英语翻译1、The heterodyne receiver architecture was ruled out due to the need of off-chip image rejection filters which opposes the goal of a low-cost application where direct antenna coupling is preferred.2、A traditional RF front-end consists of an LNA followd by I and Q mixers driven by I and Q LO signals ,respectively.(LO本季振荡器)3、A microphotograph of the 5.77mm² die is shown in Fig.14.(图表14)(die如何理解?)(来自《A Fully Integrated 2.4-GHz IEEE 802.15.4-Compliant
问题描述:
英语翻译
1、The heterodyne receiver architecture was ruled out due to the need of off-chip image rejection filters which opposes the goal of a low-cost application where direct antenna coupling is preferred.
2、A traditional RF front-end consists of an LNA followd by I and Q mixers driven by I and Q LO signals ,respectively.(LO本季振荡器)
3、A microphotograph of the 5.77mm² die is shown in Fig.14.(图表14)(die如何理解?)
(来自《A Fully Integrated 2.4-GHz IEEE 802.15.4-Compliant Transceiver for ZigBee™ Application)
答
【是这个意思】:1、外差式接收机的结构设计,并非是为适应离片图像带阻滤波器的需要而考虑的,因为带阻滤波器与优先直接天线联接的低成本应用的目标相悖.2、传统的RF前端设备是由一个LNA 以及附设的I与Q混音器所组成,...