740results about How to "Improve antenna performance" patented technology

An antenna, including a planar dielectric substrate and a conductive ground plane formed on the substrate. A conductive monopole is formed on the substrate and has an end point located in proximity to a feed region of the ground plane. A conductive coupling element is formed on the substrate and is coupled to the ground plane at a coupling region of the ground plane. The coupling element is folded around the monopole.

A mobile terminal includes a metal frame including a base portion and an edge portion formed along the outer edge of the base portion, first and second cases bonded to the front and back sides of the metal frame so as to expose the edge portion to the outside, first and second waterproof layers formed between the cases and the metal frame, conductive members that operate a radiator for antennas, together with the edge portion, and are formed on one side of the second case, and feeding portions for feeding the conductive members, the feeding portions being disposed in an enclosed space formed by the waterproof layers.

An antenna device for transmitting / receiving RF waves to be arranged in a radio communication device, comprising: a carrier (10) having first and second surfaces carrying a radiating structure (20) on the first surface; a feed portion (25) being connectable to transceiver circuits of the radio communication device and being arranged on the carrier (10) and forming a part of the radiating structure (20); and a ground plane means. The carrier has, in a first plane essentially perpendicular to the first surface, a cross section where the first surface exhibits at least a first curved portion (12). Further, the carrier has, in a second plane essentially perpendicular to the first plane and essentially perpendicular to the first surface, a cross section where the first surface exhibits at least a second curved portion (11, 13). Moreover, at least two curved portions meet. Further a method for manufacturing an antenna device is disclosed. In the method, at least a part of the carrier is formed by means of a die having essentially the same shape as a portion of an inner wall of a housing of the radio communication device. Also a hand portable radio communication device, including an antenna device is disclosed.

Extendable ground arrangement for an antenna system in a radio communication device to be operating at within one or more frequency bands. The ground arrangement includes support means (1), e.g., a slide or flap, carrying conductive ground extension means (4). The support means has fastening means (5) for slidably or rotatably connecting the ground extension means to the radio communication device, wherein the ground extension means is adapted to radiate at at least said first frequency and to couple, e.g., capacitively, to main ground means located in the radio communication device adjacent to said first edge. When extended the extendable ground means provides improved gain and SAR reduction.

An antenna means for a portable radio communication device, in particular a hand-portable mobile telephone, having at least one radiating element that has a meandering and cylindrical configuration. This structure is specifically advantageous in combination with an extendable and retractable whip antenna and, when having two or more meandering radiating elements, in multi-band radiating structures. The antenna device is suitable for manufacturing in large quantities, for example by a flexible printed circuit board technique.

Provided is an antenna module package including a substrate, a wireless card payment antenna structure mounted on the substrate and including a first antenna chip and wireless card payment matching elements electrically connected to the first antenna chip, a near field communication (NFC) antenna structure mounted on the substrate, sharing the first antenna chip, and including an extended NFC antenna loop and NFC matching elements electrically connected to the first antenna chip, and a wireless charging antenna structure mounted on the substrate and including a second antenna chip, and an extended wireless charging antenna loop and wireless charging matching elements electrically connected to the second antenna chip.

An antenna, including a planar dielectric substrate and a conductive ground plane formed on the substrate. A conductive monopole is formed on the substrate and has an end point located in proximity to a feed region of the ground plane. A conductive coupling element is formed on the substrate and is coupled to the ground plane at a coupling region of the ground plane. The coupling element is folded around the monopole.

An antenna having feedback elements for improving the isolation characteristic of the antenna by generating a feedback signal that operates to cancel an undesired leakage signal coupling from an input port to an output port of the antenna system. The antenna can include a distribution network for electrically coupling the electromagnetic signals from and to radiating elements and a radome structure for protecting both the radiating elements and the distribution network from exposure to the operating environment of the antenna. The radome structure can include feedback elements for electrically cooperating with the radiating elements of the antenna system. Electromagnetic signals transmitted by the radiating elements can be coupled to the feedback elements, which results in the feedback elements resonating at the frequency of the transmitted electromagnetic signals. These resonating feedback elements can generate a feedback signal that, in turn, is received by the radiating elements. The feedback signal, when combined with the undesired leakage signal at the output port, cancels both signals, thereby achieving an antenna system having an improved isolation.

PCT No. PCT / SE96 / 01488 Sec. 371 Date Jun. 1, 1998 Sec. 102(e) Date Jun. 1, 1998 PCT Filed Nov. 15, 1996 PCT Pub. No. WO97 / 18600 PCT Pub. Date May 22, 1997Antenna means for a portable radio communication device is disclosed. It includes a radiating first element having a meander geometry being relatively flat and without any complete loops or turns, a radiating second element having a meander, helical, rectangular or straight geometry. The first and second elements interact to provide one or more modes of antenna operation and the first element feeds the second element in at least one operational mode. Further, an extendable and retractable feature of the second element is disclosed, as well as an antenna adapter for external connection of the inventive antenna means to an auxiliary antenna.

An antenna apparatus for a portable terminal having a main board is provided. The antenna apparatus includes a main antenna that electrically connects to a feed line of the main board. A metal frame is constructed as part of a case frame forming an exterior of the portable terminal The metal frame is divided into first and second parts that are separated. The first part electrically connects to the main antenna or to the main board feed line, and is designed to radiate. The second part electrically connects to a ground surface of the main board. The metal frame enhances overall antenna performance rather than causing degradation through interference.

A portable computing device is disclosed. The portable computing device can take many forms such as a laptop computer, a tablet computer, and so on. The portable computing device can include at least a single piece housing. The single piece housing can be machined from a single billet of material, such as a billet of aluminum. The single piece housing can include ledges with a surface receiving a trim bead and a cover. Corner brackets can be attached to the single piece housing to improve the damage resistance of the housing.

A timepiece with a wireless function, including a movement for displaying time; a conductive case that holds the movement; a crystal that is disposed on the face side of the case and covers the face side of the movement; a conductive plate that is electrically conductive, disposed between the movement and the crystal, and reflects radio waves; and an antenna that has a substantially annular, conductive antenna electrode, and is disposed along the outside edge of the conductive plate between the conductive plate and the crystal.

A method for intelligently switching on / off an antenna of a mobile terminal and a corresponding mobile terminal are provided. A method includes: detecting a current working frequency band and a surrounding environment of a terminal; and according to a preset correspondence among an antenna radiation unit, an environmental condition, and the current working frequency band, changing impedance characteristics of a parasitic unit radiator. Another method includes: detecting a current working frequency band of a terminal; and according to a preset correspondence between an antenna radiation unit and the current working frequency band, changing impedance characteristics of a parasitic unit radiator. Another method includes: detecting a current surrounding environment of a terminal; and according to a preset correspondence between an antenna radiation unit and an environmental condition, changing impedance characteristics of a parasitic unit radiator. The terminal includes: a detection unit, an antenna control unit, and an antenna radiation unit.

A device and a method for controlling a transmission power in a mobile terminal are provided. The device includes an antenna set in an optimized state, a memory including a power control table that includes transmission power control data for satisfying a Specific Absorption Rate (SAR) standard in a state where efficiency of the antenna is optimized, a sensor for detecting a distance between the mobile terminal and a user, a controller for receiving distance data from the sensor and for outputting transmission power control data corresponding to the distance data by referring to the power control table, and a power amplifier connected between a transmitter and the antenna for controlling transmission power of a signal according to the transmission power control data and for outputting the signal to the antenna.

An antenna system is integrated into a cover or accessory and adapted to couple to an antenna in a host device to improve transmission and reception of signals. The antenna system can be passive or active, with the active antenna system designed to amplify coupled signals on the integrated antenna elements in the cover or accessory. Single or multiple frequency bands can be improved with the integrated antenna system, and multiple antennas in the host device can be coupled to and improved. The antenna system can couple to the existing antennas in the host device by capacitive coupling, i.e. no physical contact required, or a connector can be designed into the cover or accessory containing the integrated antenna system that makes contact to electrical ground of the host device or power supply signals or other control signals.

Disclosed is an antenna assembly including a substrate, and a wireless charge antenna pattern on the substrate. The wireless charge antenna pattern has a sectional surface including a plurality of inner angles in which two inner angles are different from each other. The antenna assembly includes a wireless communication antenna pattern formed on the substrate and provided at an outside of the wireless charge antenna pattern. The wireless communication antenna pattern has a plurality of inner angles at a sectional surface thereof, and a plurality of angle values of the inner angles provided at the sectional surface of the wireless communication antenna pattern correspond to a plurality of angle values of the inner angles provided at the sectional surface of the wireless charge antenna pattern, respectively.

An antenna device for improving antenna performance of a portable terminal having a metal edge installed on a case frame is disclosed. The antenna device includes a main board equipped with a power supply end for supplying power and a ground surface for grounding the main board, a loop radiator connected with the power supply end of the main board at first end and connected with the ground surface of the main board at a second end, and a metal body disposed along an edge of the portable terminal and electrically connected with the ground surface of the main board.

An implantable medical device has a conductive housing, electronic circuitry for the operation of the implantable medical device, and radio frequency circuitry for transmitting and / or receiving radio frequency signals, the electronic circuitry and the radio frequency circuitry being interconnected and arranged within in the housing. The housing has at least one slot therein, and a slot feed operatively interconnected between the radio frequency circuitry and the slot. The electrically conductive housing provided with the at least one slot is operable as an antenna for the radio frequency signals. The electric circuitry, the radio frequency circuitry, and the interconnection can be enclosed by the housing so that they are shielded from external radiation in any direction.

A planar inverted F antenna includes a radiation portion to receive or transmit a radio signal, a short portion having one end connecting to the radiation portion to brace the radiation portion, a ground portion connecting to the short portion on another end, and a feed section located between the radiation portion and the ground portion, wherein the feed section has one end connecting to the radiation portion and another end directed towards the ground portion but not connected to the ground portion. The radiation portion, short portion, ground portion and feed section are formed in an integrated manner.

An implantable medical device has a housing containing electronic operating circuitry for the operation of the implantable medical device, and radio frequency circuitry for transmitting and / or receiving radio frequency signals. The implantable medical device has at least one surface portion made of an electrically conductive material. At least one slot is provided in the surface portion of the electrically conductive material and a slot feed is operatively interconnected between the radio frequency circuitry and the slot. The surface portion of the electrically conductive material and provided with the slot is adapted to operate as a transmitting and / or receiving antenna for the radio frequency signals.

A wireless soil sensor for using a RF frequency for performing soil moisture measurements is disclosed herein. The sensor preferably includes a sensing component integrated directly with a radio and a microcontroller. The wireless soil sensor is designed to be buried underground and to transmit to above ground receivers.

A portable computing device is disclosed. The portable computing device can take many forms such as a laptop computer, a tablet computer, and so on. The portable computing device can include at least a single piece housing. The single piece housing can be machined from a single billet of material, such as a billet of aluminum. The single piece housing can include ledges with a surface receiving a trim bead and a cover. Corner brackets can be attached to the single piece housing to improve the damage resistance of the housing.

An antenna device attains good antenna performance using at least one or more metal members installed in a portable terminal The antenna device includes a main board equipped with a power supply part for supplying power, a slot part which is positioned in at least one or more metal members or is formed by a combination of the metal members, and a power supply antenna member for receiving power from the power supply part and which is electromagnetically coupled with the slot part.

The invention discloses an antenna performance optimization method and electronic equipment, and aims at solving the technical problem of poor antenna performance of a mobile terminal due to hand holding in the prior art. The method comprises the following steps: obtaining a holding mode of the electronic equipment; if the holding mode is a first holding mode, controlling an antenna radiation body of the electronic equipment to be connected with a feeding point arranged in a first region; and if the holding mode is a second holding mode, controlling the antenna radiation body to be connected with a second feeding point arranged in the second region. When a user holds the electronic equipment in the first holding mode, the second region is the region held by the user; and when the user holds the electronic equipment in the second holding mode, the first region is the region held by the user.

A wireless communication device is provided with a multipart case, having electrical interfaces that encourage the flow of radiation frequency ground current between case sections. The multipart case has a first planar groundplane section and a second planar groundplane section. For example, the multipart case design may be a slider, double slider, multiple hinge, flip, or swivel case. The second planar groundplane is substantially coplanar with the first groundplane in a case open position, and substantially bi-planar with the first groundplane in a case closed position. The wireless device also includes an antenna located adjacent the second groundplane section first end. A first and a second interface electrically connect the first groundplane section to the second groundplane section second end (the end opposite the antenna).

Regardless of a user's hand holding condition, it is possible to obtain excellent antenna performance in both of folded and unfolded calling conditions. A folder type mobile radio apparatus includes an upper case 1301 having a first antenna element made of a metal plate 1305 , a lower case 1302 having a second antenna element made of a circuit board 102 , a hinge portion 1303 pivotably connecting the upper and lower cases 1301 and 1302 , a first circuit board 101 having a ground pattern provided in an end side near the hinge portion 1303 in the lower case, an antenna switching unit 103 for selecting one of a first feed means for feeding the first antenna element for the radio circuit 1314 on the first circuit board 101 or a second feed means for feeding the second antenna element.

One or more feedback elements generate a feedback signal in response to a transmitted signal outputted by each radiator of the antenna system. This feedback signal is received by each radiator, also described as a radiating element, and combined with any leakage signal present at the port of the antenna. Because the feedback signal and the leakage signal are set to the same frequency and are approximately 180 degrees out of phase, this signal summing operation serves to cancel both signals at the output port, thereby improving the port-to-port isolation characteristic of the antenna. Each feedback element can include a photo-etched planar metal strip supported by a planar dielectric card made from printed circuit board material. Such feedback elements can provide a high degree of repeatability and reliability in that the manufacturing of such feedback elements can be precisely controlled.

The invention provides an antenna structure, a mobile terminal and an antenna mode switching method, wherein the antenna structure of the mobile terminal comprises an antenna unit, a first sensor, a second sensor and a switching control circuit; the antenna unit comprises an upper branch antenna, a first lower branch antenna and a second lower branch antenna of which the deployment positions are not overlapped mutually; the first sensor is used for detecting whether the first lower branch antenna is blocked and for outputting a first detection result; the second sensor is used for detecting whether the second lower branch antenna is blocked and for outputting a second detection result; and the switching control circuit is connected between a radio frequency front end of the mobile terminal and the antenna unit and used for controlling the connection and disconnection among various antennae in the radio frequency front end and the antenna unit. With adoption of the antenna structure, the problem that the signal reception capability of the mobile terminal is low when the lower branch antenna is blocked can be solved, the antenna property of the mobile terminal is improved and therefore the user experience is improved.