| 摘要 |
<p>The temperature compensations of two characteristics of an oscillation frequency and a modulation band of an oscillator used in a radar system are realized exclusively with a frequency control voltage to be applied to an oscillation unit. A voltage-controlled oscillator is constituted to include a plurality of generation units of frequency-controlled voltages to be inputted to a voltage-controlled oscillation unit, to input control voltages from the individual generation units to an operation unit, and to input the voltage added by the operation unit to the voltage-controlled oscillation unit. Frequency-controlled voltage generation units are individually equipped with input voltage terminals and output voltage terminals, and a voltage dividing circuit is constituted to include elements such as thermisters having electric resistances varied with the temperature, and ordinary resistance elements.</p> |
