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AN EFFICIENT SPICE-BASED TECHNIQUE FOR PERFORMANCE CHARACTERIZATION OF BJT MIXERS

RABIN RAUT

Department of ECE, Concordia University, 1455 de Maisonneuve Boulevard W., Montreal, Quebec H3G 1M8, Canada

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VIJAY DEVABHAKTUNI

EECS Department, University of Toledo, Mail Stop 308, Toledo, OH 43606, USA

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, and

NILADRI ROY

COM DEV Canada, 303 Terry Fox Dr., Suite 100, Kanata, Ontario K2K 3J1, Canada

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https://doi.org/10.1142/S0218126610006700Cited by:1 (Source: Crossref)

Abstract

In this paper, we present a fast and simple SPICE-based technique for the performance characterization of BJT mixers. First, exploiting fundamental concepts, an AC equivalent circuit of a radio-frequency bipolar junction transistor mixer is derived. Second, this equivalent circuit is used to estimate the conversion gain, noise-figure, and nonlinearity characteristics of the mixer. The proposed technique has been validated using simulations on integrated and discrete transistor based mixer circuits.

This paper was recommended by Regional Editor Krishna Shenai.

Keywords:

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