Abstract: The present disclosure provides a multi-factor quantitative analysis method for deformation of a neighborhood tunnel. The method includes the following steps: analyzing monitoring data generated at a tunnel site; simulating collapse occurring at a shallow buried section of a tunnel; determining the degree of influence of each factor on the tunnel and a stratum; and determining quantitative influence of each factor on tunnel deformation. The present disclosure can not only provide an accurate theoretical basis for the construction of the shallow buried section of the small-distance tunnel, but also guarantee safety and cost saving during tunnel construction.

Abstract: An antenna includes a dielectric layer, a conductive ground layer formed on a first main surface of the dielectric layer, and radiation elements formed on a second main surface of the dielectric layer and are conductive. The first radiation element includes a first non-uniform width part that has a width in a direction parallel to a first side in a linear shape opposed to a first vertex, and the width of the first non-uniform width part gradually decreases in a direction from the first side to the first vertex. The second radiation element includes a second non-uniform width part that has a width in a direction parallel to a second side in a linear shape opposed to a second vertex, and the width of the second non-uniform width part gradually decreases in a direction from the second side to the second vertex.

Abstract: Wiring and a wiring path of a feed line for feeding power to a radiation element is simplified. An array antenna includes a first conductive pattern layer, first dielectric layer, conductive ground layer, second dielectric layer, second conductive pattern layer, third dielectric layer, and radiation element pattern layer that are layered in this order. The radiation element pattern layer includes radiation element pairs arranged in a two-dimensional array pattern. Each of the radiation element pairs includes a first radiation element and a second radiation element arranged side by side with an interval therebetween. The second conductive pattern layer includes branch feed lines arranged in a two-dimensional array pattern to correspond to the radiation element pairs, respectively. The first conductive pattern layer includes feed lines corresponding to the branch feed lines, respectively.

Abstract: A phased array antenna includes an antenna array substrate having a plurality of antenna elements. At least two beamformers are coupled to the plurality of antenna elements. At least two filters support different frequency bands and are respectively coupled to the at least two beamformers. A frequency converter is coupled to the at least two filters, the frequency converter including one intermediate frequency (IF) port and at least two radio frequency (RF) ports. The one IF port of the frequency converter is configured to support the at least two beamformers via the at least two RF ports. A first beamformer of the at least two beamformers is coupled to a first filter of the at least two filters to form a first beam in a direction different than a second beamformer of the first two beamformers coupled to a second filter of the at least two filters.

Abstract: An organogel composition and methods for preparing the organogel composition and preparing a surface with the organogel composition are disclosed. The organogel composition can include one or more organic solvents, one or more acrylates, and one or more functional additives. The method for preparing the organogel composition can include contacting the one or more organic solvents, the one or more acrylates, and the one or more functional additives with one another to prepare the organogel composition, and homogenizing the organogel composition to modify a shear viscosity of the organogel composition.

Abstract: A phased array antenna includes an antenna array substrate having a plurality of antenna elements. At least two beamformers are coupled to the plurality of antenna elements. At least two filters support different frequency bands and are respectively coupled to the at least two beamformers. A frequency converter is coupled to the at least two filters, the frequency converter including one intermediate frequency (IF) port and at least two radio frequency (RF) ports. The one IF port of the frequency converter is configured to support the at least two beamformers via the at least two RF ports. A first beamformer of the at least two beamformers is coupled to a first filter of the at least two filters to form a first beam in a direction different than a second beamformer of the first two beamformers coupled to a second filter of the at least two filters.

Abstract: To widen a range of an angle in which the directivity of an antenna is controllable to be high. An antenna includes a sheet-shaped laminated body that includes a conductive pattern layer, a first dielectric layer, a conductive ground layer, and an antenna pattern layer, the antenna pattern layer including element rows arranged in parallel, the element rows each including even-numbered radiation elements that are connected in series and linearly aligned at an interval in a direction orthogonal to a parallel alignment direction of the element rows, the conductive pattern layer including feed lines for feeding power to the center of each or the element rows, the element rows being divided into groups using a bending line as a boundary, by bending the laminated body along the bending line.

Abstract: A dielectric loss when a signal wave is transmitted between a feed line and an antenna element via a slot is reduced. An antenna 21 includes: a dielectric substrate 28 including a recess 28b; a conductive ground layer 27 that is bonded to the dielectric substrate 28 to cover the recess 28b, and includes slots 27a-27d arranged on an inner side relative to the recess 28b; a dielectric layer 26 bonded to the conductive ground layer 27 on a side opposite to the dielectric substrate 28 relative to the conductive ground layer 27; antenna elements 29a-29d formed on a bottom 28d of the recess 28b at positions facing the slots 27a-27d; and a feed line 24a that is formed on a side opposite to the conductive ground layer 27 relative to the dielectric layer 26, and is to be electromagnetically coupled to the antenna elements 29a-29d via the slots 27a-27d.

Abstract: To improve a gain of an antenna. An antenna 1 includes a dielectric layer 6, a conductive ground layer 7 bonded to the layer 6 and including active slots 7c-7f aligned at regular intervals, aligned active elements 9c-9f formed facing the active slots 7c-7f, respectively, first passive elements 9b, 9a aligned with and extending from one end of a row of the active elements 9c-9f, second passive elements 9g, 9h aligned with and extending from the other end of the row, a feed line 4a formed on a side opposite to the layer 7 with respect to the layer 6, to be electromagnetically coupled to the active elements 9c-9f via the active slots 7c-7f. The second passive elements 9g, 9h are arranged in line symmetry with the first passive elements 9b, 9a with respect to a line 9z passing through the center of the row and perpendicular to the row.

Abstract: Wiring and a wiring path of a feed line for feeding power to a radiation element is simplified. An array antenna includes a first conductive pattern layer, first dielectric layer, conductive ground layer, second dielectric layer, second conductive pattern layer, third dielectric layer, and radiation element pattern layer that are layered in this order. The radiation element pattern layer includes radiation element pairs arranged in a two-dimensional array pattern. Each of the radiation element pairs includes a first radiation element and a second radiation element arranged side by side with an interval therebetween. The second conductive pattern layer includes branch feed lines arranged in a two-dimensional array pattern to correspond to the radiation element pairs, respectively. The first conductive pattern layer includes feed lines corresponding to the branch feed lines, respectively.

Abstract: The present invention provides an antenna device that has a radiation pattern whose peak direction is independent of a frequency of an electromagnetic wave emitted. The antenna device includes: a ground layer (11) made of an electric conductor; a plurality of array antennas (22) provided in a layer above the ground layer (11); and a Rotman lens (32) provided in a layer below the ground layer (11). Each array antenna (22i) includes: a power feed line (23Li) at a center of which a feedpoint (23Pi) is located; and a plurality of antenna elements (241i through 248i and 251i through 258i) connected to the power feed line (23Li), and has a point symmetric shape with respect to the feedpoint (23Pi) as a center of symmetry. Each feedpoint (23Pi) is coupled to any one output port (322i) of the Rotman lens (32) via a slot (111i) provided in the ground layer (11).

Abstract: An antenna includes a dielectric layer, a conductive ground layer formed on a first main surface of the dielectric layer, and radiation elements formed on a second main surface of the dielectric layer and are conductive. The first radiation element includes a first non-uniform width part that has a width in a direction parallel to a first side in a linear shape opposed to a first vertex, and the width of the first non-uniform width part gradually decreases in a direction from the first side to the first vertex. The second radiation element includes a second non-uniform width part that has a width in a direction parallel to a second side in a linear shape opposed to a second vertex, and the width of the second non-uniform width part gradually decreases in a direction from the second side to the second vertex.

Abstract: An antenna device includes line-shaped feeding conductors arranged so as to face each patch antenna array and performing electromagnetic coupling feeding on each of the patch antennas, from a wiring-side feeding portions formed at a position intersecting a slot when viewed from the normal direction of a first surface. The patch antennas include an electrode which is arranged so as to face the wiring-side feeding portion, between two radiation elements arranged apart in the first direction, and is electromagnetically coupled from the wiring-side feeding portion. The electrode and each of the two radiation elements are electrically coupled in the first direction.

Abstract: To stabilize radiation characteristics of a radiation element by reducing bending deformation of the radiation element and widen a band of an antenna. An antenna includes: a first flexible dielectric layer; a conductive pattern layer formed on a surface of the first dielectric layer; a second flexible dielectric layer joined to the first dielectric layer on a side opposite to the conductive pattern layer with respect to the first dielectric layer; a conductive ground layer formed between the first dielectric layer and the second dielectric layer; a rigid dielectric substrate joined to the second dielectric layer on a side opposite to the conductive ground layer with respect to the second dielectric layer; and an antenna pattern layer formed between the second dielectric layer and the dielectric substrate and including one or more radiation elements, the conductive pattern layer including a feed line for supplying electric power to the radiation elements.

Abstract: Patch antennas include four radiation elements arrayed in a rectangular lattice pattern at four positions around a feeding point in the electrode, and wiring which electrically couples each of the radiation elements and the feeding point with an equal wiring length, and is fed by a line-shaped feeding conductor arranged at a position intersecting slots formed at a ground conductor plate, where the feeding conductor has a repetitive branch pattern in which multiple pieces of line-shaped wiring are connected in T-shapes being perpendicular to each other at a total of 2N?1 branch points from a base end to each of the tips, and each of the tips is bent in a same direction in the second direction from a terminal end of the line-shaped wiring to which the tip is connected.

Abstract: An organogel composition and methods for preparing the organogel composition and preparing a surface with the organogel composition are disclosed. The organogel composition can include one or more organic solvents, one or more acrylates, and one or more functional additives. The method for preparing the organogel composition can include contacting the one or more organic solvents, the one or more acrylates, and the one or more functional additives with one another to prepare the organogel composition, and homogenizing the organogel composition to modify a shear viscosity of the organogel composition.

Abstract: A transmission line includes a post-wall waveguide which includes a dielectric substrate on which a pair of post-walls is formed and a first conductor layer and a second conductor layer opposed to each other with the dielectric substrate interposed therebetween and in which a region surrounded by the pair of post-walls, the first conductor layer, and the second conductor layer is a waveguide region, a waveguide tube having a hollow rectangular shape, being connected with the first conductor layer so as to cover an opening portion formed in a side wall, and in which an inside communicates with the waveguide region through an opening formed in the first conductor layer, and a wire member which is arranged such that through the opening, a first end is located inside the dielectric substrate and a second end is located in the waveguide tube.

Abstract: Provided is a phased array antenna which can be used in the millimeter wave band and whose cost is lower than that of a conventional phased array antenna. The phased array antenna (1) includes: an optical modulator (OM) configured to generate a signal light beam SL by carrying out intensity modulation on a carrier light beam CL by use of a sum signal VIF+LO(t), the sum signal VIF+LO(t) being obtained by adding an intermediate frequency signal VIF(t) and a local signal VLO(t); and a time delay device (TD) configured to generate delayed signal light beams SL?1, SL?2, . . . and SL?n by imparting time delays ?t1, ?t2, . . . and ?tn to the signal light beam SL. Each feeding circuit (Fi) generates, from a corresponding delayed signal light beam SL?i, a delayed radio frequency signal VRF(t??ti) to be supplied to an antenna element (Ai).

Abstract: A dielectric loss when a signal wave is transmitted between a feed line and an antenna element via a slot is reduced. An antenna 21 includes: a dielectric substrate 28 including a recess 28b; a conductive ground layer 27 that is bonded to the dielectric substrate 28 to cover the recess 28b, and includes slots 27a-27d arranged on an inner side relative to the recess 28b; a dielectric layer 26 bonded to the conductive ground layer 27 on a side opposite to the dielectric substrate 28 relative to the conductive ground layer 27; antenna elements 29a-29d formed on a bottom 28d of the recess 28b at positions facing the slots 27a-27d; and a feed line 24a that is formed on a side opposite to the conductive ground layer 27 relative to the dielectric layer 26, and is to be electromagnetically coupled to the antenna elements 29a-29d via the slots 27a-27d.

Abstract: To improve a gain of an antenna. An antenna 1 includes a dielectric layer 6, a conductive ground layer 7 bonded to the layer 6 and including active slots 7c-7f aligned at regular intervals, aligned active elements 9c-9f formed facing the active slots 7c-7f, respectively, first passive elements 9b, 9a aligned with and extending from one end of a row of the active elements 9c-9f, second passive elements 9g, 9h aligned with and extending from the other end of the row, a feed line 4a formed on a side opposite to the layer 7 with respect to the layer 6, to be electromagnetically coupled to the active elements 9c-9f via the active slots 7c-7f. The second passive elements 9g, 9h are arranged in line symmetry with the first passive elements 9b, 9a with respect to a line 9z passing through the center of the row and perpendicular to the row.