An antenna package according to an embodiment includes antenna units, and a circuit board electrically connected to the antenna units. The circuit board includes a core layer, antenna feeding lines distributed on a surface of the core layer and connected to the antenna units, power/data lines distributed on the surface of the core layer, power/data ports connected to end portions of the power/data lines, and antenna feeding ports connected to end portions of the antenna feeding lines and arranged to be closer to the antenna units than the power/data ports.

This application provides a wireless data terminal and a wireless data terminal control system. The wireless data terminal includes a housing, a drive assembly, a first antenna assembly, and a second antenna assembly. The drive assembly can drive the first antenna assembly and the second antenna assembly to extend or retract to move in different directions between a first location and a second location. When the wireless data terminal does not need to be used or high isolation between antennas is not required, the drive assembly may drive the antenna assembly to retract to the first location, so that a volume occupied by the wireless data terminal can be reduced while an antenna isolation requirement is met. When high isolation between the antennas is required, the drive assembly may drive the antenna assembly to extend to the second location, so that isolation between the antennas is increased.

Various arrangements of transmit and receive shared-aperture array antenna systems are presented herein. The arrangements can include an antenna that includes: a planar substrate; a first row of a first plurality of transmit patches arranged on the planar substrate; a second row of a plurality of receive patches arranged on the planar substrate; and a third row of a second plurality of transmit patches arranged on the planar substrate. The first row, second row, and third row can be parallel and the second row can be between the first row and the third row.

A multi-input multi-output antenna system capable of being disposed in an electronic device and the electronic device including the antenna system have a low-frequency antenna assembly and a high-frequency antenna assembly. The low-frequency antenna assembly includes multiple low-frequency antennas that are spaced apart from each other by a distance. The high-frequency antenna assembly includes multiple high-frequency antennas that are spaced apart from each other by a distance. One of the high-frequency antennas is structured as a low-profile dish antenna and is located between the low-frequency antennas, so that the antenna system has smaller volume and height, and better isolation and radiation patterns.

An antenna is described. The antenna includes a first plurality of first elements. Each of the first elements is dual polarized and configured to support a first set of bands and a second set of bands that is mutually exclusive from the first set of bands. The antenna also includes a second plurality of second elements. Each of the second elements is dual polarized and configured to support the second set of bands. The second plurality of second elements is interleaved with the first plurality of first elements.

Disclosed is a radiator assembly configured to operate in the range of 3.4-4.2 GHz. The radiator assembly comprises a folded dipole with four dipole arms that radiate in two orthogonal polarization planes, whereby the signal of each polarization orientation is radiated by two opposite radiator arms that radiate the signal 180 degrees out of phase from each other. The radiator assembly has a balun structure that includes a balun trace that conductively couples to a ground element on the same side of the balun stem plate. The combination of the shape of the folded dipole and the balun structure reduces cross polarization between the two polarization states and maintains strong phase control between the opposing radiator arms.

A single stage unequal power combiner is proposed. Instead of conventional combiner plus impedance transformer of 2-stage unequal combiner, the single stage combiner gets rid of the input impedance transformer. The single stage combiner supports adjustable transmission line impedance and reasonable mismatch loss, assuming the that power ratio of the input signals is within a certain range. The single stage combiner also has an adjustable isolation resistor for different power ratios. A structure of switchable branch characteristic impedance, switchable isolation resistor for the unequal combiner is proposed as the preferred embodiment. In one advantageous aspect, broader coverage angle in a single array module can be realized via an antenna diversity switch.

A direction-finding antenna includes at least a first set of radiating elements configured to radiate at least a first wavelength (λ.sub.1) and a second set of radiating elements configured to radiate at a second wavelength (λ.sub.2) that is shorter than the first wavelength (λ.sub.1). The first set of radiating elements defines a first circle having a first radius. The second set of radiating elements defines a second circle having a second radius that is smaller than the first radius of the first circle. The direction-finding antenna further includes a transmission line-based multiplexer configured to selectively couple the first set of radiating elements or the second set of radiating elements to a radio frequency (RF) feed line, or a plurality of switches configured to selectively couple selected radiating elements of the first set of radiating elements or the second set of radiating elements to the RF feed line.

A base station antenna includes first and second reflectors that are movable relative to each other, and each of the first and second reflectors includes a plurality of radiating elements on a main reflector surface thereof. A third reflector is movably coupled to the first and second reflectors, and movement of the third reflector causes the first and second reflectors to move relative to each other. A drive mechanism is utilized to move the third reflector and includes a drive shaft, an actuator configured to rotate the drive shaft, and a threaded shaft coupled to the drive shaft and configured to rotate in response to rotation of the drive shaft. Rotational movement of the threaded shaft causes linear movement of the third reflector. A control unit, such as a remote electrical tilt (RET) controller controls the actuator to rotate the driveshaft.

A base station antenna includes first and second reflectors that are movable relative to each other, and each of the first and second reflectors includes a plurality of radiating elements on a main reflector surface thereof. A third reflector is movably coupled to the first and second reflectors, and movement of the third reflector causes the first and second reflectors to move relative to each other. A drive mechanism is utilized to move the third reflector and includes a drive shaft, an actuator configured to rotate the drive shaft, and a threaded shaft coupled to the drive shaft and configured to rotate in response to rotation of the drive shaft. Rotational movement of the threaded shaft causes linear movement of the third reflector. A control unit, such as a remote electrical tilt (RET) controller controls the actuator to rotate the driveshaft.