Antenna structures and methods of operating the same of a dual-band inverted-F antenna of an electronic device are described. One device includes a single RF feed line coupled to a dual-band inverted-F antenna. The dual-band inverted-F antenna includes a RF feed coupled to the single RF feed line; a ground element; a first arm; a second arm; and a third arm coupled to the ground element. The RF feed is located at a point that is closer to the third arm than a first opening between a distal end of the first arm and the ground element. The second arm is located on an opposite side of the first arm than the ground element, forming a second opening between the second arm and the ground element and a third opening between the second arm and the first arm.

A dual band end fed dipole provides at least two distinct operating frequencies, e.g. 2.45 GHz and 5.5 GHz. Properties of the antenna include low cost to manufacture, e.g. ease of automation; minimal manual labor to manufacture, e.g. reliability; dual band operation; broad bandwidth; good feed line isolation; omnidirectional beam pattern; minimal vertical beam squint; small diameter; and high efficiency. Embodiments of the invention provide a dual band end fed dipole with a low band trap on the feed side that requires minimal manual labor to manufacture because the antenna is formed from a single flat sheet of metal and soldering is replaced with crimping. Minimal dielectric loading is also achieved.

A dual band end fed dipole provides at least two distinct operating frequencies, e.g. 2.45 GHz and 5.5 GHz. Properties of the antenna include low cost to manufacture, e.g. ease of automation; minimal manual labor to manufacture, e.g. reliability; dual band operation; broad bandwidth; good feed line isolation; omnidirectional beam pattern; minimal vertical beam squint; small diameter; and high efficiency. Embodiments of the invention provide a dual band end fed dipole with a low band trap on the feed side that requires minimal manual labor to manufacture because the antenna is formed from a single flat sheet of metal and soldering is replaced with crimping. Minimal dielectric loading is also achieved.

An antenna assembly can be configured for RF communications. The antenna assembly can include a ground plane disposed on a substrate. The antenna assembly can include a patch antenna structure spaced apart from the ground plane. The antenna assembly can include one or more grounded posts coupled to and extending from the substrate. The one or more grounded posts can be arranged along at least a portion of a periphery of the patch antenna structure. The patch antenna structure can emit a radiation pattern based at least in part on a transmit signal. The radiation pattern can induce a resultant field in the one or more grounded posts to adjust a characteristic of the radiation pattern.

An antenna assembly can be configured for RF communications. The antenna assembly can include a ground plane disposed on a substrate. The antenna assembly can include a patch antenna structure spaced apart from the ground plane. The antenna assembly can include one or more grounded posts coupled to and extending from the substrate. The one or more grounded posts can be arranged along at least a portion of a periphery of the patch antenna structure. The patch antenna structure can emit a radiation pattern based at least in part on a transmit signal. The radiation pattern can induce a resultant field in the one or more grounded posts to adjust a characteristic of the radiation pattern.

A dual band antenna is configured for use with a power meter having a power meter housing. The dual band antenna includes a flexible polymeric substrate and an adhesive layer that is secured relative to the flexible polymeric substrate. A first conductive element is disposed relative to the flexible polymeric substrate and has a first electrical length. A second conductive element is disposed relative to the flexible polymeric substrate and has a second electrical length. The first electrical length and the second electrical length are substantially the same.

The present invention discloses a sector dual-resonant dipole antenna. Radiation elements of the antenna are two identical sector patches. Two identical rectangular notches can be symmetrically arranged or two identical tuning stubs can be symmetrically loaded on the sector patches at positions deviating from the central axis of the two sector patches. Exciting points are symmetrically arranged on sides of the sector patches close to a central axis. The present invention realizes a wide beamwidth radiation characteristic through a two-dimensional sectorial resonator, and then the notches are arranged or the tuning stubs are loaded at appropriate positions of two arms of the sectorial resonator, and thereby a dual-resonant characteristic can be realized within a working band.

An on-chip antenna comprising an electrically insulating substrate having first and second faces; a metal layer arranged on the second face; and, a dipole antenna structure arranged on the first face, the dipole antenna structure comprising a dipole antenna and a feed structure connected to the dipole antenna; the on-chip antenna being configured such that when the feed structure is fed with an electrical signal it operates simultaneously in (i) at least one dielectric resonator mode to function as a dielectric resonance antenna, and (ii) at least one dipole mode to function as a cavity backed dipole antenna.

The present invention relates to a board assembly used for a base station antenna and a base station antenna including such a board assembly. The board assembly includes a first circuit board (3) and a second circuit board (4), and the first circuit board and the second circuit board are spaced apart from each other. The first circuit board has a plurality of first electrical connectors, the second circuit board has a plurality of second electrical connectors, and the first electrical connectors and the second electrical connectors are electrically connected by a plurality of coaxial cable assemblies (5). Each coaxial cable assembly extends between the first circuit board and the second circuit board, and includes a coaxial cable, a first corresponding electrical connector matching the first electrical connector on a first end of the coaxial cable, and a second corresponding electrical connector matching the second electrical connector on a second end opposite to the first end on the coaxial cable. The board assembly can have stable electrical performance, especially radio frequency signal transmission performance.

The present invention relates to a board assembly used for a base station antenna and a base station antenna including such a board assembly. The board assembly includes a first circuit board (3) and a second circuit board (4), and the first circuit board and the second circuit board are spaced apart from each other. The first circuit board has a plurality of first electrical connectors, the second circuit board has a plurality of second electrical connectors, and the first electrical connectors and the second electrical connectors are electrically connected by a plurality of coaxial cable assemblies (5). Each coaxial cable assembly extends between the first circuit board and the second circuit board, and includes a coaxial cable, a first corresponding electrical connector matching the first electrical connector on a first end of the coaxial cable, and a second corresponding electrical connector matching the second electrical connector on a second end opposite to the first end on the coaxial cable. The board assembly can have stable electrical performance, especially radio frequency signal transmission performance.