摘要
杂散发射是衡量移动基站通信性能的重要指标之一,是指不必要的发射机引起的发射,主要包含谐波发射、寄生发射、互调产物以及变频产物,但带外发射除外。从杂散发射的测试原理入手,提出一种双工滤波器和低噪放相结合的测试方法,并在此基础上实现了一种新型的共址杂散发射测试方案,该方案能够有效避免频谱仪灵敏度和动态范围不足的局限性,同时提高了杂散发射测试的准确性。
Spurious emission is one of the most important performance metrics of mobile base station, which are caused by unwanted transmitter effects such as harmonics emission, parasitic emission, intermodulation products and frequency conversion products except for out-of-band emissions. According to the principle of spurious emission testing, a method combined diplexer DPF with low noise amplifier （LNA） is proposed. Then, a novel solution to co- location spurious emission testing is implemented. It can not only effectively deal with the limitations of sensitivity and dynamic range of spurious analyzer, but also enhance the accuracy of spurious emission testing.
出处
《移动通信》
2018年第2期86-91,共6页
Mobile Communications
