Abstract: A wireless power transmission system that transmits alternating-current power includes a power-transmitting device including first and second electrodes spaced apart and having a total width of ?/2? or less, i.e., a near field range, and a first inductor between the first and second electrodes and a AC power-generating section, and a power-receiving device including third and fourth electrodes spaced apart and having a total width of ?/2? or less, and a second inductor between the third and fourth electrodes and a load. A coupler including the first and second electrodes and the first inductor forms one resonant circuit and a coupler including the third and fourth electrodes and the second inductor forms another resonant circuit. Resonance frequencies of the couplers are substantially equal. The first and second electrodes and the third and fourth electrodes are spaced apart by ?/2? or less.

Abstract: Provided are an antenna and a combination antenna having a wide directivity in a predetermined plane direction. The antenna 100 is configured to have rims 111, 112 at left and right ends of a dielectric substrate 101 in the X direction in such a manner as to sandwich antenna elements 10. The rims 111, 112 may be metal plates or EBGs. As the rims 111, 112 are thus provided at both sides to sandwich the antenna elements 10, it is possible to reduce the width of the dielectric substrate 101 of the antenna 100 required for realizing wide coverage. As a result, it is possible to create a greater space for integration of another RF circuit and improve the space factor.

Abstract: Provided is a built-in transmitting and receiving integrated radar antenna whose coverage of a horizontal radiation pattern is widened and whose space factor is improved by integrating high-frequency circuit component onto an antenna substrate while suppressing unnecessary waves. A first dielectric substrate (111) is formed into a three-layered structure in which a bias line (171) of an MIC is disposed between a second layer (111b) and a third layer (111c) and a second ground plane (114) is disposed between the first layer (111a) and the second layer (111b). Also, the second ground plane (114) is conductively connected with isolated through-holes (163, 164), so that a domain in which a feeding port (115) is disposed is isolated from a domain (B) in which the bias line (171) is disposed.

Abstract: A wireless power transmission system that transmits alternating-current power includes a power-transmitting device including first and second electrodes spaced apart and having a total width of ?/2? or less, i.e., a near field range, and a first inductor between the first and second electrodes and a AC power-generating section, and a power-receiving device including third and fourth electrodes spaced apart and having a total width of ?/2? or less, and a second inductor between the third and fourth electrodes and a load. A coupler including the first and second electrodes and the first inductor forms one resonant circuit and a coupler including the third and fourth electrodes and the second inductor forms another resonant circuit. Resonance frequencies of the couplers are substantially equal. The first and second electrodes and the third and fourth electrodes are spaced apart by ?/2? or less.

Abstract: Provided are an antenna and a combination antenna having a wide directivity in a predetermined plane direction. The antenna 100 is configured to have rims 111, 112 at left and right ends of a dielectric substrate 101 in the X direction in such a manner as to sandwich antenna elements 10. The rims 111, 112 may be metal plates or EBGs. As the rims 111, 112 are thus provided at both sides to sandwich the antenna elements 10, it is possible to reduce the width of the dielectric substrate 101 of the antenna 100 required for realizing wide coverage. As a result, it is possible to create a greater space for integration of another RF circuit and improve the space factor.

Abstract: Provided is a built-in transmitting and receiving integrated radar antenna whose coverage of a horizontal radiation pattern is widened and whose space factor is improved by integrating high-frequency circuit component onto an antenna substrate while suppressing unnecessary waves. A first dielectric substrate (111) is formed into a three-layered structure in which a bias line (171) of an MIC is disposed between a second layer (111b) and a third layer (111c) and a second ground plane (114) is disposed between the first layer (111a) and the second layer (111b). Also, the second ground plane (114) is conductively connected with isolated through-holes (163, 164), so that a domain in which a feeding port (115) is disposed is isolated from a domain (B) in which the bias line (171) is disposed.

Abstract: Disclosed is an antenna for a radar device which is available for angle measuring in a wide angle for both of the right and the left directions from a travelling direction of a vehicle. SOLUTION: An antenna for radar device 100 comprises an antenna unit 110 as a combination of one of antenna elements 102 and one of second bottom boards 103, wherein a plurality thereof are arrayed on a first bottom board 101. The antenna element 102 is bent as L-shaped, one end thereof is opened, another end thereof penetrates the first bottom board 101 as noncontact therewith, and is connected to a transmission line 104 with further penetrating a line substrate 105.

Abstract: Provided is a radar antenna integrally formed on a dielectric radiation board to prevent occurrence of surface wave and capable of wide angle measurement. The radar antenna 400 has eight antenna units 410 formed on a radiation board 420 in 4 by 2 arrangement. On a back surface of the radiation board 420, a first ground plate 401 is formed, and a line board 405 is further formed on the first ground plate 401. A radiation part 402a is pattern-formed on the radiation board 420 and a power feeding part 402b is formed to be a through hole and connected to a transmission line 404. A second ground plate 403 has a land 403a pattern-formed on the radiation board 420 and a through hole 403b.

Abstract: Disclosed is an antenna for a radar device which is available for angle measuring in a wide angle for both of the right and the left directions from a travelling direction of a vehicle. Solution: An antenna for radar device 100 comprises an antenna unit 110 as a combination of one of antenna elements 102 and one of second bottom boards 103, wherein a plurality thereof are arrayed on a first bottom board 101. The antenna element 102 is bent as L-shaped, one end thereof is opened, another end thereof penetrates the first bottom board 101 as noncontact therewith, and is connected to a transmission line 104 with further penetrating a line substrate 105.

Abstract: A small antenna comprises a first meander part formed in such a manner that a meander conductor travels to a first direction and having a first end and a second end, and a second meander part formed in such a manner that a meander conductor travels to a second direction different from the first direction and having a first end connected with the second end of the first meander part and a second end.

Abstract: A small antenna comprises a first meander part formed in such a manner that a meander conductor travels to a first direction and having a first end and a second end, and a second meander part formed in such a manner that a meander conductor travels to a second direction different from the first direction and having a first end connected with the second end of the first meander part and a second end.