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一、引言 早先的X波段雷达发射机,多采用磁控管,振荡式工作,其频率应变能力差,抗干扰性能不好。近期逐渐发展起来的主振放大式雷达,能在较宽的频带内,实现频率的捷变,抗干扰能力好,成为雷达的研究重点。 本文所述的主振放大式雷达发射机,主振讯号功率较小。末级输出讯号功率较大,中间需加接几种频率范围的功率放大器。对它们的要求是:工作频率在7～12GHz,带宽B在1GHz以上,增益G_p大于或等于7dB,输出功率P。≥50和150mW。
First, the introduction of the previous X-band radar transmitter, the use of magnetrons, oscillating work, the frequency response ability of poor, anti-jamming performance is not good. The recently developed main vibration amplifier radar can achieve frequency agility and anti-interference ability in a wide frequency band and become the research focus of radar. The main vibration amplification radar transmitter described in this article, the main vibration signal power is small. Last stage output signal power is larger, the middle need to add several frequency range of the power amplifier. Their requirements are: operating frequency at 7 ~ 12GHz, bandwidth B at 1GHz above, gain G_p greater than or equal to 7dB, the output power P. ≥50 and 150mW.