A method is provided for using an antenna array to create two beams (a first beam and a second beam). In one aspect, the method uses dual polarization beam forming, which allows for many degrees of freedom in designing a desired power pattern. The method is well suited for systems with multiple radio chains (e.g., systems with active antennas). The method is also well suited for multi-port systems such as TD-SCDMA. In some embodiments, the method produces two beams where (a) the shape of the power beam pattern for the first beam and the shape of the power beam pattern for the second beam are the same (or substantially the same) in a plurality of directions of interest and (b) the beams have orthogonal (or substantially orthogonal) polarizations in the coverage area.

Provided is an antenna apparatus including: a signal splitter configured to generate a second signal including N equal-phase signals by splitting a first signal received from a signal source; a signal source virtual beam adjustor configured to generate a third signal including N signals by shifting a phase of each signal included in the second signal; a transmission beam adjustor configured to generate a fourth signal including N signals by shifting a phase of each signal included in the third signal by 0 degree or 180 degrees; and a transmitter including N transmission antennas transmitting respectively transmitting the N signals included in the fourth signal.

The disclosed technology provides systems and methods of communication between implanted medical devices, e.g., implanted pulse generators, and handheld consumer devices, e.g., smartphones, via standard wireless communication protocols, e.g., Bluetooth or Bluetooth Low Energy (BLE) operating in the unlicensed 2.4 GHz frequency band.

The disclosed technology provides systems and methods of communication between implanted medical devices, e.g., implanted pulse generators, and handheld consumer devices, e.g., smartphones, via standard wireless communication protocols, e.g., Bluetooth or Bluetooth Low Energy (BLE) operating in the unlicensed 2.4 GHz frequency band.

Methods of configuring base station antennas are provided in which reconfiguration data is transmitted to a controller of the antenna from a remote location. Connections between a plurality of remote electronic tilt (RET) units that are mounted within the antenna and a plurality of control ports of the antenna are then reconfigured in response to receipt of the reconfiguration data.

Multi-RET actuators include a plurality of shafts that have respective axially-drivable members mounted thereon. Each of axially-drivable member is mechanically linked to a respective one of a plurality of phase shifters. The multi-RET actuator further includes a motor having a drive shaft and a gear system that is configured to selectively couple the motor to the respective shafts. The gear system is configured so that rotation of the drive shaft in a first direction creates a mechanical linkage between the motor and a first of the shafts 1340/1342, and rotation of the drive shaft in a second direction that is opposite the first direction rotates the first of the shafts.

A system for wireless power networking, preferably including one or more nodes, such as transmit nodes, receive nodes, relay nodes, and/or hybrid nodes. The system may function to form a power network (e.g., mesh network) configured to transfer power wirelessly between nodes of the system. A method for wireless power networking, preferably including transmitting power, controlling relay nodes, and/or receiving power, and optionally including optimizing power network operation. The method is preferably performed at (e.g., by one or more nodes of) the system, but can additionally or alternatively be performed by any other suitable system(s).

An array antenna with each antenna element in the array being physically tilted away from a base plane of the array. End antenna elements are tilted at a higher angle than regular antenna elements. The radiation pattern, the end antenna elements can provide coverage directly above the antenna array (i.e. at 90 degrees to the horizontal) for different electrical tilts.

A low sidelobe beam forming method and dual-beam antenna schematic are disclosed, which may preferably be used for 3-sector and 6-sector cellular communication system. Complete antenna combines 2-, 3- or -4 columns dual-beam sub-arrays (modules) with improved beam-forming network (BFN). The modules may be used as part of an array, or as an independent 2-beam antenna. By integrating different types of modules to form a complete array, the present invention provides an improved dual-beam antenna with improved azimuth sidelobe suppression in a wide frequency band of operation, with improved coverage of a desired cellular sector and with less interference being created with other cells. Advantageously, a better cell efficiency is realized with up to 95% of the radiated power being directed in a desired cellular sector.

The invention relates to a reconfigurable antenna system (1), which comprises a plurality of antenna units (10) and does not employ phase shifters. Each antenna unit (10) is by itself a reconfigurable antenna having at least an active radiating element which is coupled to one or more passive radiating elements. Each antenna unit is provided with one or more variable loads (12) that can be electrically connected/disconnected to each other and with said antenna unit (10), to selectively configure the radiating properties of the system. A bias network (70) is adopted to bias the variable loads (12) and a control unit (80) allows controlling the operation of said bias network (70). Each active radiating element is fed by at least a feeding line (501) that provides it with a suitable polarization. Hence, the system can advantageously resort to multiple polarizations, each of them being provided by a same source. Preferably, each active radiating element receive its feeding signal from the source/s by means of power dividers (60) and/or switches. Preferably, each antenna unit is covered by at least a radiating structure, comprising a plurality of passive radiating elements, which does not affect the reconfigurability of the antenna unit itself and increases the overall antenna gain. The antenna system is then characterized by remarkable beam-steering capabilities and high gain, avoiding the losses and complexities related to phase shifters and overcoming the typically small antenna gain values of current reconfigurable antenna systems.