【摘要】 射频前端模块性能关系到整个接收机的性能,直接下变频接收机有体积小,价格低和高集成度的优点而受到了广泛的重视。本文对直接下变频接收机进行了研究,分析了该接收机特点,提出了一种直接下变频接收机的射频前端实现方案,并用软硬件平台对其实现,实测的2.4G本地振荡信号和接收机解调信号表明达到系统要求指标。更多还原

【Abstract】 RF front ends is relation to the performance of the whole receiver, DCR is widely noticed due to small volume, low price and high integration. This paper researches on DCR , analyzes the character, and presents a RF front-end implementation method. The hardware and software design of the receiver are realized. The measured LO and demodulation signal result show the performance of the receiver achieves system requirement.更多还原