RADIO SIGNAL PROCESSING CIRCUIT, AND RADIO MODULE

• Main Authors: SUGIYAMA YOSHIICHI, TAKAGI TAKU
• Format: Patent
• Language: English
• Published: 24.09.2009
• Subjects: BASIC ELECTRONIC CIRCUITRY; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PULSE TECHNIQUE; TRANSMISSION

PROBLEM TO BE SOLVED: To solve the problem that in a MIMO (Multi-input Multi-output) system for transmitting different signals in parallel while using a plurality of antennas for both a transmitter and a receiver, since the antennas are disposed while being spatially separately, it is desired to dispose a first-stage amplifier of a receiving section at a position close to the antennas as further as possible but a component mount area cannot be avoided from being increased due to circuit redundancy and large scale. SOLUTION: A radio signal processing section, a radio module and a mobile communication terminal include: a filter and amplifier corresponding to a plurality of frequency bands; a band switching circuit; a signal terminal for inputting/outputting a signal on which a high frequency signal and a control signal have been superimposed; and an inductor and capacitor for separating the high frequency signal and the control signal from the signal inputted/outputted by the signal terminal. COPYRIGHT: (C)2009,JPO&INPIT