Wideband RC polyphase network for IEEE 802.11a quadrature signal generation

被引：0
|
作者：
Zhang, X. [1 ]
Yan, Y. [1 ]
Du, Z. [1 ]
Liu, K. [1 ]
机构：
[1] Chinese Acad Sci, Inst Microelect, Dept Elect Syst Technol, Beijing, Peoples R China
来源：
ELECTRONICS LETTERS | 2010年 / 46卷 / 10期
关键词：
DESIGN;
D O I：
10.1049/el.2010.2878
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：
A wideband RC polyphase network for quadrature signal generation is presented. A new approach based on a feedback calibration mechanism that capacitors are tuned according to the mismatch in amplitude of quadrature signals is proposed. The architecture is applied in an IEEE 802.11a quadrature signal generation circuit with a centre frequency of 5.5 GHz and a bandwidth of 1.8 GHz. This circuit is implemented with 0.13 mm CMOS technology consuming 0.2 x 0.26 mm die area without pads. The simulation result shows that quadrature signals have less than 2.4% amplitude error and less than 0.58 phase error with 5% R and C mismatches from 4.6 to 6.4 GHz.
引用
收藏
页码：730 / U96
页数：2
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