摘要:
An approximately rectangular plate-shaped radiation member (2) is provided and support portions (4,6) are attached to lower surface end portions adjacent to a pair of parallel shorter sides of the radiation member (2). The support portion (4) is composed of a laminated circuit member including a laminated demultiplexer and a laminated band pass filter of the reception side and the transmission side respectively connected to the laminated demultiplexer. The radiation member (2) has a power supply terminal (2c) and a ground terminal (2d) at the end portion where the support portion (4) is mounted. The power supply terminal (2c) and the ground terminal (2d) are connected to an antenna terminal (4a) and the ground terminal (4b) of the laminated circuit, respectively. The radiation member (2) has a radiation electrode (2a) where a slot (2b) is formed. The shape of the slot is set so that the radiation electrode (2a) causes resonance in a plurality of frequency bands.
摘要:
At least one filter block (25, 35, 45) is formed in a thin and flat dielectric multilayer structure (21) and fixed with radiation elements (2, 3). Each filter block includes at least one of a low-pass filter, a high-pass filter and a band-eliminating filter. On the surface (one major surface) side and/or the side face of the multilayer structure, at least one radiation element (2, 3) being connected with the filter block is provided and feeding parts (28, 38, 48) for supplying signal to the radiation elements are provided on the rear surface of the multilayer structure. Consequently, the antenna and the filter block are integrated and a small surface mountable antenna with a built-in filter of a structure such that signals are not mixed each other even when signals of a plurality of frequency bands are transmitted/received can be obtained.
摘要:
An antenna element 1 is formed such that a plurality of turning parts 13, 15, 17 are formed by being turned back in zigzag in parallel to a ground conductor film 2 while extending perpendicularly thereto and the lengths of segments 12, 14, 16, 18 between the turning parts are shorter on a side of the ground conductor film 2 (a side of a feeding part 4) and increase gradually as the segments are away from the ground conductor film 2. The turning parts of the antenna element 1 are formed such that the antenna resonates at two or more frequency bands, and has a fractional bandwidth of 4% or more of its frequency in a first frequency band and a fractional bandwidth of 15% or more of its frequency in a second frequency band by adjusting the lengths L1, L2 and L3 of respective segments and the intervals d1, d2 and d3 between adjacent segments. Consequently, a wideband antenna is realized in two or more multi-frequency bands, for example 2.4 to 2.5 GHz and 5 to 6 GHz, by using a single folded antenna.
摘要:
A laminated dielectric block (3) is formed by laminating dielectric sheets (31) each having a conductive film formed on its one surface so as to constitute at least one filter (2). A radiation element (1) is provided so as to fix to the laminating dielectric block, wherein one electrode of the filter is electrically connected to the radiation element. The other electrode (22) of the filter is connected to a feeding terminal electrode (4) provided mounting face B (a face opposing to a circuit board) of the laminated dielectric block through a via-contact (33) and a wiring (34), not being exposed to the side face. As a result, an antenna with built-in filter of the structure where even if it is mounted on a circuit board, interference between an electronic circuit on the circuit board and the feeding terminal electrode of the antenna is prevented to improve the isolation characteristic and transmitting or receiving characteristic.
摘要:
A laminated dielectric block (3) is formed by laminating dielectric sheets (31) each having a conductive film formed on its one surface so as to constitute at least one filter (2). A radiation element (1) is provided so as to fix to the laminating dielectric block, wherein one electrode of the filter is electrically connected to the radiation element. The other electrode (22) of the filter is connected to a feeding terminal electrode (4) provided mounting face B (a face opposing to a circuit board) of the laminated dielectric block through a via-contact (33) and a wiring (34), not being exposed to the side face. As a result, an antenna with built-in filter of the structure where even if it is mounted on a circuit board, interference between an electronic circuit on the circuit board and the feeding terminal electrode of the antenna is prevented to improve the isolation characteristic and transmitting or receiving characteristic.
摘要:
An antenna element 1 is formed such that a plurality of turning parts 13, 15, 17 are formed by being turned back in zigzag in parallel to a ground conductor film 2 while extending perpendicularly thereto and the lengths of segments 12, 14, 16, 18 between the turning parts are shorter on a side of the ground conductor film 2 (a side of a feeding part 4) and increase gradually as the segments are away from the ground conductor film 2. The turning parts of the antenna element 1 are formed such that the antenna resonates at two or more frequency bands, and has a fractional bandwidth of 4% or more of its frequency in a first frequency band and a fractional bandwidth of 15% or more of its frequency in a second frequency band by adjusting the lengths L1, L2 and L3 of respective segments and the intervals d1, d2 and d3 between adjacent segments. Consequently, a wideband antenna is realized in two or more multi-frequency bands, for example 2.4 to 2.5 GHz and 5 to 6 GHz, by using a single folded antenna.
摘要:
A detector (11) of the present invention detects cessation of input to an input form by a user. A generator (12), when input is started again by the user after the user ceased input, acquires an input status of input to the form by the user that was outputted from a monitor that monitors the input status of the input of the information by the user, estimates a cause for input being ceased by the user based on the input status, and then, based on the estimated cause, generates a new input form for which input conditions have been relaxed.
摘要:
A roller device may include a main body, a first roller configured to rotate around an first axis line extending in a predetermined axial direction, the first roller including an end portion in the axial direction, and a supporting member including a first supporting portion configured to rotatably support the end portion of the first roller and an engaging portion configured to engage the main body. Further, the main body including a regulating portion disposed inside the movable range when the supporting member is located at a third position and disposed outside the movable range when the supporting member is located at a fourth position.
摘要:
According to one embodiment, a server 11 performs aggregate signal processing for n-to-one signal transmission. The processing includes waiting processing and time adjusting processing. In the waiting processing, from a time point where a first constitutional element signal constituting a specific aggregate signal bound for the upper level control center reaches the server until a wait time that is based on a preset condition elapses, the server waits for another constitutional element signal of the specific aggregate signal to arrive (S202-S208). In the time adjusting processing, the server extracts an earliest generation time from generation times attached respectively to constitutional element signals arriving during the waiting processing, and attaches the extracted time as a generation time of the specific aggregate signal (S210).
摘要:
A halogen-free pressure-sensitive adhesive tape including a tape substrate made of a non-halogen resin composition containing no halogen elements and, applied to at least one side of the substrate, a pressure-sensitive adhesive containing a modified acrylic resin obtained by copolymerizing acrylic acid or an acrylic ester with a monomer which forms a tackifier resin.