NDLI: The third order intermodulation distortion analysis of microwave passive mixers in radar receivers

Content Provider	IEEE Xplore Digital Library
Author	Hui Zhao Haiyan Ma
Copyright Year	2012
Description	Author affiliation: AVIC Radar and Avionics Institute, 796 Liang Xi Road, Wuxi, Jiangsu Province 214063 P. R. China (Hui Zhao; Haiyan Ma)
Abstract	Microwave mixers are widely used in radar receivers as down-converting components, the dynamic range of which is one of the key parameters that determine the radar detecting performance. In this paper, the nonlinear behavior of the mixer is derived and depicted in the equations. It is obvious that the third order output intercept point (OIP3) of the mixer will be degraded by mismatching IF output impedance as well as changing the power levels of the RF and local oscillation (LO). It is what often happens in the practical RF system. The analysis is proved by the following simulation and measurement. This result will be valuable for designers to design and debug their receivers.
Starting Page	1
Ending Page	3
File Size	831309
Page Count	3
File Format	PDF
ISBN	9781467321846
e-ISBN	9781467321853
DOI	10.1109/ICMMT.2012.6230372
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-05-05
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Mixers Radio frequency Schottky diodes Impedance Passive radar Radar detection
Content Type	Text
Resource Type	Article

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The third order intermodulation distortion analysis of microwave passive mixers in radar receivers