A system that incorporates teachings of the present disclosure may include, for example, a non-transitory computer-readable storage medium including computer instructions to obtain at least one operational parameter associated with a communication device and to adjust a steerable antenna of the communication device when the communication device does not satisfy an impedance threshold, where the satisfying of the impedance threshold is determined based on the at least one operational parameter. Additional embodiments are disclosed.

Method and apparatus for tuning a communication device

Methods for generating a look-up table relating a plurality of complex reflection coefficients to a plurality of matched states for a tunable matching network. Typical steps include measuring a plurality of complex reflection coefficients resulting from a plurality of impedance loads while the tunable matching network is in a predetermined state, determining a plurality of matched states for the plurality of impedance loads, with a matched state determined for each of the plurality of impedance loads and providing the determined matched states as a look-up table. A further step is interpolating the measured complex reflection coefficients and the determined matching states into a set of complex reflection coefficients with predetermined step sizes.

Methods for tuning an adaptive impedance matching network with a look-up table

Shared antenna structures for near-field communications and non-near-field communications circuitry

An electronic device includes a metal housing, a conductive member disposed adjacent to the metal housing, a plurality of ground parts including a first ground part electrically connected with a first point of the conductive member and a second ground part electrically connected with a second point of the conductive member, a ground plate electrically connected with the metal housing and electrically connected with the conductive member via the plurality of ground parts, and a feeding part electrically connected with the conductive member.

Electronic device comprising antenna

A system that incorporates teachings of the present disclosure may include, for example, a matching network including a tunable reactance circuit configured to be coupled to at least one of a transmitter portion and a receiver portion of a communication device, wherein the tunable reactance circuit is adjustable to a plurality of tuning states, and wherein the determination of a tuning state is based on parameters associated with a detected interference. Additional embodiments are disclosed.

Method and apparatus for managing interference in a communication device

A chargeable communication module is provided, which includes: a wireless power charging coil; a wireless communication coil being electrically isolated from the wireless power charging coil; and a magnetic body. The wireless power charging coil is disposed on a surface of the magnetic body. The wireless communication coil is arranged peripheral to the wireless power charging coil. A center of the wireless power charging coil is offset from a center of the wireless communication coil.

Non-contact wireless communication coil, transmission coil, and portable wireless terminal

A foldable portable wireless device is provided with a freely openable/closable mechanism wherein a lower case (101) is connected with an upper case (102) with a hinge section (103). In the foldable portable wireless device, a flexible cable (106) which connects a lower circuit board (104) with an upper circuit board (105) is arranged in the vicinity of the hinge section (103) at a prescribed distance from a power feeding section (112) of an antenna element (113) in a width direction of the foldable cellular phone. One end of a conductor element (114) is short-circuited in the vicinity of a connector (107), which connects the flexible cable (106) with the lower circuit board (104), by using a short-circuiting conductor (115). Thus, by the foldable portable wireless device, an energy quantity absorbed into the human head can be reduced without reducing power of the electric waves transmitted during a call.

Portable wireless device

Disclosed are a antenna device and a portable wireless terminal equipped with same that achieve low coupling and high gain properties in each of at least two frequency bands without increasing the number of power supply units in a configuration wherein a wireless circuit and two antenna elements that operate in the same frequency band are disposed within a portable wireless terminal. A first connection circuit (108) adjusts the mutual coupling impedance between a first antenna element (106) and a second antenna element (107) in a first frequency band in a manner so that the impedance cancels, reducing coupling deterioration between the antenna elements. A second connection circuit (111) adjusts the mutual coupling impedance between a first passive element (109) and a second passive element (110) in a second frequency band in a manner so that the impedance cancels, reducing the coupling degradation between the passive elements. Through this configuration, it is possible to achieve a low-coupling antenna operating at two frequencies in a portable wireless terminal.

Antenna device and portable wireless terminal equipped with same

A foldable portable radio apparatus having high antenna performance in different frequency bands, in both a state in which a housing is open and a state in which the housing is closed, and realizing down sizing and cost reduction. In the radio apparatus, an upper case (9) and a lower case (10) are connected by a hinge section (2) and the cases are pivoted about the hinge section (2). A conductive frame (1) is attached to the upper case (9), a circuit board (4) placed in the lower case (10) has a radio circuit (12), and a ground pattern is formed on the circuit board (4). The hinge section (2) has a hinge metal attachment (5) connected to the conductive frame (1), a hinge metal attachment (8) connected through a first power supply terminal (3) to a wiring pattern on the circuit board (4), and a rotation shaft (7) for rotatably supporting the metal attachments. A helical antenna device (14) fixed near the hinge section (2) is connected through a second power supply terminal (15) to the wiring pattern on the circuit board (4). Electric power is supplied to the first power supply terminal (3) and the second power supply terminal (15) from the radio circuit (12).

Foldable portable radio apparatus

In a folding type portable wireless unit, gain deteriorates sharply upon closure, in the case where an upper case is oscillated directly at the time of opening and used as an antenna in order to attain a wide band and a high gain. The folding type portable wireless unit comprises a first case, a second case, a coupling part for coupling the first and second cases to be opened/closed, a conductor element arranged in the first case, and a power supply element arranged in the second case. In the open state brought by the coupling part, the conductor element and the power supply element approach closely to each other and can be coupled electromagnetically at the time of power supply. In the closed state brought by the coupling part, the conductor element and the power supply element separate from each other as compared with the open state and they are not coupled electromagnetically at the time of power supply.

Hiroyuki Uejima

Papers

Non-contact wireless communication coil, transmission coil, and portable wireless terminal

Portable wireless device

Antenna device and portable wireless terminal equipped with same

Foldable portable radio apparatus

Folding type portable wireless unit