Abstract: A multi bandwidth balun is provided, including a main signal port, a main inductor electrically connected to the main signal port, a first inductor inducted mutually with the main inductor to constitute a first inductor of a first conversion circuit, a first capacitor module connected in parallel to the first conversion circuit, two first signal ports electrically connected to the first capacitor module, a first main capacitor electrically connected to the first signal port and the first capacitor module therebetween, a second inductor inducted mutually with the main inductor to constitute a second inductor of a second conversion circuit, a second capacitor module connected in parallel to the second conversion circuit, two second signal ports electrically connected to the second capacitor module, and a second main capacitor electrically connected to the second signal port and the second capacitor module therebetween.

Abstract: A wearable device including a display unit, a conductive frame and a belt-like structure is provided. The conductive frame surrounds a display region of the display unit, and the conductive frame has a first open slot. Besides, a feeding point and a first ground point are disposed on two sides of an opening of the first open slot, and the conductive frame forms a first antenna element. The belt-like structure is respectively connected to a first edge and a second edge, which are opposite to each other, of the conductive frame.

Abstract: Electronic devices may be provided that include radio-frequency transceiver circuitry and antennas. An antenna may be formed from an antenna resonating element and an antenna ground. The antenna resonating element may have a shorter portion that resonates at higher communications band frequencies and a longer portion that resonates at lower communications band frequencies. An extended portion of the antenna ground may form an inverted-F antenna resonating element portion of the antenna resonating element. The antenna resonating element may be formed from a peripheral conductive electronic device housing structure that is separated from the antenna ground by an opening. A first antenna feed may be coupled between the peripheral conductive electronic device housing structures and the antenna ground across the opening. A second antenna feed may be coupled to the inverted-F antenna resonating element portion of the antenna resonating element.

Abstract: The present invention relates to a dual polarization antenna comprising a reflection plate, and a radiating module including first to fourth radiating elements having respective first to fourth radiating arms having respective bent portions. The bent portions of the first to fourth radiation arms are sequentially adjacent to each other, and sequentially form and shaped structures. The and shaped structures are located on a third quadrant, a fourth quadrant, a second quadrant, and a first quadrant, respectively. The first to fourth radiating elements have supports integrally extending from the bent portions of the first to fourth radiating arms to the reflection plate. The radiating module includes a first feeder line installed to transmit signals to the first and third radiating arms, and a second feeder line installed to transmit signals to the second and fourth radiating arms.

Abstract: An array antenna for radar sensors has a supply line, a plurality of antenna elements each connected to the supply line via a feed line, and circuit elements for distributing power to the antenna elements, in which the supply line is made reflective at one end and the circuit elements for power distribution are situated exclusively in the feed lines.

Abstract: An electronic device includes a sheet shaped antenna which is particularly useful for near field communication. The antenna includes a loop type antenna radiator formed on a carrier, the radiator having spiraling loops along an outer region of the carrier. A first feed terminal is provided at one end of the antenna radiator and disposed inside the loops. A second feed terminal is provided at an opposite end of the antenna radiator and disposed outside the loops. The carrier has a cut-out in proximity to the first feed terminal, which enables the first feed terminal to be bent in the same direction as the second feed terminal without bending an outer segment of the antenna radiator adjacent to the cut-out. In this manner, the feed terminals may be defined on a single layer, allowing for a simplified assembly process.

Abstract: An electronic device may have an antenna for providing coverage in wireless communications bands of interest. The wireless communications bands may include first, second, third, and fourth communications bands. The antenna may have an antenna resonating element with first, second, and third arms and may have an antenna ground. The antenna ground may be formed form metal housing structures and other conductive structures in the electronic device. The first arm may be configured to exhibit an antenna resonance in the first and third communications bands. The second arm may be configured to exhibit an antenna resonance in the second communications band. The third arm may be configured to exhibit an antenna resonance in the fourth communications band. The third arm may be located between the first arm and the ground. A diagonal crossover path may pass over a return path and may couple the second and third arms.

Abstract: A device includes a patch antenna, which includes a feeding line, and a ground panel over the feeding line. The ground panel has an aperture therein. A low-k dielectric module is over and aligned to the aperture. A patch is over the low-k dielectric module.

Abstract: Disclosed is a high-gain wideband antenna apparatus. The high-gain wideband antenna apparatus, includes: a feeding antenna configured to radiate a signal; a cover configured to be disposed on a front surface of the feeding antenna based on a radiation direction of the signal and including a conductor pattern formed in a specific shape; and a ground surface configured to be disposed on the feeding antenna based on the radiation direction of the signal. By this configuration, the conductor patterns are approximately configured on both surfaces of a dielectric material to control a phase of a reflection coefficient in a specific frequency band, thereby increasing a gain and a bandwidth of an antenna and metal surfaces are additionally mounted on sides of a feeding antenna, thereby improving a front back ratio of the antenna.

Abstract: A terminal for performing at least one of wired and wireless communication is provided. The terminal includes a first antenna configured to recognize a handwriting through a change of an electromagnetic field and a second antenna for a short range wireless communication, wherein the first antenna and the second antenna are formed on a same Flexible Printed Circuit Board (FPCB).

Abstract: An electronic device may be provided with a housing. The housing may have a periphery that is surrounded by peripheral conductive structures such as a segmented peripheral metal member. A segment of the peripheral metal member may be separated from a ground by a slot. An antenna feed may have a positive antenna terminal coupled to the peripheral metal member and a ground terminal coupled to the ground and may feed both an inverted-F antenna structure that is formed from the peripheral metal member and the ground and a slot antenna structure that is formed from the slot. Control circuitry may tune the antenna by controlling adjustable components that are coupled to the peripheral metal member. The adjustable components may include adjustable inductors and adjustable capacitors.

Abstract: A feeding apparatus includes a substrate, an annular grounded metal sheet having a first opening and a second opening, a rectangular grounded metal sheet extending from the annular grounded metal sheet toward an interior according to a configuration of a septum polarizer of a waveguide, a first parasitic grounded metal sheet extending from a side of the rectangular grounded metal sheet along a first direction, a second parasitic grounded metal sheet extending from another side of the rectangular grounded metal sheet along a second direction, a first feeding metal sheet extending from the first opening toward the interior and including a first portion, a second portion and a third portion and a second feeding metal sheet extending from the second opening toward the interior and including a fourth portion, a fifth portion and a sixth portion.

Abstract: In an antenna device, first linear portions of a coil conductor are located on a lower surface of a first resin sheet. Second linear portions of the coil conductor are located on an upper surface of a second resin sheet. Via conductors of the coil conductor are formed in the first and second resin sheets and intermediate resin sheets located between the first and second resin sheets. The via conductors connect a first end and a second end of the first linear portions and a first end and a second end of the second linear portions, respectively. The first and second linear portions and the via conductors define the coil conductor. Each of the intermediate resin sheets includes an aperture in the center portion thereof. The lamination of the apertures defines a cavity in which a magnetic substance core is embedded. The coil conductor is wound around a periphery of the cavity.

Abstract: An outer peripheral wall and an inner peripheral wall are formed in the lower part of a shark-fin antenna case. The lower end surface of the inner peripheral wall is bonded to the upper surface of an insulating base in an antenna base arranged on the lower surface of the antenna case. Thus, an antenna assembly can be housed in the antenna case which is constructed to be waterproof. The antenna assembly is provided with an element holder that is arranged upright on the antenna base; an umbrella-shaped element that is fixed to the top part of the element holder in such a way that the rear part thereof is positioned above the insulating base; an amplifier substrate for amplifying a reception signal of the umbrella-shaped element; and a coil that causes the umbrella-shaped element to resonate at the specified frequency.

Abstract: An apparatus includes an antenna having multiple layers. At least a first of the layers includes both an effective medium and an electromagnetic bandgap (EBG) medium. The antenna could include a ground plane and a feed line, and the first layer of the antenna can be located between the ground plane and the feed line. The antenna could also include a slot ground and a planar antenna structure, and the first layer of the antenna could be located between the slot ground and the planar antenna structure. The antenna could further include a first substrate between a feed line and a slot ground and a second substrate covering a planar antenna structure, and the first layer could include one of the first and second substrates.

Abstract: A modified PIFA antenna is designed for wireless local area network (WLAN) applications. The modified PIFA antenna is configured to resist detuning effects caused by use of various cable lengths and is adapted for use in the 2.4 GHz operation band. A slot extends between the ground and feed portions of the antenna for slightly increasing frequency bandwidth of the antenna.

Abstract: Provided is an antenna device (1) including: an antenna element (120); a substrate (100) on which a ground conductor is provided; a first feeding portion (130); a second feeding portion (140); and a switching section (111, 131, 141). A direction in which high frequency electric current mainly flows in the ground conductor is different from while the first feeding portion (130) feeds the antenna element (120) to while the second feeding portion (140) feeds the antenna element (120).

Abstract: A handheld device comprises a casing acting as a protective supporting framework of the handheld device. A circuit board mechanically supports and electrically connects with each other electronic components of the handheld device and is configured to be embedded into the casing. At least one wireless communications circuit transmits signals and data from the handheld device and is carried by the circuit board. A flex-antenna assembly is electrically coupled to the wireless communications circuit for sending and receiving the signals and data, defines flexible dielectric and conductive layers of the flex-antenna assembly disposed adjacent to each other, and is embedded into the circuit board.

Abstract: A communication device comprises a front housing, a back cover, a main body, a display panel, a signal feed point, a ground point, an antenna and a conductor. The main body is located between the front housing and the back cover. The antenna is installed on the main body and corresponding to an adjacent edge of the display panel. The antenna comprises a first metal part and a second metal part. The first metal part is coupled to the signal feed point, and the second metal part is coupled to the ground point. A coupling gap is defined between the conductor and the antenna, and at least one part of the conductor corresponds to the display panel.

Abstract: A multi-band frame antenna to be used for LTE, MIMO, and other frequency bands. The frame antenna includes two main parts: a metallic frame with no gaps or discontinuities, and a conductive block. The outer perimeter of the metallic frame surrounds the conductive block, and there is a gap between the metallic frame and the conductive block. The conductive block is connected to a system ground. One or more antenna feeds are routed across the gap, between the metallic frame and the conductive block. One or more electrically shorted connections may also be made across the gap, between the metallic frame and the conductive block.