An electronic device and an antenna module are provided. The electronic device includes a metal cover and the antenna module. The metal cover has a short slot and a long slot. The antenna module includes a substrate and an antenna structure. The antenna structure includes a first excitation segment, a second excitation segment, and a connection segment. Two projection regions respectively defined by orthogonally projecting the first excitation segment and the second excitation segment onto the metal cover overlap with the shot slot and the long slot, respectively. When a signal source is fed into the antenna structure, a first frequency band generated by the antenna structure and the short slot, a second frequency band generated by the antenna structure and the long slot, and a third frequency band generated by the antenna structure are different from each other in terms of corresponding frequency ranges.

An electronic device and an antenna module are provided. The electronic device includes a metal cover and the antenna module. The metal cover has a short slot and a long slot. The antenna module includes a substrate and an antenna structure. The antenna structure includes a first excitation segment, a second excitation segment, and a connection segment. Two projection regions respectively defined by orthogonally projecting the first excitation segment and the second excitation segment onto the metal cover overlap with the shot slot and the long slot, respectively. When a signal source is fed into the antenna structure, a first frequency band generated by the antenna structure and the short slot, a second frequency band generated by the antenna structure and the long slot, and a third frequency band generated by the antenna structure are different from each other in terms of corresponding frequency ranges.

An antenna for a foldable electronic device which functions equally well in both folded and unfolded states includes a rotating shaft and a housing. The overall housing is made of metallic material and includes a first housing and a second housing. The first housing connects to the second housing through the rotating shaft. The housing further defines at least one group of slots to form at least one slot antenna. The at least one slot antenna crosses the rotating shaft and extends to the first housing and/or the second housing. By setting at least one slot antenna to correspond to the rotating shaft, the foldable electronic device achieves high radiation performance whether the first and second housing are folded or unfolded.

An antenna for a foldable electronic device which functions equally well in both folded and unfolded states includes a rotating shaft and a housing. The overall housing is made of metallic material and includes a first housing and a second housing. The first housing connects to the second housing through the rotating shaft. The housing further defines at least one group of slots to form at least one slot antenna. The at least one slot antenna crosses the rotating shaft and extends to the first housing and/or the second housing. By setting at least one slot antenna to correspond to the rotating shaft, the foldable electronic device achieves high radiation performance whether the first and second housing are folded or unfolded.

An electronic device according to one embodiment may include a first antenna implemented as at least one of a plurality of metal rims and disposed on one side region and a lower region of the electronic device, a second antenna disposed on the lower region to be spaced apart from the first antenna, and a third antenna implemented as one of the plurality of metal rims and disposed on the one side region to be spaced apart from an end portion of the first antenna by a slit. The end portion of the first antenna and an end portion of the third antenna spaced apart from each other by the slit may be connected to each other by a delay line having a predetermined length.

An apparatus comprising: a first cover member configured to define an exterior surface of an electronic device, the first cover member including a first conductive portion (30) defining at least a first edge (32) and a second edge (34) of the electronic device, the first edge (32) being shorter than the second edge (34) and defining an aperture (36) therein; a first feed point (26) coupled to the first conductive portion along the first edge (32) at a first side of the aperture (36); and a second feed point (28) coupled to the first conductive portion along the first edge (32) at a second side of the aperture (36), opposite to the first side of the aperture.

An apparatus comprising: a first cover member configured to define an exterior surface of an electronic device, the first cover member including a first conductive portion (30) defining at least a first edge (32) and a second edge (34) of the electronic device, the first edge (32) being shorter than the second edge (34) and defining an aperture (36) therein; a first feed point (26) coupled to the first conductive portion along the first edge (32) at a first side of the aperture (36); and a second feed point (28) coupled to the first conductive portion along the first edge (32) at a second side of the aperture (36), opposite to the first side of the aperture.

Provided is a vehicle antenna applied to a vehicle including a sun roof. The vehicle antenna includes a first sun roof forming opening and a second sun roof forming opening exhibiting a rectangular shape and being formed, on a roof of the vehicle, in parallel to have long sides facing each other, the roof being formed of a conductive material, a first power feeding point provided to a long side of the first sun roof forming opening on a facing side, a second power feeding point provided to a long side of the second sun roof forming opening on a facing side, a hot-side conducting wire connected to the first power feeding point, and an earth-side conducting wire connected to the second power feeding point.

Disclosed herein is an energy concentration apparatus having a central hole and a micro-slit. The energy concentration apparatus including: a body part; a loop antenna coil part disposed on the body part; and a cover part coupled to the body part in order to cover the loop antenna coil part. The cover part has a central hole and a micro-slit.

A holographic antenna includes a transmission line and a plurality of interdigital capacitor (IDC) slots respectively formed along the transmission line. The holographic antenna also includes an active tuning device connected to each IDC slot from the plurality of IDC slots. Each active tuning device is configured to provide a holographic pattern on the plurality of IDC slots in response to the holographic antenna transmitting or receiving an electromagnetic signal. The holographic pattern is controllable for scanning an electromagnetic beam by the holographic antenna. The holographic antenna also includes a biasing source coupled to each active tuning device and configured to control its respective operation.