Abstract: A base station antenna includes a radio frequency (RF) lens positioned to receive electromagnetic radiation from a radiating element, the RF lens including an RF energy focusing material and a first heat dissipation channel that extends through the RF energy focusing material of the RF lens and contains a cooling fluid.

Abstract: Base station antennas include an externally accessible active antenna module releasably coupled to a recessed segment that is over a chamber in the base station antenna and that is longitudinally and laterally extending along and across a rear of a base station antenna housing. The base station antenna housing has a passive antenna assembly that cooperates with the active antenna module.

Abstract: Base station antennas include an externally accessible active antenna module releasably coupled to a recessed segment that is over a chamber in the base station antenna and that is longitudinally and laterally extending along and across a rear of a base station antenna housing. The base station antenna housing has a passive antenna assembly that cooperates with the active antenna module.

Abstract: A micro-vaporizer has a vaporization chamber within an interior of a body casing. At least one heating element is disposed within the vaporization chamber and a fluid transport material is at least partially disposed within the vaporization chamber. The fluid transport material has a vaporization surface portion positioned adjacent a surface of the at least one heating element and is configured for drawing a vaporizable liquid to the vaporization surface for exposure to the at least one heating element. An active material substrate is also disposed within the vaporization chamber. The active material substrate has an active surface portion positioned adjacent a second surface of the at least one heating element.

Abstract: A micro-vaporizer has a vaporization chamber within an interior of a body casing. At least one heating element is disposed within the vaporization chamber and a fluid transport material is at least partially disposed within the vaporization chamber. The fluid transport material has a vaporization surface portion positioned adjacent a surface of the at least one heating element and is configured for drawing a vaporizable liquid to the vaporization surface for exposure to the at least one heating element. An active material substrate is also disposed within the vaporization chamber. The active material substrate has an active surface portion positioned adjacent a second surface of the at least one heating element.

Abstract: Active antennas are provided that include a housing having a front surface, first and second side surfaces and a rear surface, where the front surface comprises a radome and the first and second side surfaces comprise respective first and second thermally-conducting frame members. These antennas further include at least one radio that is completely mounted within an interior of the housing. Each of the first and second thermally-conducting frame members includes a plurality of outwardly extending fins.

Abstract: A composite wick is provided for use in a micro-vaporizer having a fluid reservoir and a heating element. The composite wick comprises a wick body positionable so that its upstream surface is in fluid communication with the fluid reservoir and the downstream surface is disposed in opposition to a surface of the heating element. The wick body comprises at least one base wick structure having a plurality of tortuous passages that collectively provide a capillary effect to draw fluid from the reservoir and transport it toward the downstream surface. The wick body further comprises an active material positioned within the wick body so that vaporizable fluid drawn through the wick body contacts and interacts with the active material. The active material is selected to impart a desired characteristic to the vaporizable fluid.

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.

Abstract: A composite wick is provided for use in a micro-vaporizer having a fluid reservoir and a heating element. The composite wick comprises a wick body positionable so that its upstream surface is in fluid communication with the fluid reservoir and the downstream surface is disposed in opposition to a surface of the heating element. The wick body comprises at least one base wick structure having a plurality of tortuous passages that collectively provide a capillary effect to draw fluid from the reservoir and transport it toward the downstream surface. The wick body further comprises an active material positioned within the wick body so that vaporizable fluid drawn through the wick body contacts and interacts with the active material. The active material is selected to impart a desired characteristic to the vaporizable fluid.

Abstract: A personal vaporizer has a vaporizer case defining a vaporizer interior, a vaporization chamber within the vaporizer interior, an air flow passage from one or more air intake openings in the case to the vaporization chamber, a vaporization mixture flow passage extending from the vaporization chamber to an exit port, and a heating arrangement having at least one heating element disposed within the vaporization chamber. The heating arrangement is connected to a power source for selective activation by a user. A first fluid reservoir is configured for retaining a first vaporizable fluid within a first reservoir interior and a second fluid reservoir is configured for retaining a second vaporizable fluid within a second reservoir interior. A fluid transport arrangement is configured for transporting the first and second vaporizable fluids from the first and second fluid reservoirs into the vaporization chamber.

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.

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.

Abstract: A micro-vaporizer has an annular main body, a vaporization chamber, and a liquid delivery arrangement. The liquid delivery arrangement is configured for sequential delivery of a plurality of vaporizable liquids to the vaporization chamber. The liquid delivery arrangement has an annular wick having an internal wick surface defining at least a portion of the vaporization chamber. The liquid delivery arrangement also comprises a liquid reservoir surrounding the wick. The liquid reservoir is configured for storage of at least one vaporizable liquid therein and is in fluid communication with the wick. A heating element is positioned within the vaporization chamber for heating and vaporizing vaporizable liquid at or near the internal wick surface.

Abstract: A micro-vaporizer has a vaporization chamber within an interior of a body casing. At least one heating element is disposed within the vaporization chamber and a fluid transport material is at least partially disposed within the vaporization chamber. The fluid transport material has a vaporization surface portion positioned adjacent a surface of the at least one heating element and is configured for drawing a vaporizable liquid to the vaporization surface for exposure to the at least one heating element. An active material substrate is also disposed within the vaporization chamber. The active material substrate has an active surface portion positioned adjacent a second surface of the at least one heating element.

Abstract: A composite wick is provided for use in a micro-vaporizer having a fluid reservoir and a heating element. The composite wick comprises a wick body positionable so that its upstream surface is in fluid communication with the fluid reservoir and the downstream surface is disposed in opposition to a surface of the heating element. The wick body comprises at least one base wick structure having a plurality of tortuous passages that collectively provide a capillary effect to draw fluid from the reservoir and transport it toward the downstream surface. The wick body further comprises an active material positioned within the wick body so that vaporizable fluid drawn through the wick body contacts and interacts with the active material. The active material is selected to impart a desired characteristic to the vaporizable fluid.

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.

Abstract: In one embodiment, an electronic system includes a printed circuit board, one or more packaged semiconductor devices, and a vapor chamber having a top and a bottom and enclosing a sealed cavity that is partially filled with a coolant. The vapor chamber comprises a thermo-conductive and electro-conductive material. The top of the vapor chamber has one or more depressions formed therein, each depression receiving and thermo-conductively connected to at least part of a bottom of a corresponding packaged semiconductor device, which is mounted through a corresponding aperture in the PCB. A heat sink may be thermo-conductively attached to the bottom of the vapor chamber.

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.

Abstract: In one embodiment, an apparatus includes three remote radio heads (RRHs) mounted on a pole using one or more triangular brackets, each RRH connected to a corresponding antenna. Each RRH includes an electronics module, a heat sink mounted on the electronics module, and a cover attached to the heat sink. The heat sink comprises a base, a plurality of attached forward-facing fins, and a pair of backward-facing fins. Each forward-facing fin and backward-facing fin comprises a proximal end attached to the base and an opposite distal end. The proximal ends of the plurality of forward-facing fins are collinear. The distal ends of the plurality of forward-facing fins and the backward-facing fins define an arc of an ellipse.

Abstract: In one embodiment, an electronic system includes a printed circuit board, one or more packaged semiconductor devices, and a vapor chamber having a top and a bottom and enclosing a sealed cavity that is partially filled with a coolant. The vapor chamber comprises a thermo-conductive and electro-conductive material. The top of the vapor chamber has one or more depressions formed therein, each depression receiving and thermo-conductively connected to at least part of a bottom of a corresponding packaged semiconductor device, which is mounted through a corresponding aperture in the PCB. A heat sink may be thermo-conductively attached to the bottom of the vapor chamber.