A wireless communication device includes an antenna resonance circuit and a wireless IC element. The antenna resonance circuit includes a loop-shaped antenna that performs wireless communication by generating a magnetic field and series inductors connected in series to the loop-shaped antenna. The antenna resonance circuit has a resonant frequency corresponding to a carrier frequency. The wireless IC element is connected to the antenna resonance circuit and processes transmission and reception signals. An inductance value of the series inductors is larger than an inductance value of the loop-shaped antenna, and the series inductors are covered with a magnetic material.

An image forming apparatus includes a housing, a communication board, and a display device. The housing has an upper end portion, a front end portion, and a rear end portion. The front end portion and the rear end portion define a frontward/rearward direction. The communication board is provided on the upper end portion and includes an antenna for near field wireless communication. The display device is provided on the upper end portion. The display device and the antenna are arrayed on a straight line extending in the frontward/rearward direction such that the antenna is positioned frontward of the display device.

An image forming apparatus includes a housing, a communication board, and a display device. The housing has an upper end portion, a front end portion, and a rear end portion. The front end portion and the rear end portion define a frontward/rearward direction. The communication board is provided on the upper end portion and includes an antenna for near field wireless communication. The display device is provided on the upper end portion. The display device and the antenna are arrayed on a straight line extending in the frontward/rearward direction such that the antenna is positioned frontward of the display device.

Provided are an antenna device, a method of manufacturing the same, and an electronic apparatus having the antenna device. The antenna device includes: an insulating substrate; a first antenna pattern formed on one surface of the insulating substrate; and a second antenna pattern formed on the other surface of the insulating substrate and connected to the first antenna pattern.

There is provided an antenna structure for a radio frequency identification (RFID) reader. The antenna structure includes a substrate, and an antenna structure disposed on the substrate. The antenna includes a peripheral frame portion, a first strip section disposed at a first side of the peripheral frame portion, and a second strip section disposed at a second side of the peripheral frame portion. In particular, the first strip section and the second strip section each includes multiple spaced-apart strip portions extending from a first part of the peripheral frame portion to a second part of the peripheral frame portion. There is also provided a method of manufacturing the antenna structure, an RFID reader system including the antenna structure, and an RFID system including the RFID reader system and an RFID tag.

There is provided an antenna structure for a radio frequency identification (RFID) reader. The antenna structure includes a substrate, and an antenna structure disposed on the substrate. The antenna includes a peripheral frame portion, a first strip section disposed at a first side of the peripheral frame portion, and a second strip section disposed at a second side of the peripheral frame portion. In particular, the first strip section and the second strip section each includes multiple spaced-apart strip portions extending from a first part of the peripheral frame portion to a second part of the peripheral frame portion. There is also provided a method of manufacturing the antenna structure, an RFID reader system including the antenna structure, and an RFID system including the RFID reader system and an RFID tag.

An RFID antenna comprises two or more electroconductive sheets of uniform planar size, being parallel and aligned, with a space therein between. Each electroconductive sheet comprises: a feed connection point, which receives an electrical current from a feed to supply current to the electroconductive sheet; and a return connection point, opposite and parallel to the feed connection point of the electroconductive sheet, which acquires current from the electroconductive sheet and transfers current to a return. The electrical circuit pathway created from the feed to the return is equal distance for each electroconductive sheet. The two electroconductive sheets are connected together to complete a circuit that causes direction of electrical flow in the one electroconductive sheet to be opposite to direction of electric flow in the other electroconductive sheet.

An RFID antenna comprises two or more electroconductive sheets of uniform planar size, being parallel and aligned, with a space therein between. Each electroconductive sheet comprises: a feed connection point, which receives an electrical current from a feed to supply current to the electroconductive sheet; and a return connection point, opposite and parallel to the feed connection point of the electroconductive sheet, which acquires current from the electroconductive sheet and transfers current to a return. The electrical circuit pathway created from the feed to the return is equal distance for each electroconductive sheet. The two electroconductive sheets are connected together to complete a circuit that causes direction of electrical flow in the one electroconductive sheet to be opposite to direction of electric flow in the other electroconductive sheet.

An antenna system is set in a substrate. The substrate includes a first floor, a second floor, a third floor, a fourth floor, and a ground plane. The antenna system further includes at least one radiation part, including a first radiation part, a second radiation part, and a third radiation part. The antenna system further includes at least one signal feed part set in the fourth floor, configured to feed electromagnetic wave signal. The feed part comprises a first feed part, a second feed part, and a third feed part. The antenna system 10 employs simple hierarchical structure, is low cost, and occupies a little space. The antenna system also has advantages of high gain, low loss, and high stability in 2.412 GHz˜2.472 GHz frequency band.

An antenna system is set in a substrate. The substrate includes a first floor, a second floor, a third floor, a fourth floor, and a ground plane. The antenna system further includes at least one radiation part, including a first radiation part, a second radiation part, and a third radiation part. The antenna system further includes at least one signal feed part set in the fourth floor, configured to feed electromagnetic wave signal. The feed part comprises a first feed part, a second feed part, and a third feed part. The antenna system 10 employs simple hierarchical structure, is low cost, and occupies a little space. The antenna system also has advantages of high gain, low loss, and high stability in 2.412 GHz˜2.472 GHz frequency band.