| 摘要 |
<p>In accordance with a baseband transport signal received by a baseband signal processing part from a baseband signal input terminal (18), the collector current of a transistor (20) constituting a bias control circuit (7) varies, the drain bias of a high frequency transistor (1) varies and the oscillating frequency varies to achieve a frequency modulation, and the resultant radiated waves become a transport RF signal, thereby performing an transmitting operation. On the other hand, an oscillating signal is synchronized with an externally incoming frequency-modulated RF signal, and the resultant frequency modulation causes a frequency variation to occur as a drain bias variation of the high frequency transistor (1), and the resultant variation is derived from a baseband signal output terminal (14) by the baseband signal processing part as a voltage amplitude variation, thereby performing a receiving operation. As a result, there can be provided a microwave/millimeter wave communication apparatus of which the structure is simple, the cost is low and the power consumption is small.</p> |
