摘要:
A wireless communication device whose impedance can be matched with an arbitrary load impedance and that can be broadened in operating frequency band even when choosing an input impedance of an IC chip freely is not possible. The wireless communication device includes: a first conductor; a second conductor disposed substantially parallel to the first conductor; a hole formed in the second conductor; a capacitive coupling mechanism disposed adjacent to the hole; and a communication circuit which has at least one of a radio wave transmitting function and a radio wave receiving function. The communication circuit is connected through the capacitive coupling mechanism to two sites on the second conductor that are near borders between the second conductor and the hole.
摘要:
Providing a method for correcting a data of irregularity of a surface of a body of rotation with an eccentricity included to a data being not affected by eccentricity. The distance data Lk between the tire crown portion 10t of the tire 10t to be inspected and the distance sensor is measured at each of measurement points Xk at every angular displacement Δθ in a circumferential direction of the tire and also radius value rk are computed from the above distance data Lk and the distance LD between the center of rotation of the tire and the distance sensor; and further the surface length Sk is computed by integrating the radius value rk with respect to Δθ from the measurement starting point to a current measurement point k and the irregularity data is converted into the form of (Xk, rk) and then the radius values Rk at the irregularity computing points Xk dividing the one round surface length Sk of the tire into equal intervals are computed based on the radius values rk and rk+1 at the measurement points Xk and Xk+1 adjacent to the irregularity computing point Xk, serving as an irregularity data (Xk, Rk) at respective points dividing the surface of the tire crown portion into equal intervals circumferentially the tire.
摘要:
To effectively reduce a measurement error in a parameter indicating two-dimensional spatial distribution of a state of polarization generated by variations in retardation of a birefringent prism pair due to a temperature change or other factors, while holding a variety of properties of an imaging polarimetry using the birefringent prism pair. By noting that reference phase functions φ1(x, y) and φ2(x, y) are obtained by solving an equation from each vibration component contained in an intensity distribution I(x, y), the reference phase functions φ1(x, y) and φ2(x, y) are calibrated concurrently with measurement of two-dimensional spatial distribution S0(x, y), S1(x, y), S2(x, y), and S3(x, y) of Stokes parameters.
摘要:
The description relates to a rectenna solar-battery hybrid panels that not only receive electric power transmitted by microwaves after the electric energy has been generated from sunlight, but also gain sunlight energy on the open faces of the panels, and to hybrid solar photovoltaic generation systems. In the rectenna solar-battery hybrid panel, a plurality of solar battery cells for receiving sunlight and converting the sunlight into electricity and a plurality of microwave receiving antenna elements for receiving microwaves transmitted through space are provided. dc electric power is obtained from microwave power, having been received by the microwave receiving antenna elements, being rectified by a rectifying circuit. Stable electric power can be obtained from the output of the solar battery cells and the rectifying circuit.
摘要:
To effectively reduce a measurement error in a parameter indicating two-dimensional spatial distribution of a state of polarization generated by variations in retardation of a birefringent prism pair due to a temperature change or other factors, while holding a variety of properties of an imaging polarimetry using the birefringent prism pair. By noting that reference phase functions φ1(x, y) and φ2(x, y) are obtained by solving an equation from each vibration component contained in an intensity distribution I(x, y), the reference phase functions φ1(x, y) and φ2(x, y) are calibrated concurrently with measurement of two-dimensional spatial distribution S0(x, y), S1(x, y), S2(x, y), and S3(x, y) of Stokes parameters.
摘要:
A loop antenna unit (2), a balanced line (3), and two perturbation elements (4) are formed on a dielectric board (1) by using manufacturing methods, such as printing and etching. The loop antenna unit (2) is formed along the circumference of a circle, and is connected to the balanced line (3). Each of the two perturbation elements (4) is a member in the shape of a tooth which is inclined 45 degrees against a direction of feeding of power via the balanced line (3) and which is projecting from the loop antenna unit (2) in an inward direction toward the center of the loop antenna unit (2). The two perturbation elements (4) are arranged at two opposite points in the loop antenna unit (2) so that they are opposite to each other.
摘要:
A power generation satellite has a photoelectric conversion unit for converting sunlight into electric energy, a transmission frequency conversion unit for performing frequency conversion of the electric energy to a microwave, a microwave control unit for controlling the amplitude, the phase, or the amplitude and the phase of the microwave, and a transmitting antenna for radiating the microwave. A plurality of the power generation satellites are placed in space to form a power generation satellite group and an array antenna having the transmitting antennas of the power generation satellites in the power generation satellite group as element antennas is formed.
摘要:
An upper clamping device and a lower clamping device are provided for clamping a double-sided optical disc in cooperation with the upper clamping device. An annular holder is axially movably provided in the upper clamping device. A plurality of spheres are radially movably mounted on the holder. A hub having a slant at a periphery thereof is axially movably provided. When the hub is downwardly moved the slant urges the spheres to engage them with an inside wall of a center hole of the optical disc. Thus, the optical disc is centered.