Abstract: A multi-band antenna system can include a base, a ground reference portion coupled to the base, and a cover configured to be removably coupled to the base. The antenna system can include one or more of: four low/high multi-band antenna devices, four multi-band WiFi antenna devices, and a GPS radiating device, which can coupled to the ground reference portion and positioned between the base and the cover. The antenna system can be used for mobile and client-based application for wireless telecommunication. When the antenna system is used in conjunction with high order electromagnetic modes generated or received by a transceiver and/or receiver, the antenna system can have an operating frequency range of between about 500 MHz to about 8.0 GHz.

Abstract: An antenna assembly can include a front cover, a back cover, and one or more ground reference portions with one or more feed networks positioned between the front cover and the back cover. The antenna assembly can include a first antenna array and a second antenna array coupled to the one or more ground reference portions. The antenna arrays can be an ultra-wide band directional antenna array for mobile and client based application for the wireless telecommunication marketplace. The first antenna and second antenna arrays can two orthogonal polarizations, each covering 1800 to 4200 MHz, a 2.3:1 bandwidth. The ultra-wide band directional antenna array can have ultra-wide bandwidth and narrow elevation and azimuth beamwidths which can allow for an enhancement in the link budget between the base station and the mobile or client by increasing the signal strength from the basestation and decreasing the received signal strength from interfering sources.

Abstract: An antenna assembly can include a cover and a base configured to be removably coupled to the cover. The antenna assembly can include one or more of: a UHF radiator portion, a VHF radiator portion, one or more multi-band radiator portions, one or more dual-band WiFi radiator portions, a GPS antenna, and a loop antenna portion positioned between the cover and the base. The loop antenna can be suspended below the UHF and VHF radiator portion and above the multi-band and dual-band WiFi radiator portions, and can be configured for AM and FM radiofrequency signals. The antenna assembly can be used for broadcast television reception and multi-band wireless telecommunications. The antenna assembly can have a compact aerodynamic profile. The UHF radiator portion and VHF radiator portion can be formed on separate flex-circuits that can be coupled to internal ribs in the cover.

Abstract: Embodiments of the present invention provides an antenna and an antenna system. The antenna includes a body member, a head member integrally connected to a first edge of the body member, wherein the head member forms a fold having a first angle towards the front face of the body member, and a first arm member and a second arm member, wherein the first arm member and the second arm member are integrally connected to the body member corresponding to the second edge and the third edge of the body member, and wherein the set of arm members each form a fold having a second angle towards the front face of the body member.

Abstract: A system, device, and method for sensing air quality with a sensor platform is disclosed. The method includes (i) directing an air quality measurement system to a predicted high information region wherein the predicted high information region is determined based on high variance of prior air quality measurements taken at different times, (ii) directing the air quality measurement system to a predicted low information region wherein the predicted low information region is determined based on low variance of prior air quality measurements taken at different times. The air quality measurement system is preferentially directed to the predicted high information region.

Abstract: A system, device, and method for sensing air quality with a sensor platform is disclosed. The method includes (i) directing a set of mobile sensors to a coarse region wherein the coarse region has coarse size based on variance of prior air quality measurements taken at locations within a vicinity of the coarse region, and (ii) directing the set of mobile sensors to a fine region wherein the fine region has a fine size based on variance of prior air quality measurements taken at locations within a vicinity of the fine region. The variance of air quality measurements associated with the fine region is greater than a variance of air quality measurements associated with the coarse region.

Abstract: A resin infusion method that incorporates a melt-on-demand approach. The method includes: (a) providing a curable resin composition in the form of a block of frozen resin (20); (b) coupling the block of frozen resin (20) to an inlet port of a heated extruder (22), which comprises at least one rotating screw (24) housed within a heated barrel (25); (c) progressively melting the block of frozen resin (20) at the inlet port and concurrently feeding the melt resin through the heated barrel (25) to produce a liquid resin having a viscosity suitable for resin infusion; (d) continuously feeding the liquid resin exiting from the extruder to a mold, which contains a fibrous preform; and (e) introducing the liquid resin into the fibrous preform, wherein the block of frozen resin (20) provides an amount of resin composition sufficient for infusing the entire fibrous preform.

Abstract: A resin infusion method that incorporates a melt-on-demand approach. The method includes: (a) providing a curable resin composition in the form of a block of frozen resin (20); (b) coupling the block of frozen resin (20) to an inlet port of a heated extruder (22), which comprises at least one rotating screw (24) housed within a heated barrel (25); (c) progressively melting the block of frozen resin (20) at the inlet port and concurrently feeding the melt resin through the heated barrel (25) to produce a liquid resin having a viscosity suitable for resin infusion; (d) continuously feeding the liquid resin exiting from the extruder to a mold, which contains a fibrous preform; and (e) introducing the liquid resin into the fibrous preform, wherein the block of frozen resin (20) provides an amount of resin composition sufficient for infusing the entire fibrous preform.

Abstract: By attaching a formed steel plate in the shape of a tapered arrowhead with fins at each of the four corners, to the base of a post it is possible to ram a post with a integral foot that will secure it in the ground and for that post or pole to resist both upward and rotational pressure.

Abstract: By attaching a formed steel plate in the shape of a tapered arrowhead with fins at each of the four corners, to the base of a post it is possible to ram a post with a integral foot that will secure it in the ground and for that post or pole to resist both upward and rotational pressure.