An antenna is provided and includes a base antenna component, a loop antenna component, a first coupling by which the loop antenna component is pivotally attached to and selectively electrically communicative with the base antenna component, a whip antenna component, a second coupling by which the whip antenna component is pivotally attached to and selectively electrically communicative with the loop antenna component; and a transmission/reception (T/R) module. The T/R module is disposable in signal communication with at least one or more of the base, loop and whip antenna components.

An antenna is provided and includes a base antenna component, a loop antenna component, a first coupling by which the loop antenna component is pivotally attached to and selectively electrically communicative with the base antenna component, a whip antenna component, a second coupling by which the whip antenna component is pivotally attached to and selectively electrically communicative with the loop antenna component; and a transmission/reception (T/R) module. The T/R module is disposable in signal communication with at least one or more of the base, loop and whip antenna components.

An adaptable antenna apparatus for a base station is provided. The adaptable antenna apparatus includes a first antenna having a first antenna array, a second antenna rotatably coupled to the first antenna and having a second antenna array, and a main controller provided in one of the first antenna and the second antenna, wherein the main controller is configured to apply a control signal to the first antenna and the second antenna.

A wide beam antenna structure includes a first substrate; a second substrate disposed on a lower surface of the first substrate; a microstrip antenna layer disposed on an upper surface of the first substrate and including a plurality of microstrip antennas connected in a strip shape arrangement; a plurality of parasitic elements disposed symmetrically on two sides of the micro strip antennas with an interval therebetween, wherein the length of the parasitic element is smaller than the length of the microstrip antenna; a grounding layer disposed between the first substrate and the second substrate; and a feed line layer disposed on a lower surface of the second substrate. By use of the parasitic element to improve the half power beamwidth, the vision scope of the vehicle radar system or short distance communication operation is increased.

A 3D antenna including three coil windings arranged substantially orthogonal to one another and made from electrically conductive wire and ferromagnetic antenna core with coil regions for receiving the coil windings. Winding-on points for starting to wind the wire onto the antenna core are formed as a single part with the antenna core.

Methods for transmitting over a wireless channel from a plurality of transmit chains are provided, as well as apparatuses for performing the methods. Each transmit chain has a variable gain power amplifier coupled to an antenna element. A subset of at least two transmit chains is selected from the plurality of transmit chains. A gain of at least one of the variable gain power amplifiers is set in accordance with the modulation scheme. Respective beams are transmitted with each transmit chain in the subset. Each respective beam represents a component of a modulated signal according to a modulation scheme, so that the beams combine over the wireless channel to form the modulated signal.

Methods for transmitting over a wireless channel from a plurality of transmit chains are provided, as well as apparatuses for performing the methods. Each transmit chain has a variable gain power amplifier coupled to an antenna element. A subset of at least two transmit chains is selected from the plurality of transmit chains. A gain of at least one of the variable gain power amplifiers is set in accordance with the modulation scheme. Respective beams are transmitted with each transmit chain in the subset. Each respective beam represents a component of a modulated signal according to a modulation scheme, so that the beams combine over the wireless channel to form the modulated signal.

An antenna array and a wireless communications device are disclosed. The antenna array includes at least two directional antennas in different directions. Each directional antenna includes an antenna element, a reflector, a feed line coupled to the antenna element, and a switch for controlling the feed line. The antenna element is a microstrip dipole antenna element. The reflector is a parasitic microstrip antenna element. A length of the reflector is greater than a length the antenna element. Two ends of the reflector are bent toward the antenna element. A distance between midpoints of reflectors of any two directional antennas is less than a distance between midpoints of antenna elements thereof. Because the reflectors of the antenna array are located on an inner side of a pattern enclosed by the antenna elements of directional antennas, a size of the antenna array is small.

A transmit antenna system configured to steer an electromagnetic beam includes an antenna and an electronic steering module. The antenna includes a first electric antenna element oriented parallel to a first plane, a second electric antenna element oriented orthogonally to the first electric antenna element and parallel to the first plane, and a first magnetic antenna element oriented orthogonally to the first electric antenna element and the second electric antenna element. The electronic steering module is in electrical communication with each of the first electric antenna element, the second electric antenna element, and the first magnetic antenna element. The electronic steering module includes at least one amplifier configured to control the amplitude of a current to each of the first electric antenna element, the second electric antenna element, and the first magnetic antenna element.

A transmit antenna system configured to steer an electromagnetic beam includes an antenna and an electronic steering module. The antenna includes a first electric antenna element oriented parallel to a first plane, a second electric antenna element oriented orthogonally to the first electric antenna element and parallel to the first plane, and a first magnetic antenna element oriented orthogonally to the first electric antenna element and the second electric antenna element. The electronic steering module is in electrical communication with each of the first electric antenna element, the second electric antenna element, and the first magnetic antenna element. The electronic steering module includes at least one amplifier configured to control the amplitude of a current to each of the first electric antenna element, the second electric antenna element, and the first magnetic antenna element.