Abstract: An antenna structure of reduced size but able to cover first, second, and third LTE-A bands together with WI-FI and BLUETOOTH frequencies includes a metal frame defining at least two gaps. The gaps extend and pass completely through the metal frame, and divide the metal frame into radiating portions. At least one feeding portion is electrically coupled to each radiating portion. Each radiating portion can simultaneously activate first, second, and third operating modes for the radiation of signals in first, second, and third frequency bands.

Abstract: An antenna structure includes a housing, a feeding portion, and a connecting portion. The housing defines a gap and a groove. The housing forms a radiating portion and a coupling portion through the gap and the groove. A portion of the housing between the feeding portion and the gap forms a first radiating section. The connecting portion is electrically connected to one end of the coupling portion adjacent to the gap. When the feeding portion supplies current, the current flows through the feeding portion and the first radiating section, and is coupled to the connecting portion through the gap to activate a first operating mode. When the feeding portion supplies current, the current flows through the feeding portion and the first radiating section, and is coupled to the coupling portion through the gap to activate a second operating mode.

Abstract: An antenna structure includes a housing, a first feed source, a ground portion, a radiator, and a second feed source. The housing 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 groove. A radiating portion and a coupling portion are divided from the housing by the slot, the first gap, the second gap, and the groove. The first feed source is electrically connected to the radiating portion. One end of the ground portion is electrically connected to the radiating portion and another end of the ground portion is grounded. The radiator is coupled with and apart from the coupling portion. The second feed source is electrically connected to the radiator and a current from the second feed source is coupled to the coupling portion through the radiator.

Abstract: An antenna structure of reduced size but able to cover first, second, and third LTE-A bands together with WI-FI and BLUETOOTH frequencies includes a metal frame defining at least two gaps. The gaps extend and pass completely through the metal frame, and divide the metal frame into radiating portions. At least one feeding portion is electrically coupled to each radiating portion. Each radiating portion can simultaneously activate first, second, and third operating modes for the radiation of signals in first, second, and third frequency bands.

Abstract: An antenna structure includes a housing, four feed sources, a first radiator, a second radiator, and a third radiator. The housing includes a first radiating portion and a second radiating portion. The first to third radiators are positioned in the housing. The first radiator is spaced apart from the second radiator. The four feed sources respectively connect to the first radiating portion, the second radiating portion, the first radiator, and the third radiator. The first radiating portion activates a first operation mode and a second operation mode. The second radiating portion activates a third operation mode. The first to third radiators activate a fourth operation mode, a fifth operation mode, and a sixth operation mode.

Abstract: An antenna structure includes a metallic member, a first feed portion, a first ground portion and a second ground portion. 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. Current enters the first radiating section from the first feed portion and flows through the first radiating section and towards the first gap and the second gap to generate radiation signals in a first frequency band and a second frequency band. The frequencies of the first frequency band are higher than the frequencies of the second frequency band. A wireless communication device using the antenna structure is provided.

Abstract: An antenna structure includes a housing, a feeding portion, and a connecting portion. The housing defines a gap and a groove. The housing forms a radiating portion and a coupling portion through the gap and the groove. A portion of the housing between the feeding portion and the gap forms a first radiating section. The connecting portion is electrically connected to one end of the coupling portion adjacent to the gap. When the feeding portion supplies current, the current flows through the feeding portion and the first radiating section, and is coupled to the connecting portion through the gap to activate a first operating mode. When the feeding portion supplies current, the current flows through the feeding portion and the first radiating section, and is coupled to the coupling portion through the gap to activate a second operating mode.

Abstract: An antenna structure includes a metallic member and an extending section. 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 radiating section. Current enters the first radiating section from the first feed portion and flows through the first radiating section and towards the first gap and the second gap to generate radiation signals in a first frequency band and a second frequency band; the current flows through the extending section to generate radiation signals in a third frequency band. A wireless communication device using the antenna structure is provided.

Abstract: An antenna structure includes a metallic member including a front frame and a side frame. The side frame defines a slot. The front frame defines a second gap and a third gap communicating with the slot and extending across the front frame. A portion of the front frame between the second gap and the third gap forms a first radiating section. Current enters the first radiating section from the first feed portion, flows through the first radiating section and towards the second gap to generate radiation signals in a first frequency band, flows through the first radiating section and towards the third gap to generate radiation signals in a second frequency band, and flows through the first radiating section and towards the second gap and the third gap to generate radiation signals in a third frequency band. A wireless communication device using the antenna structure is provided.

Abstract: An antenna structure includes a housing, four feed sources, a first radiator, a second radiator, and a third radiator. The housing includes a first radiating portion and a second radiating portion. The first to third radiators are positioned in the housing. The first radiator is spaced apart from the second radiator. The four feed sources respectively connect to the first radiating portion, the second radiating portion, the first radiator, and the third radiator. The first radiating portion activates a first operation mode and a second operation mode. The second radiating portion activates a third operation mode. The first to third radiators activate a fourth operation mode, a fifth operation mode, and a sixth operation mode.

Abstract: An antenna structure includes a housing, a first feed source, a ground portion, a radiator, and a second feed source. The housing 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 groove. A radiating portion and a coupling portion are divided from the housing by the slot, the first gap, the second gap, and the groove. The first feed source is electrically connected to the radiating portion. One end of the ground portion is electrically connected to the radiating portion and another end of the ground portion is grounded. The radiator is coupled with and apart from the coupling portion. The second feed source is electrically connected to the radiator and a current from the second feed source is coupled to the coupling portion through the radiator.

Abstract: An antenna structure includes a metallic member, a first feed portion, a first ground portion and a second ground portion. 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. Current enters the first radiating section from the first feed portion and flows through the first radiating section and towards the first gap and the second gap to generate radiation signals in a first frequency band and a second frequency band. The frequencies of the first frequency band are higher than the frequencies of the second frequency band. A wireless communication device using the antenna structure is provided.

Abstract: An antenna structure includes a metallic member including a front frame and a side frame. The side frame defines a slot. The front frame defines a second gap and a third gap communicating with the slot and extending across the front frame. A portion of the front frame between the second gap and the third gap forms a first radiating section. Current enters the first radiating section from the first feed portion, flows through the first radiating section and towards the second gap to generate radiation signals in a first frequency band, flows through the first radiating section and towards the third gap to generate radiation signals in a second frequency band, and flows through the first radiating section and towards the second gap and the third gap to generate radiation signals in a third frequency band. A wireless communication device using the antenna structure is provided.

Abstract: An antenna structure includes a metallic member and an extending section. 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 radiating section. Current enters the first radiating section from the first feed portion and flows through the first radiating section and towards the first gap and the second gap to generate radiation signals in a first frequency band and a second frequency band; the current flows through the extending section to generate radiation signals in a third frequency band. A wireless communication device using the antenna structure is provided.

Abstract: An antenna structure includes a metal member, a first antenna, a second antenna, a third antenna, and a fourth antenna. A gap is defined on the metal member to divide the metal member into a first frame assembly and a second frame assembly. The first frame assembly and the second frame assembly cooperatively form a receiving space for accommodating at least one electronic element. The first antenna, the second antenna, the third antenna, and the fourth antenna are received in the receiving space. The first antenna is electronically connected to the first frame assembly of the metal member. The third antenna and the fourth antenna are both electronically connected to the second frame assembly of the metal member.

Abstract: An antenna structure includes a feed portion, a ground portion, at least one metallic portion, and a radiating portion. The ground portion is spaced apart from the feed portion. The least one metallic portion is electrically connected to the ground portion. The radiating portion has a first end electrically connected to the feed portion and a second end electrically connected to the at least one metallic portion.

Abstract: An antenna structure includes a feed portion, a ground portion, at least one metallic portion, and a radiating portion. The ground portion is spaced apart from the feed portion. The least one metallic portion is electrically connected to the ground portion. The radiating portion has a first end electrically connected to the feed portion and a second end electrically connected to the at least one metallic portion.

Abstract: An antenna structure includes a metal member, a first antenna, a second antenna, a third antenna, and a fourth antenna. A gap is defined on the metal member to divide the metal member into a first frame assembly and a second frame assembly. The first frame assembly and the second frame assembly cooperatively form a receiving space for accommodating at least one electronic element. The first antenna, the second antenna, the third antenna, and the fourth antenna are received in the receiving space. The first antenna is electronically connected to the first frame assembly of the metal member. The third antenna and the fourth antenna are both electronically connected to the second frame assembly of the metal member.

Abstract: The disclosure provides an antenna module used for a portable device. The antenna module includes a first antenna part, a second antenna part, a third antenna part, a feed part, and a ground part. The first antenna part and the second antenna part are separated to encircle an adjustment space operable to adjust assembly of the antenna module. The third antenna part is disposed by the side of the first antenna part and the second antenna part. The feed part and the ground part are parallel to each other. The first antenna part and the second antenna part jointly connect with the feed part. The second antenna part and the third antenna part jointly connect with the ground part.

Abstract: A portable electronic device includes a housing, a circuit board received in the housing, and a memory card retaining mechanism received in the housing. The memory card retaining mechanism includes a plurality of conductive parts. The plurality of conductive parts cooperatively form an antenna integrated with the memory card retaining mechanism and connected to the circuit board.