Abstract: Antenna arrays, including a broadband single or dual polarized, tightly coupled radiator arrays.

Abstract: Antenna arrays, including a broadband single or dual polarized, tightly coupled radiator arrays.

Abstract: A microelectronic structure having CTE compensation for use in wafer-level and chip-scale packages, comprising a plurality of substrate tiles each having a generally planar upper surface, the upper surfaces of the tiles disposed within a common plane to provide a generally planar grid of the tiles, each respective pair of adjacent tiles having a gap disposed therebetween.

Abstract: Presently disclosed is an antenna system having an array of ridged waveguide Vivaldi radiator (RWVR) antenna elements fed through a corporate network of suspended air striplines (SAS). The SAS transfers the electromagnetic energy to the radiating element via the ridged waveguide coupler. The Vivaldi radiator matches the output impedance of the ridged waveguide coupler/SAS to the impedance of the surrounding medium. Because the coupling method and the radiating elements are wideband mediums, this antenna array is capable of wideband operation. The physical dimensions of the resulting array are also not as sensitive to its electrical performance as other antenna designs since the bandwidth is quite large, reducing the occurrence of an out-of-specification antenna due to manufacturing tolerance build-up. This also reduces the complexity of the manufacturing process, which in turn lowers cost.

Abstract: CTE compensation for wafer-level and chip-scale packages and assemblies.

Abstract: Presently disclosed is an antenna system having an array of ridged waveguide Vivaldi radiator (RWVR) antenna elements fed through a corporate network of suspended air striplines (SAS) with an electromagnetic bandgap (EBG) ground plane surrounding the ridged waveguide transition. The SAS transfers the electromagnetic energy to the radiating element via the ridged waveguide coupler. The Vivaldi radiator matches the output impedance of the ridged waveguide coupler/SAS to the intrinsic impedance of the surrounding medium. The EBG, which may be comprised of a photonic bandgap material or other metamaterial, allows for better frequency and bandwidth performance in a lower-profile array package, thereby reducing size and weight of the array for applications requiring small size and or low-inertia packaging. In alternate embodiments, radiating elements other than Vivaldi radiators may be used. This configuration also reduces the complexity of the manufacturing process, which in turn lowers cost.

Abstract: A radome is provided and includes a dielectric wall and metallic layers embedded within and/or disposed on the monolithic wall. Each of the metallic layers is configured to act as a sub-resonant reactive impedance surface at a lower frequency and as a frequency selective surface at an upper frequency.

Abstract: A radome is provided and includes a dielectric wall and one or more inductive metallic grids embedded in and/or disposed on the dielectric wall. Each of the one or more grids includes compressed grid arms and is tuned to permit bandpass transmission at upper and lower frequencies.

Abstract: A radome is provided and includes a dielectric wall and one or more inductive metallic grids embedded in and/or disposed on the dielectric wall. Each of the one or more grids includes compressed grid arms and is tuned to permit bandpass transmission at upper and lower frequencies.

Abstract: A radome is provided and includes a dielectric wall and metallic layers embedded within and/or disposed on the monolithic wall. Each of the metallic layers is configured to act as a sub-resonant reactive impedance surface at a lower frequency and as a frequency selective surface at an upper frequency.

Abstract: Presently disclosed is an antenna system having an array of ridged waveguide Vivaldi radiator (RWVR) antenna elements fed through a corporate network of suspended air striplines (SAS). The SAS transfers the electromagnetic energy to the radiating element via the ridged waveguide coupler. The Vivaldi radiator matches the output impedance of the ridged waveguide coupler/SAS to the impedance of the surrounding medium. Because the coupling method and the radiating elements are wideband mediums, this antenna array is capable of wideband operation. The physical dimensions of the resulting array are also not as sensitive to its electrical performance as other antenna designs since the bandwidth is quite large, reducing the occurrence of an out-of-specification antenna due to manufacturing tolerance build-up. This also reduces the complexity of the manufacturing process, which in turn lowers cost.

Abstract: Presently disclosed is an antenna system having an array of ridged waveguide Vivaldi radiator (RWVR) antenna elements fed through a corporate network of suspended air striplines (SAS) with an electromagnetic bandgap (EBG) ground plane surrounding the ridged waveguide transition. The SAS transfers the electromagnetic energy to the radiating element via the ridged waveguide coupler. The Vivaldi radiator matches the output impedance of the ridged waveguide coupler/SAS to the intrinsic impedance of the surrounding medium. The EBG, which may be comprised of a photonic bandgap material or other metamaterial, allows for better frequency and bandwidth performance in a lower-profile array package, thereby reducing size and weight of the array for applications requiring small size and or low-inertia packaging. In alternate embodiments, radiating elements other than Vivaldi radiators may be used. This configuration also reduces the complexity of the manufacturing process, which in turn lowers cost.