Design of an Optimal Layout Polyphase Filter for Millimeter-Wave Quadrature LO Generation

被引:52
作者
Kulkarni, Shailesh [1 ]
Zhao, Dixian [1 ]
Reynaert, Patrick [1 ]
机构
[1] Katholieke Univ Leuven, Dept Elect Engn ESAT, Microelect & Sensors Div MICAS, B-3001 Louvain, Belgium
基金
欧洲研究理事会;
关键词
Image rejection; millimeter-wave; optimal layout; polyphase filter (PPF); quadrature generation; 60; GHz; RECEIVER FRONT-END; TRANSMITTER; TRANSCEIVER;
D O I
10.1109/TCSII.2013.2251946
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The analysis and design of a two-stage passive RC polyphase filter for millimeter-wave quadrature local oscillator generation is presented. The layout parasitics, which significantly deteriorate the filter performance at millimeter-wave frequencies, are identified with the help of impedance variation and transfer function analysis. To alleviate this parasitic degradation, a new optimal layout structure along with parasitic-compensation technique is proposed, which results in a 15-dB improvement in image rejection ratio, as compared with a conventional layout. Using the proposed techniques, more than 35 dB of image rejection over a bandwidth of 7 GHz is demonstrated in an outphasing transmitter at 60 GHz in 40-nm CMOS.
引用
收藏
页码:202 / 206
页数:5
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