Patent ID: 8988207
Filing Date: 2015-03-24
Classification: B60C,H01Q

Abstract:
1. An information-acquiring device comprising: a casing permeable to radio waves; a transmitter stored inside the casing, the transmitter including: an electronic circuit having a sensor configured to detect predetermined physical information, and a transmitting circuit configured to transmit the physical information detected by the sensor, a coil-shaped antenna configured to radiate a signal containing the physical information as a radio wave having a predetermined frequency, the antenna being connected to the transmitting circuit, and a main body of the electronic circuit being positioned in a space other than a space present in the direction of a coil axis of the antenna, the main body of the electronic circuit is positioned in a space other than a space enclosed by an imaginary surface that forms a predetermined angle of 5° or more with respect to the coil axis toward the outside from a position on an edge of an aperture surface of an end part of the antenna in the direction of the coil axis.