Abstract:
A process of forming a semiconductor integrated circuit that includes the steps of: forming at least a first element having a first pattern of conductive material and including a polymer layer surrounding the conductive material, forming at least a second element having a second pattern of conductive material and including a polymer layer surrounding the conductive material, positioning the first element relative to the second element, and bonding the polymer layer of the first and second elements at a temperature below a melting temperature of the conductive materials of the first and second elements wherein the conductive material of the first element contacts the conductive material of the second element and is maintained in position by the bonded polymer layers.
Abstract:
The present invention discloses an energy harvesting device that converts small magnitude and low frequency vibrations into electrical energy. The device can include a base, a low frequency element, and a piezoelectric element. The low frequency element can be movably attached to the base and the piezoelectric element can also be attached to the base and be spaced apart from the low frequency element with a vacant space therebetween. Upon vibration of the low frequency element resulting from environmental vibrations, the low frequency element can impact the piezoelectric element and cause elastic deformation thereto.
Abstract:
The present invention discloses an energy harvesting device that converts small magnitude and low frequency vibrations into electrical energy. The device can include a base, a low frequency element, and a piezoelectric element. The low frequency element can be movably attached to the base and the piezoelectric element can also be attached to the base and be spaced apart from the low frequency element with a vacant space therebetween. Upon vibration of the low frequency element resulting from environmental vibrations, the low frequency element can impact the piezoelectric element and cause elastic deformation thereto.
Abstract:
A process of forming a semiconductor integrated circuit that includes the steps of: forming at least a first element having a first pattern of conductive material and including a polymer layer surrounding the conductive material, forming at least a second element having a second pattern of conductive material and including a polymer layer surrounding the conductive material, positioning the first element relative to the second element, and bonding the polymer layer of the first and second elements at a temperature below a melting temperature of the conductive materials of the first and second elements wherein the conductive material of the first element contacts the conductive material of the second element and is maintained in position by the bonded polymer layers.
Abstract:
An apparatus for reducing crosstalk including a substrate having a bottom surface and a top surface defining a horizontal plane, a ground plane coupled to the bottom surface of the substrate, first and second microstrip lines formed on the top surface of the substrate, the first and second microstrip lines formed on the top surface of the substrate and spaced apart from one another, and a first plurality of vias traveling through the substrate from the top surface of the substrate to the ground plane and positioned between the first and second microstrip lines for reducing crosstalk between the first and second microstrip lines.
Abstract:
A method for fabricating a microwave horn antenna in which a thermoplastic sacrificial layer is mounted to a thermoplastic horn layer. A heated horn embossing plate having at least one horn shaped embossing element is then moved into the horn layer so that the horn element penetrates through the horn layer and extends partially into the sacrificial layer thus forming a horn opening in the horn layer complementary in shape to the horn element. The horn layer and sacrificial layer are then separated from each other and the horn opening and at least a portion of the back surface of the horn layer is covered with a metal coating. A thermoplastic wave guide layer formed by embossing wave guide channels into the layer is covered with metal and attached to the back side of the horn layer to form the antenna. Alternatively, a portion of the horn and the remaining portion of a microwave channel are formed in both a first and second thermoplastic section. These portions of the microwave guide channel and horn are then coated with a metal material and the sections are secured together in a facing relationship so that the horn portions and wave guide channel portions on both the first and second sections register with each other.
Abstract:
A waveguide to microstrip transition having a waveguide open at one end. A dielectric substrate includes a first and a second side and a ground plane covers the first side of the substrate. The dielectric substrate overlies the waveguide opening so that the ground plane faces the waveguide and an opening in the ground plane registers with the waveguide opening. A back short having a housing is positioned on the second side of the dielectric substrate. The back short housing forms a cavity which registers with at least a portion of the ground plane opening so that microwave energy from the waveguide passes through the dielectric substrate and into the cavity defined by the back short housing. The back short housing has at least one opening to the cavity along the second side of the dielectric substrate. A pair of spaced apart microstrips on the second side of the substrate each have a free end positioned in the cavity so that the free ends of the microstrips are spaced apart from each other.
Abstract:
A transceiver array that employs vertically integrated circuits in one or more wafers. The array includes a digital wafer having digital circuits. A plurality of RF cubes are formed to the digital wafer, where each RF cube includes an antenna wafer and at least one lower wafer, and where each RF cube represents a separate channel of the array. The antenna wafer includes a patch antenna and a resonating cavity. The at least one lower wafer includes high frequency RF integrated circuits and intermediate frequency RF integrated circuits. The array has application as a front-end for a digital beam-forming system.
Abstract:
The automotive radar includes a printed circuit board having a top surface and a bottom surface, and a processor mounted on the bottom surface of the printed circuit board. The automotive radar also includes a second liquid crystal polymer layer formed on the top surface of the printed circuit board, a second microstrip array printed on the second liquid crystal polymer layer, the second microstrip array having a patch, a first liquid crystal polymer layer formed on the second liquid crystal polymer layer, a first microstrip array printed on the first liquid crystal polymer layer, the first microstrip array having a perforated patch, and a transmit/receive module connected to a bottom surface of the second liquid crystal polymer layer and configured to transmit a first frequency signal to the first microstrip array and a second frequency signal to the second microstrip array.
Abstract:
An evanescent mode resonator including a cavity formed in a substrate of semiconductor material. The resonator includes a capacitive post positioned within the cavity, and a tuning element positioned within the wall of the cavity proximate to the capacitive post, where a gap between the flexible element and the post sets the tuning of the resonator.