A Study on the Memory Effect of Mixer

Zhang, Bowei; Tong, Ling; Gao, Bo; Yang, Bin; Li, Shubiao; Liang, Shengli; Nian, Fushun

doi:10.1109/radarconf2043947.2020.9266687

Cited by 2 publications

(2 citation statements)

References 7 publications

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“…Modern communication [2,3] requires a higher width and more frequency bands, that is, the 5G communication system [4,5,6]. Therefore, the memory effects [7,8,9] of the mixer's IM products become more evident in 5G communication systems.…”

Section: Introductionmentioning

confidence: 99%

Analysing the characteristics of the memory effects of mixers using two-tone measurements

Zhang

Tong

Gao

et al. 2022

IEICE Electron. Express

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With the development of communication systems, the memory effects of mixers, defined as frequency dependence and asymmetry of intermodulation (IM) products, have become prominent. Conventional mixer models cannot describe the changing characteristics of mixers' memory effects versus tone spacing. Thus, this study aims to analyse the characteristics of mixers' memory effects instead of developing a high-accuracy model to characterise memory effects. IM3 product characteristics are described using simplified generalised frequency-response functions and a multi-box behavioural mixer model. These characteristics show that the lower and upper IM3 products have inverse trends compared to tone spacing, except for frequency dependence and asymmetry.

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Section: Introductionmentioning

confidence: 99%

Analysing the characteristics of the memory effects of mixers using two-tone measurements

Zhang

Tong

Gao

et al. 2022

IEICE Electron. Express

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“…In [6] an approach based on Volterra series is presented to model the non-linear behavior of a mixer for a simplified structure of the input signal, however the provided model does not represent the effect of memory in the mixer. It is remarkable that according to the study provided in [7], the memory effect of a mixer can influence the overall performance of the mixer considerably at some frequencies, so including memory in a mixer model is important. In [8] a general real model is provided for I/Q modulators and demodulators based on Volterra series expansion, which covers both the non-linear effect and memory effect, but since the presented model is more an I/Q modulator model rather than mixer model, it does not include the effects of local oscillator signal.…”

Section: Introductionmentioning

confidence: 99%

A Real-Valued 4D Memory Polynomial Algorithm for Mixer Modeling

Hajiabdolrahim

Wang

Fager

et al. 2022

2021 51st European Microwave Conference (EuMC)

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In this paper, we propose a real-valued multi-input memory polynomial (MP) for behavioral modeling of a mixer, which considers nonlinearity introduced by in-phase , quadrature and the local oscillator (LO) inputs. By splitting the I and Q data of the stimulus and LO signal, we use a 4-input 2-output structure of the real-valued MP model. The experimental validation based on data measured from a real mixer confirms the effectiveness of our proposed model. Compared with the Volterra series in the literature, the real-valued MP has similar modeling accuracy with much lower complexity.

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A Study on the Memory Effect of Mixer

Cited by 2 publications

References 7 publications

Analysing the characteristics of the memory effects of mixers using two-tone measurements

Analysing the characteristics of the memory effects of mixers using two-tone measurements

A Real-Valued 4D Memory Polynomial Algorithm for Mixer Modeling

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