6mm固态源的研究

【作者】 李翔；

【导师】 徐军；

【作者基本信息】 电子科技大学 ， 无线电物理， 2010， 硕士

【摘要】 毫米波具有独特的优点,在电子系统中得到了广泛的应用,并且能产生特殊的效应。随着军用和民用通信技术的飞速发展,对于高效率固态源的中功率放大器的需求与日俱增。然而,随着频率升高,单个器件在微波/毫米波频段上输出的功率会迅速减小,特别是在毫米波频段,单个器件的输出功率往往不能满足工程系统的要求。因而,提高器件的输出功率,获取这些器件在毫米波系统中的小尺寸、轻质量、高可靠性等诸多优点就成为当今毫米波系统发展的关键问题之一。通过组合单元器件进行功率合成的方法来获得高功率的输出,有力地推动了高效功分/合成电路的发展。本课题为6mm固态源的研制,该系统由Ku频段的DRO(Dielectric Resonant Oscillator)经一次二倍频、滤波,再经一次二倍频、滤波,倍频到V频段后进行功分,功分后每路有高通断比开关,信号通过开关后放大输出。本文系统的介绍了6mm固态源,详细的讨论了各个组件的实施方案。在上述基础上制作了6mm固态源实物,该系统提供两路可独立控制的输出信号,在现有的条件下进行了相关测试,两路输出功率均为18dBm,相位噪声小于-70dBc/Hz@10KHz,每路输出通道开关通断比均大于60dB。该系统达到了预期目标,系统中的各个部分将在文章中一一介绍。更多还原

【Abstract】 Millimeter-wave with its unique advantages in the electronic system has been widely applied, and can produce special effects. With the military and civilian communications technology is rapidly developing, for the high-efficiency solid-state source of increasing demand for power amplifiers. However, as the frequency increases, the output power a single device in the microwave band / millimeter-wave band will rapidly reduce. Especially in millimeter-wave band, the available output power of a single device often can not meet the requirements of engineering systems. Therefore, it improves the device output power, the structure has the advantages of the small size, light quality, high reliability became one of the key issues of today’s millimeter-wave system development. Components for power through a combination of single-synthesis method to obtain high output power,a strong impulse to efficient power divider / combiner circuit development.The object for the manufacture of 6mm solid-state source, the system consists of Ku-band DRO (Dielectric Resonantor Oscillator)with a second multiplier, filter, and then a second multiplier, filter, times after the V-band power divider,after power-off for every road has a high ratio switch, after amplification the output signal through the switch. This paper describes the system 6mm solid-state source, a detailed discussion of the various components of the implementation plan.Based on the above a 6mm solid-state sources has been produced physically, the system provides two-way independent control of the output signal, under the existing conditions of the relevant test, the two-way have 18dBm output power, phase noise is less than -70dBc/Hz@10KHz, each output channel switch on-off ratio is more than 60dB. The system achieved the expected target, various parts of the system will be introduced one by one in the thesis.更多还原