Wireless communication device

A wireless communication device comprising:

• a digital modulation signal generator that generates digital modulation signals;
• a DAC that converts the digital modulation signals into analog signals;
• a modulator that generates amplified quadrature modulation signals by exerting quadrature modulation and amplification on the analog signals;
• an antenna that radiates the amplified quadrature modulation signals;
• a power detector that outputs power detected signals obtained from power detection of the amplified quadrature modulation signals;
• a controller that adjusts gain of the modulator by using the power detected signals and a desired power value;
• a thermometer that measures ambient temperatures at a plurality of burst transmission periods;
• and
• a high-power prevention circuit that readjusts the gain of the modulator for a present burst transmission period by using the ambient temperature at a past burst transmission period, the ambient temperature at the present burst transmission period, a predetermined temperature difference threshold, and the adjusted gain of the modulator.