signals according to the target phase. As a result, the phases of the antenna signals are the same as each other or approximate to each other.

Abstract: An antenna device includes a carrier and an antenna array. A first dual-frequency antenna structure of the antenna array includes a first conductive sheet, a first transmitting antenna, and a first receiving antenna. A first extension line passes through both two centers of two regions defined by respectively and orthogonally projecting the first transmitting antenna and the first receiving antenna onto the first conductive sheet. A second dual-frequency antenna structure of the antenna array includes a second conductive sheet, a second transmitting antenna, and a second receiving antenna. A second extension line passes through both two centers of two regions defined by respectively and orthogonally projecting the second transmitting antenna and the second receiving antenna onto the second conductive sheet. The first and second conductive sheets have a four-fold rotational symmetry relative to an intersection point between the first extension line and the second extension line.

Abstract: A three-dimensional antenna structure is applicable to a transmission frequency band, and includes an insulating carrier, an M number of first antennas, an M number of microstrip lines, a second antenna, and a grounding element. The M microstrip lines are electrically coupled to the M first antennas. The second antenna is electrically coupled to the M first antennas through a connection point of each of the M microstrip lines, and has an M?1 number of line segments. Any end of each of the M?1 line segments correspond in position to one of the connection points of the M microstrip lines. A length of each of the M?1 line segments is 1/M times a wavelength corresponding to a center frequency of the transmission frequency band. The grounding element is electrically coupled to the M first antennas through the M microstrip lines.

Abstract: An antenna structure is provided. The antenna structure includes an insulating seat, a first antenna and a second antenna disposed on the insulating seat, and two feeding points electrically coupled to the first antenna and the second antenna. The first antenna includes a first body portion and a plurality of first extending portions non-parallel to the first body portion. The second antenna includes a second body portion and a plurality of second extending portions. The second body portion is spaced apart from the first body portion and non-parallel to each of the second extending portions. A length of one of the second extending portion adjacent to a diagonal line of the second body portion is less than a length of another one of the second extending portions. The second extending portions and the first extending portions are spaced apart from each other and jointly generate a capacitance effect.

Abstract: An antenna structure is provided. The antenna structure includes a first insulating substrate, a second insulating substrate, a first antenna, a second antenna, a third antenna, a grounding element, and a feeding point. The first insulating substrate and the second insulating substrate are spaced apart from each other. The first antenna and the second antenna are respectively disposed on two side surfaces of the first insulating substrate. The first antenna has a first line of symmetry, and the second antenna has a second line of symmetry. The first line of symmetry and the second line of symmetry have an angle there-between, and the angle is within a range from 35 degrees to 55 degrees. The third antenna and the grounding element are respectively disposed on two side surfaces of the second insulating substrate. The feeding point is connected to the third antenna and the grounding element.

Abstract: An antenna structure is provided. The antenna structure includes an insulating seat, a first antenna and a second antenna that are disposed on the insulating seat, and two feeding points electrically coupled to the first antenna and the second antenna. The first antenna includes a first body portion and a plurality of first extending portions connected to the first body portion. Each of the plurality of first extending portions is non-parallel to the first body portion. The second antenna includes a second body portion and a plurality of second extending portions connected to the second body portion. The second body portion is spaced apart from the first body portion. Each of the plurality of second extending portions is non-parallel to the second body portion. The second extending portions and the first extending portions are spaced apart from each other and jointly generate a capacitance effect.

Abstract: A dual-polarized antenna structure is provided. The dual-polarized antenna structure includes an insulating substrate, two first antennas, two second antennas, a coupling unit, and two feeding points. The two first antennas are disposed on two sides of the insulating substrate, respectively. The two second antennas are disposed on the two sides of the insulating substrate, respectively. Each of the two second antennas includes two sub-antennas. In any one of the two sides of the insulating substrate, a region defined by orthogonally projecting two sub-middle segments of the two sub-antennas onto another one of the two sides of the insulating substrate overlaps with a main middle segment of the first antenna. The coupling unit is electrically coupled to the two sub-antennas on each of the two sides of the insulating substrate. The two feeding points are electrically coupled to the two first antennas and the two second antennas.

Abstract: A series-connected antenna structure is provided. The series-connected antenna structure includes an insulating substrate, a first connecting line, two first antennas, a second connecting line, two second antennas, and a load point. Two sub-antennas of one of the two first antennas are electrically coupled to a main section of the first connecting line, and two sub-antennas of another one of the two first antennas are respectively and electrically coupled to two subordinate sections of the first connecting line. Two sub-antennas of one of the two second antennas are electrically coupled to a main section of the second connecting line, and two sub-antennas of another one of the two second antennas are respectively and electrically coupled to two subordinate sections of the second connecting line. Each of the two second antennas and each of the two first antennas face opposite directions.

Abstract: A series-connected antenna structure is provided. The series-connected antenna structure includes an insulating substrate, a first connecting line, two first antennas, a second connecting line, two second antennas, and a load point. The first connecting line and the two first antennas are disposed on one of two surfaces of the insulating substrate, and the second connecting line and the two second antennas are disposed on another one of the two surfaces of the insulating substrate. Each of the two first antennas and each of the two second antennas have a same symmetrical shape. A region defined by orthogonally projecting any one of the two second antennas toward the first surface and one of the two first antennas that corresponds in position to the any one of the two second antennas jointly have a two-fold rotational symmetry relative to a corresponding one of the reference positions.

Abstract: A common antenna assembly and a common antenna structure are provided. The common antenna assembly includes a substrate, a plurality of patch antenna disposed on the substrate, a matching network disposed on the plurality of patch antennas, and a plurality of phase shifters electrically connected to the matching network. The substrate defines a first direction and a second direction that are perpendicular to each other. The patch antennas are defined into a plurality of antenna units. Each of the antenna units has four of the patch antennas. In each of the antenna units along the first direction, any one of the antenna units shares a longitudinal common antenna unit with each of the adjacent antenna units. In each of the antenna units along the second direction, any one of the antenna units shares a horizontal common antenna unit with each of the adjacent antenna units.

Abstract: A phased array antenna structure includes a carrier, a radiative layer and a circuit layer both disposed on the carrier, and a phase switch. The radiative layer includes two radiating portions. The circuit layer includes a phased antenna and a transmission circuit. The phased antenna including two end portions respectively connected to the two radiating portions. The transmission circuit includes a feeding end and an externally connecting end that is arranged adjacent to the phased antenna. The phase switch is connected to the externally connecting end of the transmission circuit, and the phase switch is configured to selectively connect only one of the two end portions of the phased antenna.

Abstract: A high frequency antenna device is applied to an operation frequency band within a range of 20-45 GHz. The high frequency antenna device includes a substrate, an antenna array and a processing chip both respectively disposed on two opposite sides of the substrate, and two connectors mounted on the substrate. The antenna array includes a plurality of antennas arranged in at least one row. Each antenna is a dual-polarized metal sheet configured to be selectively operated in a horizontal polarization and a vertical polarization. The operation frequency band has a central frequency corresponding to a wavelength. Central points of any two adjacent antennas have an interval within a range of 0.25-0.75 times of the wavelength. The processing chip is electrically coupled to the antennas and the two connectors. The two connectors electrically correspond to the horizontal polarization and the vertical polarization of each of the antennas.

Abstract: A tag antenna structure of an information carrier includes a carrying sheet and a tag antenna disposed on the carrying sheet. An outer lateral edge of the carrying sheet is symmetrical to a first central axis, and a distance between the outer lateral edge of the carrying sheet and the first central axis is defined as a first outer radius. The tag antenna includes an annular segment and two extending segments respectively extending from two end portions of the annular segment. An outer lateral edge of the annular segment is symmetrical to a second central axis, and a distance between the outer lateral edge of the annular segment and the second central axis is defined as a second outer radius that is smaller than the first outer radius. The second central axis and the first central axis have an offset distance there-between that is larger than zero.

Abstract: An antenna array of a high frequency antenna device includes a plurality of subarrays having the same arrangement. Each subarray includes antennas arranged in rows. Any two adjacent antennas of each of the subarrays respectively have two central points spaced apart from each other by a first interval, and any two adjacent antennas respectively belonging to two of the subarrays respectively have two central points spaced apart from each other by a second interval equal to the first interval. The antenna array is operated in at least one of operation modes, and the operation modes include: any subarray is wirelessly communicated with an external electronic device spaced apart from the corresponding subarray by a first distance; and at least two adjacent subarrays are jointly cooperated to wirelessly communicate with an external electronic device spaced apart from the corresponding subarrays by a second distance greater than the first distance.