IEICE Electronics Express
Online ISSN : 1349-2543
ISSN-L : 1349-2543
LETTER
Highly linear Post Distortion Cancellation common-gate Gilbert-mixer in Ku-band
Hedieh ElyasiAbdolreza Nabavi
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JOURNAL FREE ACCESS

2011 Volume 8 Issue 13 Pages 1014-1021

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Abstract

This paper presents a new Post Distortion Cancellation (PDC) Gilbert-mixer for Ku-band applications to minimize the third-order nonlinear current of transconductance transistors. To illustrate the effectiveness of this scheme, distortion analysis using Volterra series is given. An extra inductor is added between source nodes of switching transistors to decrease the deteriorating effect of parasitic capacitances. The proposed mixer has been simulated in a 0.18-µm RF-CMOS technology and consumes only 6-mW from a 1.8-V supply. Compared to conventional Gilbert-mixer, it typically improves IIP3 by 4.2dB, power conversion gain by 1.1dB and noise figure by 1.4dB.

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© 2011 by The Institute of Electronics, Information and Communication Engineers
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