An apparatus is disclosed comprising first printed circuit board—PCB—and second PCB structure each having a first surface and a second surface and a layer of electrically conductive material on the first surface thereof and being attached to each other in a substantially parallel configuration. A stripline is positioned between the two PCBs. Each one of the first PCB and the second PCB has a plurality of via-holes that are electrically conductive and are connected at one end to the layer of electrically conductive material on the first surface and to an electrically conductive pad on the second surface of the PCB. At least a first electrically conductive pad associated with the first PCB is located in proximity with a first electrically conductive pad associated with the second PCB thereby forming a capacitive configuration.

The present invention relates to a base station antenna. The base station antenna comprises: a reflector that is configured to provide a ground plane; a first radiating element array including at least one first cross-polarized radiating element that is arranged on the reflector; and a first parasitic element array including first through third parasitic element pairs, wherein each of the first through third parasitic element pairs includes a pair of parasitic elements that are arranged substantially symmetrically on both sides of the first longitudinal axis, and distances from the first through third parasitic element pairs respectively to the first longitudinal axis increase sequentially, wherein projections of any two of the first parasitic element pair, the second parasitic element pair, the third parasitic element pair, and the at least one first cross-polarized radiating element on the first longitudinal axis at least partly overlap.

The invention relates to a manual actuating device for a phase shifter of a base station antenna. The device includes a support module having an elongated base body and a first and a second receiving portion which protrude from the base body and are spaced apart in a longitudinal direction of the base body; and a lead screw drive having a lead screw and a nut. The lead screw is rotatably supported in the first and the second receiving portion, and the nut is translationally movably installed on the lead screw. The device also includes an actuator rod connected to the nut and configured to actuate the phase shifter; and a manual operating part connected with the lead screw and configured to manually operate the lead screw to rotate the lead screw. The actuating device is simple and compact in structure and is easy to manufacture and install.

Disclosed is an universal radio interface system that allows different types of radios to be installed on a mobile or stationary platform. After a radio is installed, the radio can be efficiently removed and replaced with a different type of radio without having to change cabling, connectors, or mounting hardware. The universal radio interface can include an universal interface housing that can be mounted to the mobile or stationary platform. The universal radio interface also includes a radio tray that is installed in the universal interface housing. The radio tray is configured to accommodate specific types or sizes of radio modules. The universal radio interface system can also include a radio tray backing affixed to the radio tray and the radio module. The radio module, radio tray, and radio tray backing are assembled and secured within an interior cavity of the universal interface housing.

An antenna architecture can include a common node and a plurality of signal paths each having first and second ends, with the first end coupled to the common node, such that a common signal provided at the common node splits into respective signals in the signal paths. The antenna architecture can further include a phase shifter block implemented along each of at least some of the signal paths, with the phase shifter block including a phase shifting line to provide a phase shift for the signal passing through the respective signal path, such that the signals emerging from the signal paths are provided with incremental phase shifts. The antenna architecture can further include an antenna unit coupled to the second end of each signal path, such that the signals provided to the antenna units result in a transmitted signal being directed at a tilt angle with respect to the antenna units.

A system and method for uplink multi-antenna power control in a communications system are provided. A method for user equipment operations includes determining a transmit power level for transmit antennas of the user equipment having at least two transmit antennas, and setting a power amplifier output level for each of the at least two transmit antennas in accordance with a respective transmit power level.

Systems, methods, and apparatus for beam steering and switching are disclosed. In one or more examples, a method for operating a communication system comprises switching, at least one switch in a rearrangeable switch network, to control input levels to power amplifiers in a power distribution network. The method further comprises outputting, by the power amplifiers in the power distribution network, power to a plurality of antenna elements. Further, the method comprises steering and distributing power, by the antenna elements, in beams associated with each of the antenna elements according to a level of the power in each of the antenna elements.

A base station antenna includes a radome and an antenna assembly that is mounted within the radome. The antenna assembly includes a backplane that includes a first reflector, a first array that includes a plurality of first radiating elements mounted to extend forwardly from the first reflector, a second reflector mounted to extend forwardly from the first reflector and a second array that includes a plurality of second radiating elements mounted to extend forwardly from the second reflector. The first radiating elements extend a first distance forwardly from the first reflector and the second radiating elements extend a second distance forwardly from the second reflector, where the first distance exceeds the second distance.

A wireless communication system including an electrically conductive passive medium capable of simultaneously propagating therealong electromagnetic first and second currents at different respective frequencies F1 and F2, the electrically conductive passive medium including an electrically conductive first passive linear medium portion adjacent an electrically conductive first passive nonlinear medium portion, the first passive nonlinear medium portion capable of generating an intermodulation current based on a nonlinear interaction between the first and second currents, the intermodulation current having a frequency Fi equal to nF1+mF2 and propagating along the first passive nonlinear medium portion, m and n being positive or negative integers; and a first magnetic film disposed proximate an electrically conductive external surface of the first linear medium portion, such that when the first and second currents propagate along the first passive linear medium portion toward the first passive nonlinear medium portion, the magnetic film reduces or prevents the generation of the intermodulation current in the first passive nonlinear medium portion by attenuating at least portions of the first and second currents.

An antenna system has a two-dimensional field of view, yet can be implemented on a surface, such as on electronic or photonic integrated circuits. The antenna system includes an array of antennas disposed in a predetermined non-linear pattern and a two-dimensional beamforming network (BFN). The antenna system can be steered/selectively beamformed in two dimensions through beam port selection. The beamforming network is disposed entirely on a single first surface. The beamforming network has a one-dimensional array-side interface disposed on the first surface and a one-dimensional beam-side interface disposed on the first surface. The antennas of the array of antennas are individually communicably coupled to the array-side interface. Segments of the beam-side interface map to respective pixels in the two-dimensional field of view.