论文部分内容阅读
本文介绍使用国产大功率晶体三极管制作的一千兆赫微带振荡器,具有效率高、频稳度好、调频噪声低等良好性能,亦可做变容管调谐振荡器。此振荡器经各兄弟单位多次小批量仿制,重复性能良好。本文叙述使用3DA89C微波功率晶体三极管制作的微带振荡器。振荡频率可在较宽范围内调谐,当集电极电压为24伏时,在1GHz频率上,可提供大于2W的输出功率,百分之三十左右的效率,具有低的调频噪声。振荡器有良好的频率稳定性,当电源电压或负载变动时,其振荡频率变化不大。温度从室温升高至55℃时,频率相对变化小于5×10~天(-4)。该振荡器除具有上述良好电气性能外,还有电路简单、加工容易、成本低等优点,故在1GHz频段可有较广泛的应用。
This article describes the use of domestic high-power transistor produced a gigahertz microstrip oscillator, with high efficiency, good frequency stability, low FM noise, good performance, can also do varactor tunable oscillator. The oscillator by the brother unit many small quantities of imitation, good repeatability. This article describes the use of 3DA89C microwave power transistor produced by the microstrip oscillator. The oscillation frequency can be tuned over a wide range. With a collector voltage of 24V, it delivers greater than 2W output power, about 30% efficiency at 1GHz, and low FM noise. The oscillator has a good frequency stability, when the supply voltage or load changes, the oscillation frequency changes little. The temperature changes from room temperature to 55 ℃, the relative change in frequency less than 5 × 10 ~ days (-4). In addition to the above oscillator with good electrical properties, there are simple circuits, easy processing, low cost, it can be more widely used in the 1GHz band.