CMOS混頻器的設(shè)計(jì)技術(shù):無(wú)線技術(shù)的發(fā)展對(duì)收發(fā)信機(jī)前端電路提出的新要求是: 高的工作頻率, 低電壓, 低功耗, 高度集成。混頻器是射頻前端電路中進(jìn)行頻率變換的十分重要的模塊, 主要介紹了CMO S 混頻器的基本工作原理, 實(shí)現(xiàn)混頻的一些常見(jiàn)結(jié)構(gòu), 這些結(jié)構(gòu)的優(yōu)缺點(diǎn)。并介紹了當(dāng)前CMO S 混頻器的主要電路設(shè)計(jì)技術(shù)以及作者在混頻器跨導(dǎo)線性度分析方面進(jìn)行的研究, 文中還給出了作者設(shè)計(jì)的一個(gè)新型混頻器的結(jié)構(gòu)。
關(guān)鍵詞: CMO S 混頻器; 射頻前端; 電路設(shè)計(jì)技術(shù)

Abstract: The developm en t of w ireless comm un icat ion offers challenge on f ron tend circu it of t ran sceiver.M ixer is an impo rtan t bu ilding b lock in RF f ron tend to ach ieve f requency t ran slat ion. the basic operat ing princip le of CMO S m ixer is in t roduced, the m ixer st ructu res in common u se are p resen ted, along w ith theirs virtue and sho rtcom ings. The m ain design techn iques of m ixer, au tho rs’research on linearity analysis of t ran sconductance are also p resen ted, along w ith a new topo logy of m ixer au tho rs designed.
Keywords: CMO S m ixer; RF f ron tend; circu it design techn ique