Abstract: A complex antenna adapted for used in a electronic device, comprises a rod antenna, a helical antenna, a dipole antenna comprising a radiating element and a grounding element, and a feeding line. The feeding line comprises an inner conductor electrically connecting to the radiating element at a first joint position and an outer conductor electrically connecting to the grounding element at a second joint position. The first joint position is tightly covered by a insulating tubular element for avoiding to be destroyed and oxidized.

Abstract: A multi-band antenna used in a portable electrical device can work in WWAN and GPS at the same time. The multi-band antenna includes a PCB having a through hole, a first antenna body comprising a first radiating element and a first grounding element formed on a first surface of the PCB, a second antenna body formed on a second surface of the PCB, and a feeding line having an inner conductor electrically connecting to the first radiating element and an outer conductor electrically connecting to the first grounding element. The second antenna body comprises a second radiating element, a second grounding element, and a connecting element connecting the second radiating element and the second grounding element. The first radiating element and the second radiating element electrically connect with each other via the through hole of the PCB.

Abstract: A multi-band antenna includes a radiating element comprising a first metal patch, a second metal patch extending along a direction different from the first metal patch, a grounding element parallel to the radiating element with a certain distance, a resonant cavity produced by said certain distance between separated the radiating element and the grounding element, a first pad downward extending from an edge of the first metal patch to form a feeding pad, and a second pad downward extending from an edge of the second metal patch to form a grounding pad; wherein the edge from which the first pad extending is bordering the edge of the second metal patch with the second pad.

Abstract: A printed dipole antenna used in an electronic device comprising a PCB comprising some through holes; a grounding element locating on one side of the PCB; a radiating element locating on common side of the PCB with the grounding element; a coaxial cable comprising a inner conductor connecting to the radiating element and a braiding layer connecting to the grounding element; and a short circuit element locating on another side of the PCB electrically connecting the radiating element and the grounding element by said through holes. When the printed dipole antenna encounter an intense electromagnetic field, the interferential signal transmitting from the intense electromagnetic field would arrive to the grounding element through the radiating element. The interferential signal cannot arrive to the system and is unable disturb the working of the printed dipole antenna.

Abstract: A multi-band antenna adapted for used in a portable electronic device, includes: a first antenna including a first radiating element, a common grounding element, and a first connecting element connecting the first radiating element and the common grounding element; a second antenna, including a first radiating portion, the common grounding element, and a second connecting element connecting the radiating portion and the grounding element. Free end portions of the first radiating element and the first radiating portion do not align with each other in any direction.

Abstract: A multi-band antenna used in an electronic device, comprising: a grounding element; a radiating element comprises a first radiating section operating at 900 MHz frequency band and a second radiating section operating at 1800 MHz frequency band; and a connecting section connecting the radiating element and the grounding element. The grounding element, the radiating element, and the connecting element locate respectively in the different plane. The whole structure of the multi-band antenna of the present invention designed combining the inner structure of the notebook or other portable electrical device. The multi-band antenna is suit to be installed in a notebook or other portable electrical device because the multi-band antenna occupies small space.

Abstract: A multi-band antenna (1) used in wireless communications includes a radiating portion (2), a grounding portion (4), and a connecting portion (3). The radiating portion (2) includes a first radiating element (21) operating at 900 MHz frequency band and a second radiating element (22) operating at 1800 MHz frequency band. The connecting portion (3) connects the radiating portion (2) and the grounding portion (4). The grounding portion (4), the radiating portion (2), and the connecting portion (3) locate in the same plane.

Abstract: A monopole antenna comprises a planar substrate, a radiating element arranged on the planar substrate and of long-guide trapezium-shape and comprises a trapezium notch in the middle thereof, a grounding element assembled with said planar base with a predetermined angle.

Abstract: A complex antenna adapted for used in a electronic device, comprises a rod antenna, a helical antenna, a dipole antenna comprising a radiating element and a grounding element, and a feeding line. The feeding line comprises an inner conductor electrically connecting to the radiating element at a first joint position and an outer conductor electrically connecting to the grounding element at a second joint position. The first joint position is tightly covered by a insulating tubular element for avoiding to be destroyed and oxidized.

Abstract: An array antenna includes a dielectric substrate (10) having an upper and a lower surfaces (101, 102), a first and a second radiating elements (11, 21), a first connecting portion (31) connecting the two radiating elements arranged on the upper surface of the dielectric substrate, a first and a second grounding elements (12, 22), and a second connecting portion (32) connecting the two grounding elements arranged on the lower surface of the dielectric substrate. A feeding point (4) is disposed on the first connecting portion and a grounding point (6) is disposed on the second connecting point. A coaxial cable (7) has an inner conductor (71) coupled to the feeding point and an outer conductor (72) coupled to the grounding point.

Abstract: An impedance matching means according to the present invention is used with an antenna and is realized by a parasitic element (3) for tuning an impedance of the antenna. The antenna comprises a grounding plate (2), an radiating body (1) arranged on the grounding plate (2) and a transmission line (4) coupled to said radiating body (1) and grounding plate (2). The parasitic element (3) formed of a narrow metal sheet and configured as a bridge shape is arranged on the grounding plate (2). The parasitic element (3) has a first and a second ends (311, 321), both of which are electrically connected to the grounding plate (2). The arrangement of the parasitic element (3) results in a change of the impedance of the antenna, so the impedance matching between the antenna and the transmission line (4) can be achieved.

Abstract: A multi-band antenna includes a radiating element comprising a first metal patch, a second metal patch extending along a direction different from the first metal patch, a grounding element parallel to the radiating element with a certain distance, a resonant cavity produced by said certain distance between separated the radiating element and the grounding element, a first pad downward extending from an edge of the first metal patch to form a feeding pad, and a second pad downward extending from an edge of the second metal patch to form a grounding pad; wherein the edge from which the first pad extending is bordering the edge of the second metal patch with the second pad.

Abstract: A multi-band antenna used in a portable electrical device can work in WWAN and GPS at the same time. The multi-band antenna includes a PCB having a through hole, a first antenna body comprising a first radiating element and a first grounding element formed on a first surface of the PCB, a second antenna body formed on a second surface of the PCB, and a feeding line having an inner conductor electrically connecting to the first radiating element and an outer conductor electrically connecting to the first grounding element. The second antenna body comprises a second radiating element, a second grounding element, and a connecting element connecting the second radiating element and the second grounding element. The first radiating element and the second radiating element electrically connect with each other via the through hole of the PCB.

Abstract: A dual-band antenna (1) includes a first antenna (2) and a second antenna (3). The first antenna includes a u-shaped first dipole half (11) and an n-shaped second dipole half (12). The first dipole half is disposed above the second dipole half with a space therebetween and the two dipole halves are mirror imaged. The second antenna includes a u-shaped third dipole half (21) and an n-shaped fourth dipole half (22). The first and the third dipole halves are crossly connected with each other at bottom. The second and the fourth dipole halves are crossly connected with each other at top.

Abstract: A monopole antenna comprises a planar substrate, a radiating element arranged on the planar substrate and of long-guide trapezium-shape and comprises a trapezium notch in the middle thereof, a grounding element assembled with said planar base with a predetermined angle.

Abstract: A multi-band antenna adapted for used in a portable electronic device, includes: a first antenna including a first radiating element, a common grounding element, and a first connecting element connecting the first radiating element and the common grounding element; a second antenna, including a first radiating portion, the common grounding element, and a second connecting element connecting the radiating portion and the grounding element. Free end portions of the first radiating element and the first radiating portion do not align with each other in any direction.

Abstract: A dual-band antenna for communication device includes a first dipole antenna, a second dipole antenna and a coaxial feed line. The first dipole antenna includes a first radiating element disposed at a first plane and a first ground portion disposed at a second plane. The second dipole antenna includes a second radiating element disposed at a first plane and a second ground portion disposed at a second plane. The feed line includes an inner conductor electrically connecting to the first and second radiating elements and an outer conductor electrically connecting to the first and second ground portions. The first and second radiating elements both further include a compensating portion for improving radiating patterns of the first and second dipole antennas and a broadband portion for increasing frequency bands of the first and second dipole antennas.

Abstract: A multi-band antenna used in an electronic device, comprising: a grounding element; a radiating element comprises a first radiating section operating at 900 MHz frequency band and a second radiating section operating at 1800 MHz frequency band; and a connecting section connecting the radiating element and the grounding element. The grounding element, the radiating element, and the connecting element locate respectively in the different plane. The whole structure of the multi-band antenna of the present invention designed combining the inner structure of the notebook or other portable electrical device. The multi-band antenna is suit to be installed in a notebook or other portable electrical device because the multi-band antenna occupies small space.

Abstract: A multi-band antenna (1) used in wireless communications includes a radiating portion (2), a grounding portion (4), and a connecting portion (3). The radiating portion (2) includes a first radiating element (21) operating at 900 MHz frequency band and a second radiating element (22) operating at 1800 MHz frequency band. The connecting portion (3) connects the radiating portion (2) and the grounding portion (4). The grounding portion (4), the radiating portion (2), and the connecting portion (3) locate in the same plane.

Abstract: A dual-band antenna (1) includes a first antenna (2) and a second antenna (3). The first antenna includes a first dipole half (11) and a second dipole half (12). The first dipole half is disposed above the second dipole half with a space therebetween and the two dipole halves are corresponding to each other in a lengthwise direction. The second antenna includes a coaxial cable (4) including an inner conductor feeding the first antenna and comprising an exposed extending section (40) acting as a radiating portion of the second antenna, and a ground patch (5) electrically connected with the second dipole half.