Systems and methods of modifying an existing antenna base station are provided. Such methods may comprise the steps of replacing legacy antenna support brackets (10) with a new mast clamp arrangement (200) coupled with a steering and locking unit (100).

An FM broadcasting antenna is described having a mast, a pair of forward-facing elements, and a pair of rear-facing elements. The antenna makes use of angles between the antenna elements and the mast, a multi-diameter feed line, a multi-diameter center pin, and mounting points of a strap extending between at least one of the forward-facing elements, at least one of the rear-facing elements and the center pin, for achieving desired broadband and performance characteristics.

An antenna mounting structure is disclosed. According to an embodiment of the present invention, provided is an antenna mounting structure comprising: a parapet mount part; a parapet contact part vertically connected to one end of the parapet mount part; a mount extension part vertically connected to the other end of the parapet mount part, disposed parallel to the parapet contact part, and is connected and fixed to an inner surface of a parapet wall by means of a first connecting means; and an antenna coupling part adjacently disposed to the parapet contact part and configured to be coupled with an antenna.

According to one embodiment, an antenna apparatus includes a first phase shifter to shift a phase of a left-hand circularly polarized signal representing a left-hand circularly polarized wave; a second phase shifter to shift a phase of a right-hand circularly polarized signal representing a right-hand circularly polarized wave; a control circuit determining a first phase shift amount of the first phase shifter and a second phase shift amount of the second phase shifter based on a difference between a phase shift amount of the first phase shifter and a phase shift amount of the second phase shifter; and a radiating element radiating the left-hand circularly polarized wave and the right-hand circularly polarized wave based on the left-hand circularly polarized signal of which the phase is shifted by the first phase shift amount and the right-hand circularly polarized signal of which the phase is shifted by the second phase shift amount.

A base station antenna includes a remote electronic tilt (RET) actuator, a phase shifter having a moveable element and a mechanical linkage extending between the RET actuator and the phase shifter. The mechanical linkage includes a RET rod. An adjustable RET rod support includes a base member and an adjustable member, the adjustable member has a RET rod holder and is movably mounted to the base member.

A sensor based monitoring system (SBMS) for a wireless communications network, a monitoring device for the SBMS, and a SBMS server are provided herein. In one example, the SBMS includes: (1) a monitoring device configured to collect antenna data of an antenna mounted on a communications structure of a wireless communications network and communicate the antenna data over a wireless network, and (2) a SBMS server configured to provide actionable intelligence based on the antenna data and system data of the wireless communications network from at least one other data source.

An antenna with a radiation emitter/receiver, a base and a mount system capable of rotating the radiation emitter/receiver in relation to the base around at least three axes, where a controller may ensure that the emitter/receiver is directed in a first direction in relation to the base while portions of the mount system rotate so as to prevent bearings of the mount system to deteriorate.

An object of the present invention is to provide a method for designing a gradient index lens enabling to easily and accurately drive an antenna. According to the present invention, a virtual domain a boundary of which includes a curved focal plane in a uniform-refractive-index type lens with a uniform refractive index, and a physical domain a boundary of which includes a planar focal plane in a gradient index lens with a non-uniform refractive index and that is a quasiconformal map of the virtual domain are set, the quasiconformal map of a virtual medium parameter that is a medium parameter including at least one of a dielectric constant and magnetic permeability characterizing the virtual domain is calculated as a physical medium parameter in the physical domain, and the gradient index lens based on the physical medium parameter is designed by spatially arranging a medium parameter adjustment element set in advance.

The present disclosure describes an antenna mount kit. The antenna mount kit includes pivotally coupled mounting brackets, at least one adjustment bracket, and at least one locking plate. One of the mounting brackets and the at least one adjustment bracket each include a plurality of phase adjustment holes configured to lock an antenna at a desired tilt angle that is adjustable at 1 degree steps for different length antennas. Antenna mount kit assemblies and methods of adjusting the downtilt of an antenna are also provided.

An adjustment apparatus provided in this application includes an obtaining unit, a storage unit, and a processing unit, where the processing unit is electrically connected to the obtaining unit and the storage unit; the obtaining unit is configured to obtain antenna position information; the processing unit is configured to obtain latitude and longitude of an antenna or an azimuth of the antenna based on the antenna position information; the storage unit is configured to store the latitude and longitude of the antenna or the azimuth of the antenna; and the processing unit is further configured to read and write the latitude and longitude of the antenna or the azimuth of the antenna in the storage unit according to an instruction of a remote control unit, and the processing unit is further configured to adjust an electrical downtilt of the antenna according to the instruction of the remote control unit.