Abstract: A dual broadband and multiband antenna system of reduced dimension is preferably an external antenna for vehicles. The antenna system comprises first and second radiating elements and a flat ground plane in common for the two radiating elements. The two radiating elements are placed above the ground plane, with each radiating element being folded to form vertical and horizontal surfaces. The two vertical surfaces are orthogonal to the ground plane and parallel to each other. The horizontal surfaces are coplanar between vertical surfaces and parallel to the ground plane. Two parasitic elements are connected with the ground plane, and are parallel or coplanar with the horizontal surfaces, and extend partially around respectively the first and second radiating elements. The antenna system is preferably adapted to operate on the LTE communication network and provides 5G communication services.

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: An under-roof antenna module for a vehicle includes a metallic frame with at least one perforation, and at least one transceiver. The at least one transceiver is arranged at portions of the frame proximal to the at least one perforation.

Abstract: An electronic device according to various embodiments of the present invention comprises: at least one antenna; a bracket comprising a first surface having at least one antenna mounted thereon, and a second surface oriented opposite to the first surface; a cover housing covering the first surface of the bracket; a bonding member for bonding the first surface of the bracket and the cover housing; and a film disposed in an area corresponding to at least one antenna between the bonding member and the first surface of the bracket.

Abstract: An antenna assembly, comprising: a single substrate having a lower surface and an upper surface; an isotropic source of spherical electromagnetic waves configured for emitting surface waves on the upper surface; a ground plane formed on the lower surface comprising a metallic deposit on the entire lower surface; an antenna element formed on the upper surface comprising a periodic patterns metasurface formed on the substrate by a texture of subwavelength patches, the antenna element comprising: a first-scale metasurface defined by a two-dimensional alternation of metal or metamaterial patches having closely spaced vertices in each contiguous element to form small gaps; a plurality of switches disposed in the gap between the vertexes of the patches, each switch permitting to connect several patches through the vertexes for defining a second-scale metasurface having a pattern thus forming the antenna element; wherein each patch has dimensions which do not depend on the frequency of the waves to be radiated, t

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: A magnetic-field generating circuit includes a transformer antenna that includes a transformer including a primary coil and a secondary coil and a resonant capacitor connected in parallel to the secondary coil of the transformer and that generates a magnetic field. Moreover, an AC power supply circuit is provided that supplies an AC voltage serving as a driving voltage to the primary coil of the transformer antenna. The secondary coil and the resonant capacitor form a parallel resonant circuit whose resonant frequency is set to be equal to a frequency of the AC voltage supplied from the AC power supply circuit.

Abstract: In one embodiment, a system includes a ground layer, a first layer, a second layer, and a plurality of vias. The first layer includes a first insulating material and a plurality of first metallic strips. The second layer includes a second insulating material and a plurality of second metallic strips. The plurality of vias electrically connect one or more of the plurality of first metallic strips of the first layer to one or more of the plurality of second metallic strips of the second layer. The plurality of first metallic strips of the first layer and the plurality of second metallic strips of the second layer form a plurality of capacitors and a plurality of conductors. Each capacitor is located in the first layer. Each conductor is partially located in the first layer and partially located in the second layer.

Abstract: A loop-like dual-antenna system is provided. The loop-like dual-antenna system includes a dielectric substrate having a first surface and a second surface opposite to each other. The loop radiating element includes a first radiating part with two ends and a second radiating part opposite to the first radiating part. A first signal source is disposed on the first surface of the dielectric substrate and electrically connected to two ends of the first radiating part. A grounding part is disposed on the second surface of the dielectric substrate and disposed on one side of the dielectric substrate away from the first signal source. A coupling matching element is disposed on the second surface of the dielectric substrate and adjacent to the grounding part, for coupling to and exciting the second radiating part. A second signal source, disposed on the second surface of the dielectric substrate, and electrically connected to the coupling matching element and the grounding part.

Abstract: An antenna structure utilizing metallic frame of electronic device to simultaneously send and receive radio waves on multiple frequencies includes first and second feeding sources and the metallic frame. A notch in the metallic frame creates first and second radiating portions. The first feeding source feeds the first radiating portion, and a first mode and a second mode can be activated simultaneously to generate radiation signals in a first frequency band and a second frequency band. The second feeding source feeds the second radiating portion and a third mode and a fourth mode can be simultaneously activated to generate radiation signals in a third frequency band and a fourth frequency band. A wireless communication device is also provided. The wireless communication device includes a motherboard and the antenna structure.

Abstract: An antenna control system and method and a mobile terminal are provided. The system includes an antenna and a controller. The antenna includes a first antenna portion and a second antenna portion symmetrically distributed, each of which has a plurality of operating states corresponding to a plurality of operating resonance frequencies. The controller includes an antenna-operating-state acquisition submodule configured to acquire a first operating state of the first antenna portion; a control submodule configured to adjust a second operating state of the second antenna portion based on the first operating state such that a difference between an operating resonance frequency of the first antenna portion and an operating resonance frequency of the second antenna portion is less than a defined threshold.

Abstract: The invention includes various embodiments of integrated dual-band printed antenna feeds having various combinations of electrical and structural components for use with a prime focus, ring focus, or Cassegrain dish antennas. All of the embodiments of dual-band antenna feeds disclosed herein are configured to be fabricated as a single structure using metal additive manufacturing techniques.

Abstract: The embodiments herein provide a dual-polarized MIMO ultra-wideband system comprising of a linear polarized radiator and circularly polarized radiator. A Symmetric Heptagonal Monopole (SHM) radiating element coupled with a Stepped Co-Planar Waveguide (SCW) provides an ultra-wide bandwidth with linear polarization. An Asymmetric Ruby Shaped Monopole Radiator (ARSM) aided along with a Modified Asymmetric Ground Plane (MAGP) provides the resonance for the entire ultra-wide bandwidth with circular polarization. Modified Asymmetric Ground Plane (MAGP) reduces the cross-polarization between the radiators. Good isolation is achieved using Rectangular Slots (RS) deployed between the radiators. The Symmetric Heptagonal Monopole (SHM) radiating element embedded with Stepped Coplanar Waveguide (SCW), and an Asymmetric Ruby Shaped Monopole (ARSM) radiating element placed above a Modified Asymmetric Ground Plane (MAGP) is configured on a single platform to realize the proposed dual-band UWB MIMO system.

Abstract: An antenna device is disclosed. The antenna device includes a first metal ground plate, a first field adjustment plate, a second field adjustment plate, a first antenna unit, and a first signal feed source. The first field adjustment plate is connected to a first side of the first metal ground plate, in which the first field adjustment plate and the first metal ground plate form a first angle. The second field adjustment plate is connected to a second side of the first metal ground plate, in which the second field adjustment plate and the first metal ground plate form a second angle. The first antenna unit is connected to the first metal ground plate. The first signal feed source is configured to input a first signal to the first antenna unit.

Abstract: Disclosed is a shaped horn in conjunction with a dielectric tube for enhanced aperture directivity that can achieve a near optimum efficiency. The shaped horn provides additional mode control to provide an improved off-axis cross-polarization response. The horn shape can be individually optimized for isolated horns or for horns in a feed array. The feed array environment can produce results that lead to a different optimized shape than the isolated horn. Lower off axis cross-polarization can result in improved efficiency and susceptibility to interference.

Abstract: According to various embodiments, an electronic device may include: a housing including a front plate and a rear plate disposed opposite the front plate; a display disposed in a space between the front plate and the rear plate and viewable through at least a portion of the front plate; an antenna structure including at least one coil having a first surface facing the rear plate in the space and a second surface facing a direction opposite the first surface, the antenna structure configured to transmit and/or receive a signal of a selected or designated frequency; a first magnetic sheet disposed at the first surface; a second magnetic sheet at least partially overlapping the first magnetic sheet when viewed from above the rear plate, the second magnetic sheet being disposed at the second surface; and a third magnetic sheet disposed closer to the rear plate than the second surface, and spaced apart from the first magnetic sheet to have electromagnetically designated isolation with the first magnetic sheet with

Abstract: A shielding apparatus which is for passively attenuating electromagnetic radiation and which comprises a plurality of cells. Each cell comprises a plurality of resonators (26) which are spaced from one another. The cells are arranged in a plurality of unit cells with each unit cell comprising a common loop (32) which surrounds at least two adjacent cells of the plurality of cells. The plurality of unit cells each have an asymmetric structure. The shielding apparatus thus has a negative refractive index for at least one selected frequency whereby electromagnetic radiation at the at least one selected frequency is passively attenuated.

Abstract: A flexible coil includes a flexible substrate with a plurality of holes extending through the substrate. Each hole is configured to receive at least a portion of a fastener extending through the hole. Each fastener engages the flexible substrate and an antenna loop to positively retain the antenna loop to the flexible substrate. The holes are arranged in the flexible substrate to align each antenna loop with respect to the other antenna loops mounted to the flexible substrate. The fasteners are removably mounted to the flexible substrate such that the fastener positively retains the antenna loop to the flexible substrate when mounted to the flexible substrate but allows individual antenna loops to be removed from the flexible substrate when the fastener is removed from the flexible substrate. Multiple fasteners are provided for each antenna loop and are spaced apart from each other and positioned along the length of the loop.

Abstract: A parallel-plate antenna or antenna array suitable for operation at millimeter wave frequencies. The antenna includes an antenna element having a ground plane with a slot and a pair of parallel plates connected to the ground plane. The parallel plates extend generally perpendicularly from the ground plane. In plan view, the slot is arranged between the parallel plates. The antenna also includes a feed operably coupled with the slot for feeding the slot during operation so as to generate a circularly polarized signal for radiation.

Abstract: A mobile device and an antenna module thereof are provided. The antenna module includes a substrate, a first antenna and a second antenna. The first antenna and the second antenna are disposed on the substrate. The substrate includes a substrate body, a first ground layer and a second ground layer. The first ground layer includes a first slot, the second ground layer includes a second slot, and a vertical projection of the first slot onto substrate body at least partially overlaps with a vertical projection of the second slot onto substrate body. The first slot and the second slot are located between the first antenna and the second antenna, and the first antenna is located closer to the first slot and the second slot than the second antenna.