| 摘要 |
PROBLEM TO BE SOLVED: To provide a wireless device, a loopback test device, and a loopback test method capable of suppressing complication of the device configuration and increase in device cost.SOLUTION: A wireless device has a transmitting section, a receiving section, and a loopback test device. The transmitting section outputs a first frequency signal by performing predetermined transmission processing of a transmission signal. The receiving section outputs a reception signal by performing predetermined reception processing of a second frequency signal. The loopback test device generates a second frequency signal by performing frequency conversion of the first frequency signal outputted from the transmitting section, and inputs to the receiving section. The loopback test device has a local oscillator, and a frequency mixer. The local oscillator generates a local oscillation frequency signal. The frequency mixer has a local terminal, an intermediate frequency terminal, and a radio frequency terminal, generates a sum difference signal on the basis of the first frequency signal inputted to the local terminal and the local oscillation frequency signal inputted to the intermediate frequency terminal and outputs, as the second frequency signal, from radio frequency terminal.SELECTED DRAWING: Figure 2 |
