Abstract: Techniques are provided for diminishing power loss in electrical conductors used to provide electrical power to a radio configured to use time domain duplexing (TDD). Because the TDD radio typically transmits data during a downlink subframe, the TDD radio generally consumes more power, and thus draws more current through the electrical conductors, then during an uplink subframe when the TDD radio is configured to receive. Thus, during the downlink subframe, a DC voltage, output by a DC-DC voltage converter to the electrical conductors, is increased to lessen current drawn by the radio through the electrical conductors. As a result, power loss in the electrical conductors is reduced.

Abstract: A base station antenna includes a plurality of pairs of RF ports, a tubular reflector, a plurality of columns of first frequency band radiating elements that are mounted to extend outwardly from the tubular reflector, the columns extending around a periphery of the tubular reflector and grouped into a plurality of column groups, where each column group includes at least three columns, and a plurality of feed networks, where each feed network connects one of the pairs of RF ports to a respective one of the column groups.

Abstract: An antenna includes: a radome with an internal cavity; upper and lower end caps attached adjacent opposite ends of the radome; a plurality of arrays of radiating elements mounted within the cavity of the radome; and at least one multiplexer with at least one connector mounted thereto, the at least one multiplexer being operatively connected with at least one of the plurality of arrays. The at least one multiplexer is mounted adjacent the lower end cap, and the at least one connector extends through the lower end cap.

Abstract: Base station antennas include an externally accessible active antenna module releasably coupled to a target mounting structure behind a rear of a base station antenna housing using active antenna module mounting brackets that attach to the active antenna module, project rearward of the active antenna module and are configured to directly attach to a target mounting structure such as a pole. The base station antenna housing has a passive antenna assembly that cooperates with the active antenna module.

Abstract: Techniques are provided for diminishing power loss in electrical conductors used to provide electrical power to a radio configured to use time domain duplexing (TDD). Because the TDD radio typically transmits data during a downlink subframe, the TDD radio generally consumes more power, and thus draws more current through the electrical conductors, then during an uplink subframe when the TDD radio is configured to receive. Thus, during the downlink subframe, a DC voltage, output by a DC-DC voltage converter to the electrical conductors, is increased to lessen current drawn by the radio through the electrical conductors. As a result, power loss in the electrical conductors is reduced.

Abstract: Base station antennas include a main module that has a first backplane that includes a first reflector. A vertically-extending array of first radiating elements is mounted to extend forwardly from the first reflector, and at least one first RF port is coupled to the vertically-extending array of first radiating elements. These antennas further include a sub-module that is attached to the first backplane. The sub-module includes a second backplane that has a second reflector that is separate from the first reflector. A vertically-extending array of second radiating elements is mounted to extend forwardly from the second reflector and is transversely spaced-apart from the vertically-extending array of first radiating elements. A plurality of second RF ports are coupled to the vertically-extending array of second radiating elements. The vertically-extending array of first radiating elements and the vertically-extending array of second radiating elements are configured to serve a common sector of a base station.

Abstract: A base station antenna includes a first antenna having first and second spaced-apart columns of first radiating elements therein, which are configured to operate within a first frequency band. An active antenna system (AAS) is provided, which is configured to operate within a second, typically higher, frequency band. The AAS includes a second antenna within a space between the first and second columns of first radiating elements. These first radiating elements may include tilted feed stalks which support higher integration by enabling the first radiating elements to overhang at least a portion of the second antenna.

Abstract: Base station antennas include a main module that has a first backplane that includes a first reflector. A vertically-extending array of first radiating elements is mounted to extend forwardly from the first reflector, and at least one first RF port is coupled to the vertically-extending array of first radiating elements. These antennas further include a sub-module that is attached to the first backplane. The sub-module includes a second backplane that has a second reflector that is separate from the first reflector. A vertically-extending array of second radiating elements is mounted to extend forwardly from the second reflector and is transversely spaced-apart from the vertically-extending array of first radiating elements. A plurality of second RF ports are coupled to the vertically-extending array of second radiating elements. The vertically-extending array of first radiating elements and the vertically-extending array of second radiating elements are configured to serve a common sector of a base station.

Abstract: A base station antenna includes a first antenna having first and second spaced-apart columns of first radiating elements therein, which are configured to operate within a first frequency band. An active antenna system (AAS) is provided, which is configured to operate within a second, typically higher, frequency band. The AAS includes a second antenna within a space between the first and second columns of first radiating elements. These first radiating elements may include tilted feed stalks which support higher integration by enabling the first radiating elements to overhang at least a portion of the second antenna.

Abstract: Base station antennas include a main module that has a first backplane that includes a first reflector. A vertically-extending array of first radiating elements is mounted to extend forwardly from the first reflector, and at least one first RF port is coupled to the vertically-extending array of first radiating elements. These antennas further include a sub-module that is attached to the first backplane. The sub-module includes a second backplane that has a second reflector that is separate from the first reflector. A vertically-extending array of second radiating elements is mounted to extend forwardly from the second reflector and is transversely spaced-apart from the vertically-extending array of first radiating elements. A plurality of second RF ports are coupled to the vertically-extending array of second radiating elements. The vertically-extending array of first radiating elements and the vertically-extending array of second radiating elements are configured to serve a common sector of a base station.

Abstract: Base station antenna units include a first and second base station antennas that have respective first and second housings. The first housing includes a top end cap and the second housing includes a bottom end cap. A jumper cable that includes a first connector port is mounted in one of the top end cap or the bottom end cap, and a second connector port that is configured to mate with the first connector port is mounted in the other one of the top end cap or the bottom end cap. A longitudinal axis of the first connector port extends in a vertical direction and a longitudinal axis of the second connector port extends in the vertical direction.

Abstract: A base station antenna includes a first antenna having first and second spaced-apart columns of first radiating elements therein, which are configured to operate within a first frequency band. An active antenna system (AAS) is provided, which is configured to operate within a second, typically higher, frequency band. The AAS includes a second antenna within a space between the first and second columns of first radiating elements. These first radiating elements may include tilted feed stalks which support higher integration by enabling the first radiating elements to overhang at least a portion of the second antenna.

Abstract: Base station antennas include a main module that has a first backplane that includes a first reflector. A vertically-extending array of first radiating elements is mounted to extend forwardly from the first reflector, and at least one first RF port is coupled to the vertically-extending array of first radiating elements. These antennas further include a sub-module that is attached to the first backplane. The sub-module includes a second backplane that has a second reflector that is separate from the first reflector. A vertically-extending array of second radiating elements is mounted to extend forwardly from the second reflector and is transversely spaced-apart from the vertically-extending array of first radiating elements. A plurality of second RF ports are coupled to the vertically-extending array of second radiating elements. The vertically-extending array of first radiating elements and the vertically-extending array of second radiating elements are configured to serve a common sector of a base station.

Abstract: Base station antennas include first through fourth radio frequency (“RF”) ports, a plurality of first combiners that are coupled to the first and second RF ports, a plurality of second combiners that are coupled to the third and fourth RF ports, and an array that includes a plurality of radiating elements that have first through fourth radiators, where first and second radiators of each radiating element are coupled to a respective one of the first combiners, and third and fourth radiators of each radiating element are coupled to respective ones of the second combiners.

Abstract: A base station antenna includes a plurality of pairs of RF ports, a tubular reflector, a plurality of columns of first frequency band radiating elements that are mounted to extend outwardly from the tubular reflector, the columns extending around a periphery of the tubular reflector and grouped into a plurality of column groups, where each column group includes at least three columns, and a plurality of feed networks, where each feed network connects one of the pairs of RF ports to a respective one of the column groups.

Abstract: Techniques for automating delivery of data of a radio to a spectrum access system are provided. The data is used by the spectrum access system to use the data to control transmission of the radio to regulate interference in shared spectrum at an incumbent or primary user, where the radio is that of a secondary user.

Abstract: Base station antennas include first through fourth radio frequency (“RF”) ports, a plurality of first combiners that are coupled to the first and second RF ports, a plurality of second combiners that are coupled to the third and fourth RF ports, and an array that includes a plurality of radiating elements that have first through fourth radiators, where first and second radiators of each radiating element are coupled to a respective one of the first combiners, and third and fourth radiators of each radiating element are coupled to respective ones of the second combiners.

Abstract: Techniques for optimizing antenna parameters of a radio configured to transmit on spectrum shared by incumbent user(s) are disclosed. The incumbent user has priority to use the shared spectrum over the radio. The antenna parameters are optimized to reduce interference to incumbent user(s) and/or other radios utilizing the shared spectrum whilst maintaining satisfactory coverage area.

Abstract: Base station antennas include first through fourth radio frequency (“RF”) ports, a plurality of first combiners that are coupled to the first and second RF ports, a plurality of second combiners that are coupled to the third and fourth RF ports, and an array that includes a plurality of radiating elements that have first through fourth radiators, where first and second radiators of each radiating element are coupled to a respective one of the first combiners, and third and fourth radiators of each radiating element are coupled to respective ones of the second combiners.

Abstract: The present invention provides filter assemblies, tuning elements and a method of tuning a filter. A filter assembly includes a housing having a top cover, a bottom cover and at least one sidewall, the top cover, the bottom cover and the at least one sidewall defining an internal cavity, the housing configured to receive first through third radio frequency (“RF”) transmission lines; a top metal sheet mounted within the internal cavity that has a plurality of openings that form a first hole pattern; and a bottom metal sheet mounted within the internal cavity that has a plurality of openings that form a second hole pattern. The top and bottom metal sheets are vertically spaced-apart from each other in a vertically stacked relationship within the internal cavity. The top metal sheet and the bottom metal sheet each include at least one resonator.