Seoul, South Korea
Seoul, South Korea

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Patent
Emw Co. | Date: 2014-12-22

An embedded antenna includes a power transfer pad connected to a circuit inside a portable terminal having a metal exterior, and a first radiation unit which is connected to the power transfer pad so as to radiate a signal of a first passband, and a second radiation unit which is connected to the metal exterior so as to radiate a signal of a second passband.


Disclosed are a magnetic sheet, a method of manufacturing the same and an antenna including the magnetic sheet. In the magnetic sheet manufactured by stacking a plurality of green sheets on top of each other and calcining the stacked plurality of green sheets, the plurality of green sheets are stacked after a different material layer is formed on a certain portion of both surfaces or one surface of at least one of the plurality of green sheets.


Patent
EMW Co. | Date: 2015-03-11

Disclosed are an antenna and a communication device including the same. The antenna includes a feeder, a first loop antenna that has an end connected to the feeder and the other end connected to a ground, and a second loop antenna that has an end connected to the feeder and the other end connected to the ground, and has an electrical length different from that of the first loop antenna, wherein an impedance matching line having a discontinuously different line width is formed in a partial area of the first loop antenna.


The present invention relates to a broadband circuit and a communication apparatus including the same. According to one embodiment of the present invention, a broadband circuit interposed between an antenna operating in a first service band and a power feeding unit therefor and allowing the antenna to operate in a second service band which is wider than the first service band, includes: a first line having one end connected to the power feeding unit; a second line having one end connected to one part of a ground surface; a first capacitor interposed between the other end of the first line and the other end of the second line; a third line having one end connected to the other part of the ground surface and being parallel to the first line; a fourth line having one end connected to the antenna and being parallel to the second line; a second capacitor interposed between the first and third lines; a first inductor interposed between the first and third lines and closer to the other ends of the first and third lines than the third capacitor; a fourth capacitor interposed between the second line and the fourth line; and a second inductor interposed between the second and fourth lines and closer to the other ends of the second and fourth lines than the fourth capacitor.


Patent
Emw Co. | Date: 2013-05-31

Disclosed are an antenna and a communication device including the same. The antenna includes a feeder, a first loop antenna that has an end connected to the feeder and the other end connected to a ground, and a second loop antenna that has an end connected to the feeder and the other end connected to the ground, and has an electrical length different from that of the first loop antenna, wherein an impedance matching line having a discontinuously different line width is formed in a partial area of the first loop antenna.


Patent
Emw Co. | Date: 2014-05-22

A phase lag cell and an antenna including the same are disclosed. A phase lag cell according to one embodiment of the present invention comprises: a plane reflector; a substrate spaced apart and positioned at a predetermined distance from the reflector; and a phase lag circuit formed at one side of the substrate such that L-shaped patterns are formed to be vertically and horizontally symmetrical around a cross-shaped slot, and a stub having a predetermined length is extended from the end of each L-shaped pattern.


Patent
Emw Co. | Date: 2015-01-12

A transmission type antenna includes a transmission type structure for transmitting and radiating an incident radio wave, a power feeding body for radiating the radio wave to the transmission type structure or receiving the incident radio wave, a drive shaft for moving or tilting the power feeding body, a body for providing a moving path of the power feeding body through the drive shaft, and a control unit, connected through the drive shaft to the power feeding body, for controlling the movement and tilt of the drive shaft to thereby determine the tilling direction of the power feeding body.


Patent
Emw Co. | Date: 2013-10-02

An antenna includes a substrate, a feed line formed on one surface of the substrate, a ground plane formed on the other surface of the substrate, a short-circuit stub that extends from a terminating end of the feed line and contacts the ground plane, and slits formed on the ground plane so as to cross the feed line.


Patent
EMW Co. | Date: 2014-12-03

Disclosed is an antenna including: a substrate; a feed line formed on one surface of the substrate; a ground plane formed on the other surface of the substrate; a short-circuit stub that extends from a terminating end of the feed line and contacts the ground plane; and slits formed on the ground plane so as to cross the feed line.


Patent
Emw Co. | Date: 2014-12-08

An antenna using a length-adjustable slit includes a power supply line connected to a ground pad and a power supply pad for receiving a power supply signal from a PCB, the ground pad being connected to a case, a radiator formed on the case, the radiator including at least one slit having a dielectric embedded in the slit, and a plurality of switching terminals for controlling the resonant frequency of the slit.

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