| Nonlinear Distortion Analysis of Diode Frequency Mixers in Generalized Matrix Form Using Volterra Series |
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| Authors |
| | Korotkov A.S. |
| | Golovan O.A. |
| Date of publication |
| | 2021 |
| DOI |
| | 10.31114/2078-7707-2021-3-182-189 |
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| Abstract |
| | The paper is a sequential of the works, in which an analysis approach of diode mixers in the generalized matrix form by the nodal equations method is developed. This method allows a full formalization of the analysis algorithm. In the papers the linear analysis of three diode mixer circuits (balanced, double-balanced and triple-balanced) is considered. The calculation and simulation results of the conversion gains of all mixer circuits, the RF-IF isolation and the LO-IF isolation are presented. Also the estimations of the maximum achievable values of these parameters, taking into account the mismatch effect of diode parameters, are presented. All results are presented for two LO operation modes: harmonic and pulse.
This paper presents an algorithm for nonlinear analysis of diode mixers using Volterra series based on the previously developed technique. The applicability of the developed technique is demonstrated on the example of analysis of the 3-rd order nonlinear distortion coefficient of three diode mixer circuits. The representation of the 3 rd harmonic of diode current in the frequency domain is obtained, based on this representation an equivalent circuit of the mixers for the nonlinear distortion analysis is formed. The dependences of the 3-rd order nonlinear distortion coefficients on the load resistance and on the LO voltage amplitude were obtained. Calculation and simulation results are presented for two LO operation modes: harmonic and pulse. The error between the calculation and simulation results does not exceed 3 dB. Nonlinear analysis of diode mixers has shown that among all the considered mixer circuits the balance mixer has the lowest 3-rd order nonlinear distortion coefficient, and the triple balance mixer has the highest one. By varying the values of the load resistance and the LO voltage amplitude the procedure for calculating the minimum possible value of the 3-rd order nonlinear distortion coefficient at given circuit parameters is possible. |
| Keywords |
| | iode frequency mixers, 3-rd order nonlinear distortion, nodal equations method, Volterra series method. |
| Library reference |
| | Korotkov A.S., Golovan O.A. Nonlinear Distortion Analysis of Diode Frequency Mixers in Generalized Matrix Form Using Volterra Series // Problems of Perspective Micro- and Nanoelectronic Systems Development - 2021. Issue 3. P. 182-189. doi:10.31114/2078-7707-2021-3-182-189 |
| URL of paper |
| | http://www.mes-conference.ru/data/year2021/pdf/D031.pdf |
