IEICE Electronics Express
Online ISSN : 1349-2543
ISSN-L : 1349-2543
LETTER
A 45MHz-2.5GHz broadband CMOS up-conversion mixer with a bisymmetric class-AB input stage
Wei ZouHaotian ChenDaming RenXinyu ZhangLi ZhangZhengwang ChengXinguo MaChuyun HuangXuecheng Zou
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2022 Volume 19 Issue 22 Pages 20220402

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Abstract

A 45MHz-2.5GHz broadband CMOS up-conversion mixer implemented in a conventional 0.18µm CMOS technology is presented in this letter. The offered mixer employs a bisymmetric class-AB input stage in order to provide a high linearity and match the IF input impedance over a 0.3-20.15MHz frequency range. The up-conversion mixer draws 3mA current from a 1.8V supply voltage, and the core chip dimension of the mixer is 0.05*0.08mm2. At the frequency range of 45MHz-2.5GHz, the output third-order intercept point (OIP3) is larger than 9dBm, the LO-RF isolation characteristic of the mixer is less than -60dB, and the maximum conversion gain is 5.21dB. The mixer achieves a minimum noise figure of 8.42dB.

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© 2022 by The Institute of Electronics, Information and Communication Engineers
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