An example radio frequency (RF) front-end module may include a printed circuit board (PCB) including a ground plane, an RF integrated circuit (RFIC) including RF components mounted on the PCB, and an antenna array on the PCB. The antenna array may operate at a first resonant frequency in a wireless communication network. Further, the RF front-end module may include a slot defined in the ground plane to provide a second resonant frequency in the wireless communication network. The second resonant frequency is lower than the first resonant frequency.

An example radio frequency (RF) front-end module may include a printed circuit board (PCB) including a ground plane, an RF integrated circuit (RFIC) including RF components mounted on the PCB, and an antenna array on the PCB. The antenna array may operate at a first resonant frequency in a wireless communication network. Further, the RF front-end module may include a slot defined in the ground plane to provide a second resonant frequency in the wireless communication network. The second resonant frequency is lower than the first resonant frequency.

A radar device comprises a radar circuit configured to transceive first radar signals that occupy a first frequency band and second radar signals that occupy a second frequency band. An antenna device of the radar device comprises a first set and a second set of antennas and is configured to selectively transduce the first radar signals via the first set and not via the second set and to selectively transduce the second radar signals via the second set and not via the first set. A processing device of the radar device detects from the first radar signals target reflections via first propagation channels and from the second radar signals target reflections via second propagation channels. The signal processing device jointly evaluates the target reflections via the first and second propagation channels to form a common virtual antenna array for determining an angular position of a target object.

The present disclosure provides a highly-integrated vehicle antenna configuration, which includes: a metal structure as a reference ground for a broadband antenna; a broadband antenna; a first electrical connection structure electrically connected to the metal structure and the broadband antenna; a first excitation signal source loaded between the metal structure and the broadband antenna, wherein by exciting some resonance modes of the metal structure and the broadband antenna, the broadband design is realized; and an antenna module located on the broadband antenna, wherein the broadband antenna is used as an antenna radiator and/or reference ground of the antenna module. Multiple broadband antennas are realized by using only the space occupied by one broadband antenna, and other antennas are built on the broadband antenna at the same time, which maintains a good isolation between all antennas while ensuring the performance of the broadband antenna.

A base station antenna assembly that may include a base station antenna having a frame and a radome that covers the frame; and a first radio mounted to a radio support plate on a rear side of the base station antenna. The radio support plate may be configured to attach to the base station antenna by at least one guide rail that cooperates with one or more guide structures of the radio support plate. A rear surface of the radome may include a plurality of access holes, and the base station antenna assembly may include a plurality of connectorized cables soldered to components within an interior of the base station antenna that extend from the interior of the base station antenna through respective ones of the access holes.

A multifunction wireless device having at least one of multimedia functionality and smartphone functionality, the multifunction wireless device including an upper body and a lower body, the upper body and the lower body being adapted to move relative to each other in at least one of a clamshell, a slide, and a twist manner. The multifunction wireless device further includes an antenna system disposed within at least one of the upper body and the lower body and having a shape with a level of complexity of an antenna contour defined by complexity factors F.sub.21 having a value of at least 1.05 and not greater than 1.80 and F32 having a value of at least 1.10 and not greater than 1.90.

A multifunction wireless device having at least one of multimedia functionality and smartphone functionality, the multifunction wireless device including an upper body and a lower body, the upper body and the lower body being adapted to move relative to each other in at least one of a clamshell, a slide, and a twist manner. The multifunction wireless device further includes an antenna system disposed within at least one of the upper body and the lower body and having a shape with a level of complexity of an antenna contour defined by complexity factors F.sub.21 having a value of at least 1.05 and not greater than 1.80 and F32 having a value of at least 1.10 and not greater than 1.90.

An antenna structure includes a metal frame, at least one feed source, and a feed portion. The metal frame includes at least one radiating portion and at least one slot. The at least one slot is disposed in the at least one radiating portion or adjacent to the at least one radiating portion. The at least one feed source and the at least one radiating portion form a first antenna. The feed portion and the at least one slot form a second antenna. The at least one feed source supplies an electric current for the first antenna, thereby exciting a first working mode and generating a radiation signal in a first frequency band. The feed portion spans the at least one slot to supply the electric current for the second antenna, thereby exciting a second working mode and generating a radiation signal in a second frequency band.

Exemplary embodiments are disclosed of antenna assemblies configured for reception of television signals, such as high definition television (HDTV) signals. In an exemplary embodiment, an antenna assembly generally includes a VHF antenna element and a UHF antenna element. The VHF antenna element and the UHF antenna element may be parasitically coupled without a direct ohmic connection between the VHF antenna element and the UHF antenna element. The antenna assembly may be configured to be operable for receiving VHF and UHF high definition television signals without using a diplexer and a VHF balun.

A wireless system includes a first antenna configured to form at least part of the shape of a first ring, a second antenna configured to form at least part of the shape of a second ring, where the second antenna is capable of being coupled to the first antenna by an electromagnetic field, a first rotation control unit configured to rotate at least one of the first antenna and the second antenna about a first axis that passes through the substantial center of the first ring, and a second rotation control unit configured to rotate at least one of the first antenna and the second antenna about a second axis that passes through the substantial center of the second ring and that is substantially orthogonal to the first axis.