標題: 10 GHz dual-conversion low-IF downconverter with microwave and analogue quadrature
作者: Syu, J. -S.
Meng, C.
Teng, Y. -H.
電信工程研究所
Institute of Communications Engineering
公開日期: 18-六月-2009
摘要: A 10 GHz dual-conversion low-IF downconverter using 0.18-mm CMOS technology is demonstrated. The high-frequency quadrature RF and LO(1) signals are generated by broadside-coupled quadrature couplers while a two-section polyphase filter is utilised for the low-frequency LO(2) quadrature signal generation. As a result, the demonstrated downconverter achieves a conversion gain of 7 dB, IP(1dB) of -16 dBm, IIP(3) of 25 dBm and noise figure of 26 dB at a 1.8 V supply. The image-rejection ratio of the first/second image signal is 33/42 dB for IF frequency ranging from 10 to 60 MHz, respectively.
URI: http://dx.doi.org/10.1049/el.2009.0360
http://hdl.handle.net/11536/7100
ISSN: 0013-5194
DOI: 10.1049/el.2009.0360
期刊: ELECTRONICS LETTERS
Volume: 45
Issue: 13
起始頁: 685
結束頁: 686
顯示於類別:期刊論文


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  1. 000267820600018.pdf