Sharp Kabushiki Kaisha Corporation

Manabu Omori

Toshiyuki Tanaka

Jiro Nakabayashi

Shinji Hara

Kazuya Oyama

When power to be transmitted varies, a control section instructs an AGC control section to control a gain of an IQ modulation processing sectionin accordance with the power. A switch selects a power source voltage, corresponding to the power to be transmitted, from power source voltages Vto Vof a wireless module, in accordance with an instruction of the control section, so as to supply thus selected power source voltage to a power amplifier. Thus, it is possible to realize a wireless communication circuit which occupies a less area and consumes smaller amounts of power without narrowing a communication range.

Wireless communication circuit and wireless communication apparatus using the same

A wireless communication circuit in accordance with the present invention, is the wireless communication circuit having an amplifier for amplifying a signal, includes an amplification route in which the signal passes through the amplifier; a bypass route for bypassing the amplifier; and a route-selector for selecting one of the amplification route and the bypass route. This arrangement prevents an amplification of a signal, being transmitted or being received, when a communication counterpart is in a close distance, thereby reducing an unnecessary power consumption.

Growing community of inventors

Sakai, Japan

Manabu Omori