| 摘要 |
<p>Provided is a wireless circuit with which a signal to be transmitted is generated without using a synthesizer, allowing miniaturization. The wireless circuit (1) comprises: a modulator (10) which generates a modulated signal from a signal which denotes data to be transmitted; a frequency conversion unit (11) which converts a frequency of the modulated signal to an intermediate frequency; a DAC (12) which converts the modulated signal which is converted to the intermediate frequency to an analog signal; a BPF (13) which filters an image component which is associated with a specified high-frequency band, among image components which, in the conversion by the DAC (12), appear vertically away from each integer multiple of a sampling frequency of the signal conversion unit by the intermediate frequency; a signal amplifier unit (14) which amplifies the filtered image component; and an antenna (16) which transmits the amplified image component.</p> |
