Patent ID: 8301095
Filing Date: 2012-10-30
Classification: H01Q,H04B

Abstract:
1. A portable wireless device, comprising: an antenna that receives a predetermined wireless signal; a reception circuit that performs a predetermined reception processing for a high frequency signal received by the antenna; a first reception system that electrically connects the antenna and the reception circuit in a first configuration; a second reception system that electrically connects the antenna and the reception circuit in a second configuration; a form detection section that detects a form of the antenna or a form of a housing; and a switch section that selectively switches so as to connect the first reception system or the second reception system to the antenna based on the detection result of the form detection section; wherein the first reception system comprises a first low noise amplifier that amplifies the high frequency signal when the first reception system is connected to the antenna in the first configuration; and the second reception system comprises a second low noise amplifier having a different impedance characteristic from that of the first low noise amplifier, the second low noise amplifier amplifying the high frequency signal when the second reception system is connected to the antenna in the second configuration.