Abstract: An antenna includes a dielectric substrate, a grounding plane, first and second grounding elements, and first and second radiating elements. The grounding plane is formed on the dielectric substrate. The first and second grounding elements are formed on the dielectric substrate, have a curved shape and a size that are identical, and are connected to the grounding plane. The first and second radiating elements are formed on the dielectric substrate, have a curved shape and a size that are identical, are operable in the same frequency range, and are connected to the first and second grounding elements, respectively.

Abstract: An antenna includes a base element, grounding and feeding points, and first and second radiating elements. Each of the grounding and feeding points is provided on the base element. The first radiating element is operable in a first frequency band, and extends from the base element. The second radiating element is operable in a second frequency band lower than the first frequency band, extends from the base element, and is formed with a slot.

Abstract: An antenna, which is operable in a digital video broadcasting for handhelds (DVB-H) frequency range, includes first and second monopole radiating elements and a feeding element. The first and second monopole radiating elements are symmetrical about an axis of symmetry and have a meandering shape. The feeding element interconnects the first and second monopole radiating elements.

Abstract: An antenna device includes a dielectric substrate, first and second antennas, and a parasitic coupler. The first antenna is formed on the dielectric substrate, and includes first and second radiating elements that extend in opposite directions. The parasitic coupler is formed on the dielectric substrate and is electromagnetically coupled to the first radiating element. The second antenna is formed on the dielectric substrate and is disposed proximate to the second radiating element.

Abstract: An antenna includes a dielectric substrate, a grounding plane, first and second grounding elements, and first and second radiating elements. The grounding plane is formed on the dielectric substrate. The first and second grounding elements are formed on the dielectric substrate, have a curved shape and a size that are identical, and are connected to the grounding plane. The first and second radiating elements are formed on the dielectric substrate, have a curved shape and a size that are identical, are operable in the same frequency range, and are connected to the first and second grounding elements, respectively.

Abstract: An antenna unit includes left and right antennas that are spaced apart from each other and that are operable within a first frequency bandwidth, and a parasitic coupler that is spaced apart from and disposed between the left and right antennas, and that is electromagnetically coupled to the left and right antennas so as to be operable within a second frequency bandwidth.

Abstract: An antenna includes an open loop conductor, a pair of feeding points, and a conductive arm. The open loop conductor includes a loop element that has opposite first and second ends, and first and second feeding elements, each of which is connected to a respective one of first and second ends of the loop element. Each of the feeding points is provided on a respective one of the first and second feeding elements. The conductive arm extends from the open loop conductor.

Abstract: An antenna includes a dielectric substrate, feeding and grounding elements, a base element, a radiating element, and an interconnecting element. The feeding and grounding elements are formed on the dielectric substrate. The base element is mounted on the dielectric substrate such that the base element is in electrical contact with the feeding and grounding elements. The radiating element is spaced apart from the dielectric substrate. The interconnecting element interconnects the base element and the radiating element.

Abstract: An antenna includes a base element, grounding and feeding points, and first and second radiating elements. Each of the grounding and feeding points is provided on the base element. The first radiating element is operable in a first frequency band, and extends from the base element. The second radiating element is operable in a second frequency band lower than the first frequency band, extends from the base element, and is formed with a slot.

Abstract: An antenna includes a dielectric substrate, a radiating element, feeding and grounding elements, and a screw. The radiating element is formed on the dielectric substrate. Each of the feeding and grounding elements is formed on the dielectric substrate and is connected electrically to the radiating element. The screw extends through the dielectric substrate and is connected electrically to the radiating element.

Abstract: An antenna, which is operable in a digital video broadcasting for handhelds (DVB-H) frequency range, includes first and second monopole radiating elements and a feeding element. The first and second monopole radiating elements are symmetrical about an axis of symmetry and have a meandering shape. The feeding element interconnects the first and second monopole radiating elements.

Abstract: An antenna device includes a dielectric substrate, first and second antennas, and a parasitic coupler. The first antenna is formed on the dielectric substrate, and includes first and second radiating elements that extend in opposite directions. The parasitic coupler is formed on the dielectric substrate and is electromagnetically coupled to the first radiating element. The second antenna is formed on the dielectric substrate and is disposed proximate to the second radiating element.

Abstract: An antenna device includes an antenna, a parasitic coupler, and a conductive strip. The antenna is operable within a first frequency bandwidth. The parasitic coupler is spaced apart from said antenna, and is electromagnetically coupled to the antenna so as to be operable within a second frequency bandwidth. The conductive strip is connected to the grounding elements of the antenna and the parasitic coupler.

Abstract: An antenna unit includes left and right antennas that are spaced apart from each other and that are operable within a first frequency bandwidth, and a parasitic coupler that is spaced apart from and disposed between the left and right antennas, and that is electromagnetically coupled to the left and right antennas so as to be operable within a second frequency bandwidth.

Abstract: An antenna includes a first radiating element, a feeding point, a grounding point, a second radiating element, and first and second conductive elements. The first radiating element has opposite first and second sides. The feeding point is provided on the first radiating element, and is disposed adjacent to the first side of the first radiating element. The grounding point is provided on the first radiating element, and is disposed adjacent to the second side of the first radiating element. The second radiating element is spaced apart from and overlaps the first radiating element. The first conductive element is disposed adjacent to the feeding point, and interconnects the first and second radiating elements. The second conductive element is disposed adjacent to the grounding point, and interconnects the first and second radiating elements.

Abstract: A planar antenna includes a high frequency radiating element, a meandering low frequency radiating element, and an interconnecting element. The low frequency radiating element has an operating bandwidth which is lower than that of the high frequency radiating element. The interconnecting element interconnects the high frequency radiating element and the low frequency radiating element. A feeding point is provided on the high frequency radiating element and is distal from the interconnecting element. A grounding point is provided on either the interconnecting element, or the high frequency radiating element proximate to the interconnecting element.

Abstract: An electronic device includes a casing, an antenna, a signal attenuating member, and a signal reflecting member. The antenna is disposed in the casing for radiating an electromagnetic signal. The signal attenuating member is mounted on the casing. The signal reflecting member is disposed between the antenna and the signal attenuating member, is free of physical contact with the antenna, and reflects a portion of the electromagnetic signal, which is radiated by the antenna toward the signal attenuating member, away from the signal attenuating member.

Abstract: A planar antenna includes a high frequency radiating element, a meandering low frequency radiating element, and an interconnecting element. The low frequency radiating element has an operating bandwidth which is lower than that of the high frequency radiating element. The interconnecting element interconnects the high frequency radiating element and the low frequency radiating element. A feeding point is provided on the high frequency radiating element and is distal from the interconnecting element. A grounding point is provided on either the interconnecting element, or the high frequency radiating element proximate to the interconnecting element.

Abstract: An antenna includes a first radiating element, a feeding point, a grounding point, a second radiating element, and first and second conductive elements. The first radiating element has opposite first and second sides. The feeding point is provided on the first radiating element, and is disposed adjacent to the first side of the first radiating element. The grounding point is provided on the first radiating element, and is disposed adjacent to the second side of the first radiating element. The second radiating element is spaced apart from and overlaps the first radiating element. The first conductive element is disposed adjacent to the feeding point, and interconnects the first and second radiating elements. The second conductive element is disposed adjacent to the grounding point, and interconnects the first and second radiating elements.