Abstract: This invention provides low profile distributed antenna which comprises a first and second elongated continuous conductors being kept parallel to each other and forming a transmission line, a plurality of perturbation radiators on the first elongated continuous conductor, wherein a substantial amount of radio frequency energy transmitted by the transmission line radiates from the plurality of perturbation radiators, therefore, the transmission line serves as a low profile distributed antenna.

Abstract: Disclosed is a built-in antenna module for a portable wireless terminal, in which an antenna carrier allows a distance between a radiator and a mainboard. In the built-in antenna module, the antenna carrier includes a plate type junction panel to which the radiator is fixed, an outer barrier rib extending along an edge of the junction panel with a uniform height, and at least one compartment barrier rib for dividing a space formed by the junction panel and the outer barrier rib. The antenna carrier accommodates a speaker and a vibrator at the space formed by junction panel and the outer barrier rib, such that additional installation spaces for the speaker and the vibrator are not required and thereby the portable wireless terminal comes to be slim, lightweight, and simple.

Abstract: An integrated antenna device comprising a first, dielectric antenna component (1) and a second, electrically-conductive antenna component (9), wherein the first and second components are not electrically connected to each other but are mutually arranged such that the second component is parasitically driven by the first component when the first component is fed with a predetermined signal.

Abstract: An antenna of the present invention includes a coaxial cable, antenna elements (3a and 3b), and an unbalanced/balanced converter. The unbalanced/balanced converter has a high-pass circuit provided between an input terminal port1 and an output terminal port2 and a low-pass circuit provided between the input terminal port1 and an output terminal port3. Moreover, the high-pass circuit rejects frequencies within a VHF band, and the high-pass circuit and the low-pass circuit both pass frequencies within a UHF band. In response to a signal, inputted to the input terminal port1, which falls within the UHF band, the high-pass circuit and the low-pass circuit output signals that are inverted in phase and equal in amplitude with respect to each other. Therefore, the antenna has high transmission and reception sensitivity in a wide frequency range, i.e., in the VHF and UHF bands. This makes it possible to provide an antenna having high transmission and reception sensitivity in a wide frequency range.

Abstract: A coupling antenna has a ground plane, a main radiating assembly and a secondary radiating assembly. The main radiating assembly is mounted on the ground plane and has a substrate, a feeding-and-coupling assembly and a shorting member. The feeding-and-coupling assembly has a feeding member, a coupling member and an extension member. The second radiating assembly is mounted on the ground plane, is connected to the main radiating assembly and has a first radiating patch and a second radiating patch. With the extension member and the first and second radiating patches, operating bandwidth of the coupling antenna is improved.

Abstract: An antenna structure includes a ground element, a first transmitting element and a second transmitting element. The first transmitting element transmits a first wireless signal, and comprises a first connecting portion and a first radiation portion. The first connecting portion is connected to the ground element and the first radiation portion. The second transmitting element transmits a second wireless signal and comprises a second connecting portion and a second radiation portion. The second connecting portion is connected to the ground element and the second radiation portion. The second connecting portion is shorter than the first connecting portion, and the second radiation portion is shorter than the first radiation portion.

Abstract: A multiple-band monopole coupling antenna includes a dielectric board, a low frequency antenna and a high frequency antenna. The low frequency antenna and the high frequency antenna are located on the front of the dielectric board. The length of the low frequency antenna equals to the half length of the low frequency waves and can receive and transmit two low frequency waves and a high frequency wave. The length of the high frequency antenna equals to the quarter length of the high frequency waves. The high frequency antenna is adjacent to the low frequency antenna and couples with the low frequency antenna while the low frequency antenna is receiving or transmitting signal. Thus, the high frequency antenna can receive and transmit three high frequency waves. The multiple-band monopole coupling antenna can receive and transmit all frequency bands, which are used in the mobile communication.

Abstract: A conductive metal frame attached to an upper case is electrically connected to hinge metal member. The hinge metal member is connected to a hinge metal member by a rotary shaft in a rotatable manner. The hinge metal member, a further hinge metal member, and the rotary shaft are made of conductive metal so that electric continuity is obtained at contact points thereamong. The further hinge metal member is connected to a matching circuit on a circuit board via a feedpoint terminal. A conductor element is connected to a ground pattern of the circuit board at a position close to a point at which the matching circuit is grounded. The structure as described above provides a folding portable wireless unit that can secure a high antenna performance in a calling state and a waiting state.

Abstract: A built-in antenna having a center feed structure for wireless terminal. The antenna includes: a feeding means for providing an electromagnetic signal; and a radiating means for radiating the electromagnetic signal, wherein the feeding means is located on a point ranging from a midpoint of the antenna. The antenna radiates a nondirectional signal and can be embedded in a wireless terminal.

Abstract: An antenna including a rectangular ground plane, a feed point disposed in a vicinity of a corner of the ground plane, an antenna element coupled to the feed point, and a parasitic element coupled to the ground plane. In this antenna, the shortest length from the feed point to a distant narrow side of the ground plane and a shortest length from the feed point to a tip of the parasitic element via the ground plane have substantially the same electrical length. Such a configuration can correspond to a small and thin size and reduce SAR easily.

Abstract: A planer antenna includes first and second planer helical antennas and a ground pattern. The first planer helical antenna has a first axial orientation and includes first and second helical conductive patterns on first and second surfaces of a supporting substrate. The second planer helical antenna has a second axial orientation and includes the first and second helical conductive patterns on the first and second surfaces of the supporting substrate. The ground pattern is on the second surface of the supporting substrate and provides a ground connection for the first and second planer helical antennas. The ground pattern is approximately centered at an intersection of the first and second axial orientations and the first and second planer helical antennas are off-center of the intersection of the first and second axial orientations.

Abstract: An antenna ground structure, for use in an electronic apparatus includes an antenna main body and electrically conductive plastic material connecting the antenna main body is a metal frame of the electronic apparatus to provide an electrical connection between the antenna main body and the metal frame. Better electrical characteristics can be provided to the antenna main body through the antenna ground structure. The manufacturing process is further improved.

Abstract: A telescoping antenna is disclosed having a plurality of telescoping hollow elements, including an inner-most hollow element. A button latches onto the top of the inner-most element. The inner-most element also includes a tab for preventing its full retraction into the other hollow elements. A wire antenna element is connected to the button, extends through the hollow elements, and is operably connected to a retracting mechanism. The button can be detached from the hollow elements in order to extend the wire antenna elements from out of the hollow elements. The wire antenna element is electrically connected to the receiver circuit such that the wire can act as a long-wire antenna of a calculable radio frequency (RF) resonance when extracted to a particular length.

Abstract: An antenna comprises an external high-band portion and an internal low-band portion. The external high-band portion reduces energy dissipation from nearby components, and the internal low-band portion reduces the phantom head effect. The antenna combines the external high-band portion and the internal low-band portion, utilizing the advantages of the two portions to benefit the receiving efficiency of the antenna.

Abstract: A multi-band antenna structure includes a ground plane, a first radiation metal arm, a first shorted parasitic arm and a second shorted parasitic arm. The first radiation metal arm is connected to a main transmitting antenna and has a first feed point for connecting a first feed line. The first shorted parasitic arm extends to the outside from the ground plane. The first shorted parasitic arm is between the first radiation metal arm and the ground plane for resonantly coupling the first radiation metal arm at a first band. The second shorted parasitic arm also extends to the outside from the ground plane. The second shorted parasitic arm is between the first radiation metal arm and the first shorted parasitic arm for resonantly coupling the first radiation metal arm at a second band.

Abstract: A small sized structure for a plurality of resonance frequency bands in a PIFA antenna system for at least two mobile frequency bands distant from each other including a ground connection and a HF power supply connection. The PIFA antenna system includes at least two antenna branches which are disposed essentially side-by-side and in parallel to each other in the form of a strip and are connected to each other at a base thereof in order to serially connect the antenna branches which extend at a predetermined distance from each other, thereby forming a slit and are provide with straight segments for producing a capacitance coupling between the branches. The ground connection is preferably arranged at the free end of one of the antenna branches, the HF power supply connection is mounted on the external edge of the branch of the PIFA antenna structure provided with the ground connection.

Abstract: An electronic device, such as a mobile radiotelephone, includes a dual antenna structure with a selectively actuatable phase shifter disposed therebetween. When the selectively actuatable phase shifter is selected, signals received by the first and second antennas are substantially out of phase. When the selectively actuatable phase shifter is not selected, signals received by the first and second antennas are substantially in phase. The dual antennas are coupled to a first electrical circuit disposed in a first section of the device. A second electrical circuit is disposed within a second section of the device. An impedance element, for example an inductor, couples the first and second electrical circuits and is disposed in a substantially symmetric location between the first and second electrical circuits. Working in combination, when the selectively actuatable phase shifter is selected, an antenna pattern of the device becomes substantially azimuthal with a null at a top central location.

Abstract: A broadband antenna for wireless communication system, the broadband antenna includes a radiating element, a grounding element and a connecting element for connecting the radiating element and the grounding element. The radiating element has a U-shaped structure, a V-shaped structure or an L-shaped structure. The broadband antenna of the present invention has wider frequency bandwidth and higher antenna efficiency.

Abstract: An apparatus (10, 30, 40, 50) is provided that relates to nanotubes as radiation elements for antennas and phased arrays, and more particularly to a macro-sized RF antenna for mobile devices. The antenna comprises a plurality of nanostructures (16), e.g., carbon nanotubes, forming an antenna structure on a substrate (12), and a radio frequency signal apparatus formed within the substrate (12) and coupled to the plurality of nanostructures (16). The radiation element length of a nested multiwall nanotube (161) of an exemplary embodiment may be tuned to a desirable frequency by an electromagnetic force (163).

Abstract: A circuit board has a first face and a second face opposite to the first face. An electronic component is mounted on the second face. An insulative sheet is disposed between the first face of the circuit board and an antenna and having an electromagnetic shielding property.