Abstract:
A chip structure for mounting on a clearance area of a printed circuit board includes a packaged chip and a monopole coupling antenna. The packaged chip has an insulating body, an electronic component embedded in the insulating body, and a plurality of grounding pads electrically connected to the electronic component. The monopole coupling antenna has a grounding radiating metal and a monopole radiating metal. The packaged chip is electrically connected to the grounding radiating metal by the grounding pads. The monopole radiating metal is disposed on the insulating body and spaced apart from the electronic component and the grounding radiating metal. The monopole radiating metal is configured to couple the grounding radiating metal and the electronic component by using a feeding circuit to connect the packaged chip and the monopole radiating metal and using a grounding circuit to connect the grounding radiating metal and the printed circuit board.
Abstract:
A near field antenna adapted to an object detecting device, for sensing a plurality of units under test of at least an object under test. The near field antenna comprises a periodic guided-wave structure, a metallic reflection portion and at least two near field magnetic coupling antennas. The periodic guided-wave structure disposed below the object under test has a plurality of conductive units periodically arranged on a first plane. The metallic reflection portion is disposed under the periodic guided-wave structure to form an enclosed space. The near field magnetic coupling antennas are disposed on a second plane parallel to the periodic guided-wave structure, and are located in the enclosed space. The feed point and the ground point of each near field magnetic coupling antenna are fed by a coaxial cable with a feeding direction parallel to the periodically arranged conductive units.
Abstract:
A multi-band antenna comprises a single-pole radiating portion and a coupling radiating portion coupled to a grounding terminal. The single-pole radiating portion has a first radiating unit and a fourth radiating unit coupled to a feeding terminal. The single-pole radiating portion is bent to form a second radiating unit and a third radiating unit. The coupling radiating portion has a fifth radiating unit, and the coupling radiating portion is bent to form a sixth radiating unit. The sixth radiating unit of the coupling radiating portion and the third radiating unit of the single-pole radiating portion are coupled to each other to generate a LTE technology band near 700 MHz. The fifth radiating unit of the coupling radiating portion, the third radiating unit and the fourth radiating unit of the single-pole radiating portion are coupled to each other to generate a high frequency band.
Abstract:
A near field antenna adapted to an object detecting device, for sensing a plurality of units under test of at least an object under test. The near field antenna comprises a periodic guided-wave structure, a metallic reflection portion and at least two near field magnetic coupling antennas. The periodic guided-wave structure disposed below the object under test has a plurality of conductive units periodically arranged on a first plane. The metallic reflection portion is disposed under the periodic guided-wave structure to form an enclosed space. The near field magnetic coupling antennas are disposed on a second plane parallel to the periodic guided-wave structure, and are located in the enclosed space. The feed point and the ground point of each near field magnetic coupling antenna are fed by a coaxial cable with a feeding direction parallel to the periodically arranged conductive units.
Abstract:
An antenna system for mobile communication includes a transportation device and an antenna module installed on the transportation device. The antenna module has a first polarized antenna unit and a second polarized antenna unit. The polarized direction of first polarized antenna unit is perpendicular to the polarized direction of second polarized antenna unit, such that when the transportation device moves along a first direction, the first and the second polarized antenna units are coupling to each other, and each has an 8-shaped radiation pattern. The longitudinal direction of the radiation pattern of the first polarized antenna unit and the longitudinal direction of the radiation pattern of the second polarized antenna unit are parallel to a second direction, and the second direction is not parallel to the first direction. Thus, the instant disclosure provides the antenna system capable of restraining the multipath fading of mobile communication.
Abstract:
The present disclosure provides a multi-frequency antenna for connecting to a circuit board of a mobile communication device. The circuit board has a grounding plane. The mobile communication device has a metal frame coupled to the grounding plane and surrounding the circuit board. The multi-frequency antenna comprises a first radiator and a second radiator. The first radiator is disposed adjacent to a lateral side of the grounding plane. The first radiator has a feeding end and a grounding end. The first radiator surrounds the metal frame adjacent to the lateral side of the grounding plane to forms a loop. The first radiator forms a first current path to provide a first operating mode. The second radiator connected to the first radiator forms a second current path to provide a second operating mode. The frequency of the second operating mode is higher than the frequency of the first operating mode.
Abstract:
A device for a set of radio communication equipment to reduce electromagnetic energy absorbency of a human body, it suits especially the equipment of a mobile phone, a Blue Tooth or a PDA etc. The standing wave ratio at a point 1 is set to be higher than that at a point 2 of the first working frequency of a multi-frequency wave band, so that the SAR value can be largely lowered. In a preferred embodiment, a point 1 of the first working frequency has 880 MHz, while a point 2 has 960 MHz.
Abstract:
An improved positioning structure of an inner coil for an antenna, wherein: an inner coil with a predetermined length and shape of the antenna is provided on the bottom thereof with a metallic receiving seat for placing in a die to be injected therein plastic material. The inner coil and the injection material have a downwardly extending shaping hole with a predetermined depth provided at the center of a top surface on the top thereof, in order to prevent the inner coil from deformation by injecting the plastic material in the die during injection shaping. The metallic receiving seat is further provided on the bottom thereof with an axial hole which is convenient for taking the product out of the die in a stable state in mass production.
Abstract:
A structure of a helix antenna, wherein, a non-uniform helical coil is press positioned between an inner insulating sleeve and an external insulating sleeve slipping one over the other, the coil is abutted respectively against the inner top surface of the external insulating sleeve and a metallic connecting seat of the inner insulating sleeve; a metallic contact piece is abutted with one end thereof against the metallic connecting seat, and has on the other end a continuous bending portion exposed from a side slit on the inner insulating sleeve, and has a bottom end for press contacting an RF electric circuit of a communication instrument; the coil has on the top end thereof a diametrically extending bent section to be an added loading of the antenna, the bottom end of the coil has a denser coil section positioned on the surface of the metallic connecting seat; the inner and external insulating sleeves placed in the coil are provided at least a melting connecting area respectively comprised of and formed by engagement of an external protruding annulus with an inner annular recess for assembling the helical coil to have a fixed length.
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.