Chi Mei Communication Systems, Inc.

Chiun Mai Communication Systems, Inc.

Hsi-Chieh Chen

Tun-Yuan Tsou

Chih-Ho Lee

Cho-Kang Hsu

Chien-Chang Liu

Kun-Lin Sung

Ting-Chih Tseng

Chang-Ching Huang

Yi-Fang Lin

Peng-Yu Lai

An antenna structure includes a first antenna with a first feed point feeding current, a first radiating portion, a second radiating portion, and a first ground point. The first radiating portion is electrically connected to the first feed point and receives radiation signals in a first frequency band. The second radiating portion is electrically connected to the first feed point and receives and sends radiation signals in a second frequency band. The first ground point is spaced apart from the first feed point and is electrically connected to the second radiating portion.

Antenna structure and wireless communication device using same

An antenna structure includes a metallic member, a radiating portion, and a second matching circuit. The metallic member includes a front frame, a backboard, and a side frame. The side frame defines a slot. The front frame defines a first gap, a second gap, and a fourth gap communicating with the slot and extending across the front frame. A portion of the front frame between the first gap and the second gap forms a first radiating section; another portion between the second gap and the fourth gap forms a third radiating section. The radiating portion crosses the second gap and connects to the first radiating section and the third radiating section; an end of the second matching circuit electrically connects to the radiating portion, the other end connects to a ground. A wireless communication device using the antenna structure is provided.

An antenna structure includes a metallic member, a first matching circuit, and a second matching circuit. The metallic member includes a front frame, a backboard, and a side frame. The side frame defines a slot. The front frame defines a first gap and a second gap communicating with the slot and extending across the front frame. A portion of the front frame between the first gap and the second gap forms a first radiating section. One end of the first feed portion connects to the first radiating section, the other end connects to a first feed source and a second feed source through an extractor of the first matching circuit; an end of the first radiating section adjacent to the second gap connects to a ground through an third inductor and an third capacitor of the second matching circuit. A wireless communication device using the antenna structure is provided.

An exemplary antenna module includes a metal unit, a ground unit, a feed unit, and a resonating unit. The metal unit is a metal housing or a metal sidewall of a wireless communication device. One end of the ground unit is connected to the metal unit and another end of the ground unit is grounded. One end of the feed unit is connected to the metal unit and another end of the feed unit is connected to a feed point of the wireless communication device. The resonating unit and the metal unit cooperatively generate a resonating, thereby receiving/sending wireless signals in corresponding frequency bands.

Antenna module

An antenna structure includes a feed end, a grounding end, at least one main radiator, and at least one coupling radiator. The grounding end is separated from the feed end. The at least one main radiator is connected to the feed end. The at least one coupling radiator is connected to the grounding end. Current on the feed end is coupled to the grounding end, and current on the least one main radiator is coupled to the at least one coupling radiator.

Antenna structure

A dual-band antenna includes a radiator unit. The radiator unit includes a base portion, an extension portion extending from the base portion, a connecting portion extending from the extension portion, a transition portion extending from the connecting portion, and a u-shaped portion extending from the transition section. The connecting portion, the extension portion, and the base portion define a first slot. The u-shaped portion defines a second slot.

Dual-band antenna

A global positioning system antenna includes a radiator. The radiator includes a base section, an extension section connected to an edge of the base section, a first curved section connected to an edge of the extension section, and a second curved section connected to a distal end of the first curved section. The first curved section and the base section define a slot therebetween. The second curved section defines a first gap and a second gap thereon. The first gap and the second gap face each other.

Global positioning system antenna

An antenna module for a portable device includes a first antenna section, a second antenna section, a third antenna section, a feed section, and a ground section. The first antenna section and the third antenna section form a first groove. The feed section and the ground section are parallel to each other. The first antenna section and the second antenna section jointly connect with the feed section.

A demagnetization circuit for reducing interference in a mobile phone includes a wave filter, a demagnetization circuit and an audio playing circuit. The wave filter is configured to filter a received audio signal from the mobile phone. The wave filter includes an input that receives the audio signal, and an output. The demagnetization circuit is structured and arranged to generate an opposite magnetic field to that of the mobile phone to reduce pulse magnetic fields generated by the mobile phone.

Growing community of inventors

Taipei, Taiwan

Hsi-Chieh Chen