Abstract: Provided is a differential signal transmission cable, a multi-core cable, and a method of manufacturing a differential signal transmission cable that can suppress an increase in differential-to-common mode conversion quantity. The differential signal transmission cable includes two signal lines, an insulation layer covering a periphery of the two signal lines, and a plating layer covering the insulation layer. Differential-to-common mode conversion quantity of the differential signal transmission cable has a maximum value of ?26 dB or less, in a frequency band of 50 GHz or less. In the method of manufacturing a differential signal transmission cable, dry ice blasting is performed on an outer peripheral surface of the insulation layer, and then corona discharge exposure is performed on the outer peripheral surface.

Abstract: A crimping terminal includes a crimping part that is compressed to a conductive part of an electric wire, and a buffer layer formed on a surface where the crimping part contacts the conductive part. The buffer layer includes a resin, a plating or a grease and a conductive microscopic particle that is mixed and dispersed therein. The microscopic particle includes a fractal structure including a fine protrusion on a surface of the microscopic particle.

Abstract: Provided is a differential signal transmission cable, a multi-core cable, and a method of manufacturing a differential signal transmission cable that can suppress an increase in differential-to-common mode conversion quantity. The differential signal transmission cable includes two signal lines, an insulation layer covering a periphery of the two signal lines, and a plating layer covering the insulation layer. Differential-to-common mode conversion quantity of the differential signal transmission cable has a maximum value of ?26 dB or less, in a frequency band of 50 GHz or less. In the method of manufacturing a differential signal transmission cable, dry ice blasting is performed on an outer peripheral surface of the insulation layer, and then corona discharge exposure is performed on the outer peripheral surface.

Abstract: A crimping terminal includes a crimping part that is compressed to a conductive part of an electric wire, and a buffer layer formed on a surface where the crimping part contacts the conductive part. The buffer layer includes a resin, a plating or a grease and a conductive microscopic particle that is mixed and dispersed therein. The microscopic particle includes a fractal structure including a fine protrusion on a surface of the microscopic particle.

Abstract: An electric current sensor includes a plurality of bus bars arranged in parallel, a plurality of magnetic detection elements that are adapted to detect a strength of a magnetic field generated by an electric current flowing through the bus bars and to output a voltage according to the strength of the magnetic field detected, and an arithmetic operation part to arithmetically operate an electric current flowing through the bus bars based on the voltage output from the plurality of magnetic detection elements.

Abstract: A current detection structure includes a plurality of busbars arranged in parallel, and a plurality of magnetic detection elements each provided for corresponding one of the plurality of busbars so as to measure a strength of a magnetic field generated by a current flowing through the corresponding busbar. The plurality of magnetic detection elements are mounted on a single circuit board.

Abstract: An electric current sensor includes a plurality of bus bars arranged in parallel, a plurality of magnetic detection elements that are adapted to detect a strength of a magnetic field generated by an electric current flowing through the bus bars and to output a voltage according to the strength of the magnetic field detected, and an arithmetic operation part to arithmetically operate an electric current flowing through the bus bars based on the voltage output from the plurality of magnetic detection elements.

Abstract: A current detection structure includes a plurality of busbars arranged in parallel, and a plurality of magnetic detection elements each provided for corresponding one of the plurality of busbars so as to measure a strength of a magnetic field generated by a current flowing through the corresponding busbar. The plurality of magnetic detection elements are mounted on a single circuit board.

Abstract: A method of making a flat-plate antenna having thinner shape and excellent productivity, reducing labor for installation in an electrical apparatus or on a wall, and exhibiting desired antenna characteristics stably. The method includes forming a conductive flat-plate having a slit portion, a radiating element portion, and a ground portion formed by press punching a lead-frame. The method also includes laminating over the lead-frame with a resinous film. The method further includes forming first and second connecting holes through which a part of the lead-frame is exposed. The method also includes press punching the laminated lead-frame including the slit portion, the radiating element portion and the ground portion. The method still further includes connecting first and second conductors of a power supply line with the radiating element portion and the ground portion, respectively.

Abstract: A flat-plate antenna having thinner shape and excellent productivity, reducing labor for installation in an electrical apparatus or on a wall, and exhibiting desired antenna characteristics stably is provided. The flat-plate antenna comprising a conductive flat-plate, a slit portion formed through said conductive plat-plate with width proportional to frequency band width, a radiating element portion disposed one side of said slit portion, a ground portion disposed other side of said slit portion, and a power supply line having a first conductor connected to said radiating element and a second conductor connected to said ground portion.

Abstract: A flat-plate antenna having thinner shape and excellent productivity, reducing labor for installation in an electrical apparatus or on a wall, and exhibiting desired antenna characteristics stably is provided. The flat-plate antenna comprising a conductive flat-plate, a slit portion formed through said conductive plat-plate with width proportional to frequency band width, a radiating element portion disposed one side of said slit portion, a ground portion disposed other side of said slit portion, and a power supply line having a first conductor connected to said radiating element and a second conductor connected to said ground portion.

Abstract: A flat-plate antenna includes a conductive flat-plate, a slit portion formed through the conductive flat-plate with width proportional to frequency band width, a radiating element portion disposed one side of the slit portion, a ground portion disposed other side of the slit portion, and a power supply line having a first conductor connected to the radiating element and a second conductor connected to the ground portion.

Abstract: A plate antenna has a slot formed by incising a conductive plate. A first radiating conductor and a second radiating conductor are formed with a center axis in the length direction of the slot as a border. Power is supplied through opposing two conductive edges which form the slot. The conductive plate is not provided with a dielectric substrate.

Abstract: A slot 2 is defined by notching a conductor plate 1, a first radiation conductor 3 and a second radiation conductor 4 are disposed by sandwiching the slot 2 as a boundary, a third radiation conductor 5 connected to either of the first radiation conductor 3 or the second radiation conductor 4 is provided in the slot 2, if necessary, on and after third radiation conductors, for example, a fourth and fifth radiation conductors connected to either of the first radiation conductor 3 or the second radiation conductor 4 are provided, a power is supplied in the slot by the use of conductor edges of at least two radiation conductors, if required, whereby two monopole antennas and slot antennas, which use respective electric currents on the first radiation conductor 3 and the second radiation conductor 4, are electrically formed, besides, antennas other than that described above are electrically formed by utilizing electric currents over on and after the third radiation conductors.

Abstract: A slot 2 is defined by notching a conductor plate 1, a first radiation conductor 3 and a second radiation conductor 4 are disposed by sandwiching the slot 2 as a boundary, a third radiation conductor 5 connected to either of the first radiation conductor 3 or the second radiation conductor 4 is provided in the slot 2, if necessary, on and after third radiation conductors, for example, a fourth and fifth radiation conductors connected to either of the first radiation conductor 3 or the second radiation conductor 4 are provided, a power is supplied in the slot by the use of conductor edges of at least two radiation conductors, if required, whereby two monopole antennas and slot antennas, which use respective electric currents on the first radiation conductor 3 and the second radiation conductor 4, are electrically formed, besides, antennas other than that described above are electrically formed by utilizing electric currents over on and after the third radiation conductors.

Abstract: This invention provides a plate antenna which can be incorporated easily in a portable terminal, electric appliance, wall and the like with a small space, and achieves an excellent general-purpose performance at a low cost and a high radiation efficiency with a single unit without using a grounding conductor in the portable terminal or electric appliance casing as part of the antenna.

Abstract: Provided are a low-cost and high-performance antenna that can be placed in a small space inside a portable terminal or an electric appliance or housed in a wall or the like, and an electric apparatus having the antenna. A slit having a specified width and a specified length is formed in a conductive flat plate having a specified width and a specified length. A radiating element portion shaped like a monopole antenna and a ground portion (having a specified width) are formed with the slit between them. The width of the conductive flat plate (the length of the radiating element portion) is substantially a multiple of a quarter of a wavelength attained at the operating frequency of the antenna by an odd-numbered value.

Abstract: A flat-plate antenna having thinner shape and excellent productivity, reducing labor for installation in an electrical apparatus or on a wall, and exhibiting desired antenna characteristics stably is provided. The flat-plate antenna comprising a conductive flat-plate, a slit portion formed through said conductive plat-plate with width proportional to frequency band width, a radiating element portion disposed one side of said slit portion, a grand portion disposed other side of said slit portion, and a power supply line having a first conductor connected to said radiating element and a second conductor connected to said grand portion.

Abstract: Provided are a low-cost and high-performance antenna that can be placed in a small space inside a portable terminal or an electric appliance or housed in a wall or the like, and an electric apparatus having the antenna. A slit having a specified width and a specified length is formed in a conductive flat plate having a specified width and a specified length. A radiating element portion shaped like a monopole antenna and a ground portion (having a specified width) are formed with the slit between them. The width of the conductive flat plate (the length of the radiating element portion) is substantially a multiple of a quarter of a wavelength attained at the operating frequency of the antenna by an odd-numbered value.