适于视频应用的高数据传输率集成CMOS收发机

这篇文章给出了一个5GHz CMOS射频收发机的设计方案。此设计采用0.18微米射频CMOS加工工艺,集合了最新IEEE802.11n的特性例如多输入多输出技术的专利协议以及其他无线技术,可提供应用在家庭环境中的实时高清电视数据的无线高速传输。设计频率涵盖了从4.9GHz到5.9GHz的ISM频带,每个射频信道的频宽为20MHz。收发机采用了直接上变频发射器和低中频接收器的结构。在没有片上校准的情况下,设计采用双正交直接上变频混频器,得到了超过35dB的镜像抑制。测试结果得到6dB接收机噪声系数以及在-3dBm输出功率时得到发射机EVM结果优于33dB。

An integrated CMOS high data rate transceiver for video applications

This paper presents a 5GHz CMOS Radio Frequency (RF) transceiver built with 0.18mm RF-CMOS technology by using a proprietary protocol, which combines the newer IEEE 802.11n features such as multiple-in multiple-out (MIMO) technology with other wireless technologies to provide high data rate robust real time high definition television (HDTV) distribution within a home environment. The RF frequencies cover from 4.9GHz to 5.9GHz the Industrial, Scientific and Medical (ISM) band. Each RF channel bandwidth is 20MHz. The transceiver utilizes a direct up transmitter and low-IF receiver architecture. A dual-quadrature direct up conversion mixer is used that achieved better than 35dB image rejection without any on chip calibration. The measurement shows 6dB typical receiver noise figure and better than 33dB transmitter Error Vector Magnitude (EVM) at -3dBm output power.