Abstract:
Carbon nanostructures can be formed into polymer composites that are electrically conductive and highly reflective of microwave radiation, thereby facilitating transmission of the microwave radiation. Microwave transmission assemblies containing carbon nanostructures can include an elongate structure containing elongate opposing surfaces that extend the length of the elongate structure and that are spaced apart from one another with a channel region defined in between. The elongate opposing surfaces include a polymer composite containing a polymer matrix and a plurality of carbon nanostructures. Each carbon nanostructure can include a plurality of carbon nanotubes that are branched, crosslinked, and share common walls with one another.
Abstract:
Methods and apparatus are disclosed for wirelessly communicating among integrated circuits and/or functional modules within the integrated circuits. A semiconductor device fabrication operation uses a predetermined sequence of photographic and/or chemical processing steps to form one or more functional modules onto a semiconductor substrate. The functional modules are coupled to an integrated waveguide that is formed onto the semiconductor substrate and/or attached thereto to form an integrated circuit. The functional modules communicate with each other as well as to other integrated circuits using a multiple access transmission scheme via the integrated waveguide. One or more integrated circuits may be coupled to an integrated circuit carrier to form Multichip Module. The Multichip Module may be coupled to a semiconductor package to form a packaged integrated circuit.
Abstract:
Example three-dimensional signal interconnections for electromagnetic waves and methods for fabricating the interconnections are described. An example apparatus may include a first conducting layer including a plurality of through-holes, and a first layer between the first conducting layer and a second conducting layer. The first layer may include a plurality of through-holes, and the second conducting layer may also include a plurality of through-holes. The plurality of through-holes of the first layer may at least partially be aligned with the plurality of through-holes of the first conducting layer and the plurality through-holes of the second conducting layer. The apparatus may further include a second layer between the second conducting layer and a third conducting layer. The second layer may have a first waveguide channel and a second waveguide channel substantially perpendicular to and intersecting with the first waveguide channel.
Abstract:
A structure (10) includes a conductor (151), conductors (111, 131) that are located on the same side with respect to the conductor (151), that are opposed to at least a part of the conductor (151), and that overlap each other when seen in a plan view, a connection member (101) that penetrates the conductors (111, 131, 151), that is connected to the conductor (151), and that is insulated from the conductors (111, 131), openings (112, 132) that are formed in the conductors (111, 131), respectively, and which the connection member (101) passes through, and conductor elements (121, 141) that are formed to be opposed to the openings (112, 132), that are connected to the connection member (101) passing through the openings (112, 132), and that are larger than the openings (112, 132). The number of layers in which the conductor elements (121, 141) are located is two or more and less than or equal to the number of layers in which the conductors (111, 131) are located.
Abstract:
A multiple conductor radio-frequency transmission line including a plurality of conductive traces, an input port, and at least one output port is disclosed. The input port includes a radio-frequency signal input line which is generally aligned with and disposed in a partially or completely overlapping relationship with the plurality of conductive traces at the input port, with the radio-frequency signal input line being at least as wide as the plurality of conductive traces at the input port. The output port includes a radio-frequency signal output line which is generally aligned with and disposed in a partially or completely overlapping relationship with at least one of the plurality of conductive traces at the at least one output port, with the radio-frequency signal output line being at least as wide as the at least one of the plurality of conductive traces at the output port. The input and output ports provide a capacitively coupled, multi-conductor structure capable of simultaneously distributing primary radio-frequency signals and secondary control signals from the input port to one or more output ports in systems such a phased array radars and wireless communications systems.
Abstract:
Embodiments described herein include an integrated circuit (IC) device. For example, the IC device can include a substrate configured to be coupled to a printed circuit board (PCB), an IC die attached to the substrate, and a waveguide launcher formed on the substrate. The waveguide launcher is electrically coupled to the IC die through the substrate.
Abstract:
A signal line that can be easily bent and significantly reduces loss generated in a high-frequency signal includes a main body including a plurality of insulating sheets made of a flexible material and stacked on each other in a stacking direction. Ground conductors are provided in the main body on the positive z-axis direction side of a signal line. The ground conductors have a slit S formed therein that overlaps the signal line when viewed in plan from the z-axis direction. A ground conductor is provided in the main body on the negative z-axis direction side of the signal line, and is overlapped by the signal line when viewed in plan from the z-axis direction. The ground conductors and the signal line define a strip line structure. A distance between the ground electrodes and the signal line is smaller than a distance between the ground electrode and the signal line.
Abstract:
Provided is an electromagnetic wave propagation sheet constituted by a mesh-shaped conductor layer, a planar conductor layer, and an inductor layer sandwiched therebetween, wherein the mesh-shaped conductor layer and the planar conductor layer are electrically connected to each other in an end section of the electromagnetic wave propagation sheet by a short conductor, and a mesh-shaped conductor that constitutes the mesh-shaped conductor layer has a meander shape in the vicinity of the electromagnetic wave propagation sheet end section.
Abstract:
A radio frequency switch includes a first transmission line, a second transmission line, a first electrode electrically coupled to the first transmission line, a second electrode electrically coupled to the second transmission line, and a phase change material, the first transmission line coupled to a first area of the phase change material and the second transmission line coupled to a second area of the phase change material. When a direct current is sent from the first electrode to the second electrode through the phase change material, the phase change material changes state from a high resistance state to a low resistance state allowing transmission from the first transmission line to the second transmission line. The radio frequency switch is integrated on a substrate.