摘要:
In one embodiment, a solar collector assembly includes a sealed and inflated cylindrical-tube shaped housing, the tube housing including a bottom cylindrically-trough shaped reflector portion having a reflection surface extending along a longitudinal length. The reflection surface is made of a relatively thin and flexible metalized polymer film. A top cylindrically-shaped transparent polymer film sheet portion is made of a relatively thin and flexible polymer film, the top and bottom sheet portions forming a pressure sealed cylindrical tube housing when the respective ends of the top and bottom films are sealed together and the tube housing is inflated with a gas so that the top transparent film portion passes solar energy to the reflection surface. A receiver tube is disposed longitudinally above the reflection surface in a focal line or focal plane of the cylindrical-trough shaped reflector portion, the absorber tube extending along the longitudinal length of the reflection surface, the absorber tube containing a first heat transfer fluid for absorbing solar energy reflected from the reflection surface to the focal line or focal plane. A passive cooling component including a partially hollowed wall structure extends below and longitudinally along the bottom cylindrical shaped housing wherein the hollowed wall structure includes multiple cooling loop convection cells formed within the hallowed wall structure.
摘要:
A system includes a first radio frequency (RF) lens having array ports and beam ports, and a second RF lens having array ports and beam ports. At least two of the second RF lens array ports are connected to at least two of the first RF lens array ports by phase-matched connectors. The RF lenses may be continuously steerable RF lenses, Rotman lenses, or discretely steerable RF lenses. The system may include first, second, third, and fourth RF switches, at least one transmitter with an associated controller, at least one receiver with associated controller, and an environment controller. The system may also include long-distance simulators connected between the RF switches of the directional simulator and the receiver or the transmitter and controlled by an environment controller. Other system embodiments include multi-pair RF lenses, as well as an RF lens connected to an antenna array system.
摘要:
A photonic processor having a high spectral resolution which separates an input optic signal into numerous channels and a method of constructing same are provided. The photonic processor includes an optical delay line spiral having dips to compensate for path length differences between the various paths such that each path is an integer multiple of a fixed path length. Straight segments are included in the spiral design to offset the dips in the spiral such that they do not overlap. A number of waveguide taps are included that may launch the channelized light signals into a photonic lens.
摘要:
Photonic signals of high bandwidth are input into a winding of optical fiber. The winding of fiber has winds of fiber that are adjacently disposed and that form a substantially linear outer surface of the winding. A series of optical taps are defined in the optical fiber along this surface. The fiber includes an inner core surrounded by an outer layer. The taps comprise a diminished outer layer section of the fiber. It is from these taps that optical energy is released from the fiber.
摘要:
Photonic signals of high bandwidth are input into a planar spiral of waveguide. The spiral has a number of waveguide loops having a series optical tap areas wherein optical energy is leaked from the loops. The leaked optical energy is received by optical tap waveguides that carry the light for further processing.
摘要:
Apparatus and method for converting heat to electrical energy by the use of one or more capacitors having temperature dependent capacitance are disclosed. The capacitor is cycled between relatively high and relatively low temperatures. Upon heating of the capacitor, the capacitance thereof is reduced, so that a charge therein is caused to expand into associated efficient external circuitry in which it is available to do electrical work. The capacitor is then cooled and recharged and the cycle is repeated. The electrical output of the capacitor results from the regenerative delivery of heat to and removal of heat from the capacitor, and efficient conversion of heat to electric energy is thereby effected.
摘要:
An integrated phased array including an array of antenna elements (130), a plurality of waveguides (122), a beam forming network (120), and an RF switch (110). The phased array may further comprise a monolithic integration module (160) comprising a dielectric layer (165) sandwiched between two conductive layers (166, 167).
摘要:
A tracking system for a solar collector assembly array where the tracking system includes a coplanar circular rim structure including multiple circular rims, where each circular rim is fitted around a respective solar collector and where each solar collector has a general shape of a sealed and inflated cylindrical tube housing having a longitudinal center axis and where each solar collector is in a horizontal planar array with respect to each other. The tracking system further includes a first elongated frame structure for supporting the circular rim structure such that all of the circular rims are generally vertically coplanar with one another. The tracking system further includes a cable serially wrapped around each of the respective circular rims to form a closed cable loop where the wrapped cable forms a series of a generally vertical coplanar loops with each loop contacting around a respective rim structure such that at least one generally complete gripping loop is formed on each respective rim. An actuator is attached to the frame structure such that actuator provides a controllable driving force to the closed cable loop to allow for controlled rotation of each solar collector assembly around its respective longitudinal axis.
摘要:
Apparatus and method for converting heat to electrical energy by the use of one or more capacitors having temperature dependent capacitance. The capacitor is cycled between relatively high and relatively low temperatures by successive thermal contact with relatively high and relatively low temperature portions of a heat transfer medium having a temperature gradient therein. Upon heating of the capacitor, the capacitance thereof is reduced, so that a charge therein is caused to expand into associated external circuitry in which it is available to do electrical work. The capacitor is then cooled and recharged and the cycle is repeated. The electrical output of the capacitor results from the regenerative delivery of heat to and removal of heat from the capacitor by the heat transfer medium, and efficient conversion of heat to electric energy is thereby effected.
摘要:
A reflector particularly adaptable to the collection of solar energy for use in heating systems, thermal to electrical conversion systems and in photovoltaic conversions systems. The reflector can also be used for transmission, or reception or both of radio frequency radiation.