Patent ID: 8344888
Filing Date: 2013-01-01
Classification: H01Q,H04B

Abstract:
1. A semiconductor device comprising: a signal processing circuit; a first antenna and a second antenna which are electrically connected to the signal processing circuit, wherein the first antenna and the second antenna are electrically connected to a common antenna terminal and the signal processing circuit is electrically connected to the antenna terminal; and a storage device for supplying electric power to the signal processing circuit, wherein the first antenna is configured to receive a signal by an electromagnetic induction method or an electromagnetic coupling method using a coil-shaped conductor; wherein the second antenna is configured to receive a signal by a microwave method using a conductor formed of a right triangle conductor and a first linear conductor, which are connected to each other, and a second linear conductor that is connected to said common antenna terminal; wherein the signal processing circuit is configured to receive and transmit information via the first antenna, wherein the signal processing circuit is configured to receive and transmit information via the second antenna; and wherein the signal processing circuit is configured to generate a direct current voltage from the signals received by the first antenna and the second antenna and the storage device is charged up by the direct current voltage.