| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an electric field coupler that is miniaturized without reducing an electric characteristic and easily manufactured, a communication device, a communication system, and to provide a method of manufacturing the electric field coupler. <P>SOLUTION: An electric field coupler 10 includes a strip-like coil 100 formed by bending a strip-like conductor which meanders along a plane perpendicular to a coupling direction in which electric field coupling occurs, such that coil axes AX1 and AX2 are perpendicular to the coupling direction, the strip-like coil having an electrical length of one-half wavelength of a predetermined frequency of a radio-frequency signal and having a form in which the coil axes AX1 and AX2 surround a central part O along the plane. The strip-like coil 100 produces coupling by a longitudinal wave electric field which vibrates in the coupling direction at the central part O. <P>COPYRIGHT: (C)2010,JPO&INPIT |
