Ralink Technology Corporation

Mediatek Corporation

Min-Chung Wu

Shao-Chin Lo

Xin-Chang Chen

The present invention discloses a wireless device, which includes a substrate and an antenna. The antenna includes a printed antenna element and a 3-dimensional antenna element. The printed antenna element is printed on the substrate, while the 3-dimensional antenna element is disposed on the substrate and coupled to the printed antenna element. The printed antenna element and the 3-dimensional antenna element jointly have a physical length of a desired frequency.

Wireless device

The present invention discloses a wireless device. The wireless device includes a housing, formed by a metal material, a wireless module disposed inside the housing, and an antenna, disposed outside the housing, coupled to the wireless module via a external socket interface disposed on the housing, for transmitting and receiving signals corresponding to the wireless module.

A flexible transmission device, for transmitting radio-frequency (RF) signals between a first communication module and a second communication module in a communication device, comprising a flexible substrate; a first metal sheet, formed on a plane of the flexible substrate and coupled between ground terminals of the first communication module and the second communication module; and a second metal sheet, formed on a plane of the flexible substrate different from the first metal sheet, and coupled between signal terminals of the first communication module and the second communication module, for transmitting the RF signals.

Flexible transmission device and communication device using the same

The present invention discloses a wireless communication module, comprising a substrate; at least one wireless module, disposed on the substrate; and a module which does not emit wireless signals can be disposed on the substrate as well. The wireless communication module forms a compact structure and removes the need for RF shielded coaxial cables within the communication module. The present invention further discloses a portable device, which comprises a display part comprising a communication module; and a host part coupled to the display part; wherein the communication module is deposited on top of display part for better reception.

Wireless communication module, portable device using the same and method for manufacturing the same

The present invention discloses a flexible transmission device, for transmitting radio-frequency (RF) signals between a first communication module and a second communication module in a communication device. The flexible transmission device includes a flexible substrate; a first metal sheet, formed on the flexible substrate and coupled between ground terminals of the first communication module and the second communication module; a second metal sheet, formed on the flexible substrate and coupled between the ground terminals of the first communication module and the second communication module; and a third metal sheet, formed on the flexible substrate and between the first metal sheet and the second metal sheet, and coupled between signal terminals of the first communication module and the second communication module, for transmitting the RF signals.

An electronic device with an embedded three-dimensional antenna is disclosed. The electronic device includes a printed circuit board (PCB) and an embedded three-dimensional antenna. The embedded three-dimensional antenna includes a radiation element and a connection element. The connection element includes a first connection part and a second connection part. The first and second connection parts are coupled to the PCB, and utilized for transferring signals of the embedded three-dimensional antenna to the PCB. The first and second connection parts further clamp the PCB to attach the embedded three-dimensional antenna on the PCB.

Electronic device with embedded antenna

The present invention discloses a smart antenna system for a portable device. The smart antenna system includes a plurality of directional antennas, disposed at a plurality of positions of the portable device, having a plurality of directional radiation patterns corresponding to a plurality of areas; wherein all of the plurality of directional radiation patterns substantially form an omni directional radiation pattern.

Smart antenna system

A multi-antenna for a multi-input multi-output wireless communication system includes a substrate, a first planar antenna formed on the substrate along a first direction, a second planar antenna formed on the substrate along a second direction, and a vertical antenna including a conductor formed on the substrate and between the first planar antenna and the second planar antenna, and a radiator perpendicular to the substrate and coupled to the conductor.

Multi-antenna for a multi-input multi-output wireless communication system

A printed dual-band Yagi-Uda antenna is disclosed, which includes a substrate, a first driver, a first director, a second driver and a reflector. The first driver is formed on the substrate, and is utilized for generating a radiation pattern of a first frequency band. The first director is formed at a side of the first driver on the substrate, and is utilized for directing the radiation pattern of the first frequency band toward a first direction. The second driver is formed between the first driver and the first director on the substrate, and is utilized for generating a radiation pattern of a second frequency band. The reflector is formed at another side of the first driver on the substrate, and is utilized for reflecting both the radiation patterns of the first frequency band and the second frequency band toward the first direction.

Printed dual-band Yagi-Uda antenna and circular polarization antenna

A communication device with an embedded antenna includes a printed circuit board and an embedded antenna including at least one radiating unit, at least one feeding unit, where each feeding unit is coupled to a corresponding one of the at least one radiating unit and the printed circuit board, and a connecting unit coupled to the at least one radiating unit including a first connecting portion and a second connecting portion. The connecting unit and the at least one radiating unit form a loop structure such that the embedded antenna is capable of covering one side of the printed circuit board.

Communication device with embedded antenna

A broadband coupling filter for generating a notch filtering effect is disclosed. In the broadband coupling filter, a substrate includes a first layer, a second layer and a third layer. A first signal terminal, a second signal terminal, and a block transmission line are formed in the first layer, wherein the first signal terminal is used for receiving a signal, and the second signal terminal is used for outputting a filtering result of the signal. A grounding plate is formed in the second layer, having a hole. A third signal terminal, a forth signal terminal and a second block transmission line are formed in the third layer. A connection unit is further formed in the third layer, for connecting the third signal terminal and the forth signal terminal.

Broadband coupling filter

A feeding device for a smart antenna includes a signal reception terminal, a first antenna feeding terminal, a second antenna feeding terminal, a power divider, and a switching circuit. The signal reception terminal is utilized for receiving a transmitting signal. The first antenna feeding terminal and the second antenna feeding terminal are utilized for outputting feeding signals to the two antennas, respectively. The power divider, having a first input port, a second input port, a first output port, and a second output port, is utilized for distributing energy received by the first input port or the second input port equally to the first output port and the second output port, and making signals of the first output port and the second output port having 90 degree phase difference. The switching circuit performs switching operations to control electrical connections of the power divider according to a control signal.

Feeding device for smart antenna

A power divider includes a substrate, a signal reception terminal formed in a first layer of the substrate for receiving signals, a first output terminal formed in the first layer for outputting radio-frequency (RF) signals, a matching terminal formed in a third layer of the substrate, a second output terminal formed in the third layer for outputting RF signals, a grounding plate formed in a second layer of the substrate, surrounding a hole and forming a circular shape, a first block transmission line formed at a position corresponding to the hole in the first layer and coupled to the signal reception terminal and the first output terminal, and a second block transmission line formed at a position corresponding to the hole in the third layer, coupled to the matching terminal and the second output terminal, and having a shape identical to a shape of the first block transmission line.

Growing community of inventors

Taoyuan County, Taiwan

Min-Chung Wu