Analysis of Common-Mode Isolation on Transformer Based Balun

Graciele Batistell; Sina Mortezazadeh Mahani; Suchendranath Popuri; Ajinkya Kale; Johannes Sturm; Wolfgang Bösch

doi:10.1109/Austrochip.2019.00024

Analysis of Common-Mode Isolation on Transformer Based Balun

Graciele Batistell, Sina Mortezazadeh Mahani, Suchendranath Popuri, Ajinkya Kale, Johannes Sturm, Wolfgang Bösch

Frontend Integr.Circuits&Systems (FEIC)

Research output: Conference proceeding/Chapter in Book/Report/ › Conference Paper › peer-review

Abstract

This paper presents the circuit analysis of a transformer based balun with emphasis on the improvement of Common-Mode Isolation (CMI). Critical parameters are identified based on the initial analysis of the transformer equivalent circuit. Additionally, the influence of the transformers load impedance and the use of Center-Tap (CT) on CMI enhancement are presented. EM simulations of two transformers, a stacked and an interleaved version, designed in 65 nm CMOS technology are presented. The CMI performance of both the transformers is compared to the proposed circuit model and the effect of layout and geometry is also analyzed. Finally, guidelines are presented for the design of transformer based baluns with improved CMI performance.

Original language	English
Title of host publication	2019 Austrochip Workshop on Microelectronics (Austrochip)
Pages	71-75
Number of pages	5
DOIs	https://doi.org/10.1109/Austrochip.2019.00024
Publication status	Published - 24 Oct 2019
Event	2019 Austrochip Workshop on Microelectronics (Austrochip) - Vienna, Austria Duration: 24 Oct 2019 → 24 Oct 2019

Conference

Conference	2019 Austrochip Workshop on Microelectronics (Austrochip)
Period	24/10/19 → 24/10/19

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10.1109/Austrochip.2019.00024

https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=8904750

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@inproceedings{39cdd2a4056340479f6bc2ea374941f6,

title = "Analysis of Common-Mode Isolation on Transformer Based Balun",

abstract = "This paper presents the circuit analysis of a transformer based balun with emphasis on the improvement of Common-Mode Isolation (CMI). Critical parameters are identified based on the initial analysis of the transformer equivalent circuit. Additionally, the influence of the transformers load impedance and the use of Center-Tap (CT) on CMI enhancement are presented. EM simulations of two transformers, a stacked and an interleaved version, designed in 65 nm CMOS technology are presented. The CMI performance of both the transformers is compared to the proposed circuit model and the effect of layout and geometry is also analyzed. Finally, guidelines are presented for the design of transformer based baluns with improved CMI performance.",

author = "Graciele Batistell and Mahani, {Sina Mortezazadeh} and Suchendranath Popuri and Ajinkya Kale and Johannes Sturm and Wolfgang B{\"o}sch",

year = "2019",

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doi = "10.1109/Austrochip.2019.00024",

language = "English",

isbn = "978-1-7281-1954-0",

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T1 - Analysis of Common-Mode Isolation on Transformer Based Balun

AU - Batistell, Graciele

AU - Mahani, Sina Mortezazadeh

AU - Popuri, Suchendranath

AU - Kale, Ajinkya

AU - Sturm, Johannes

AU - Bösch, Wolfgang

PY - 2019/10/24

Y1 - 2019/10/24

N2 - This paper presents the circuit analysis of a transformer based balun with emphasis on the improvement of Common-Mode Isolation (CMI). Critical parameters are identified based on the initial analysis of the transformer equivalent circuit. Additionally, the influence of the transformers load impedance and the use of Center-Tap (CT) on CMI enhancement are presented. EM simulations of two transformers, a stacked and an interleaved version, designed in 65 nm CMOS technology are presented. The CMI performance of both the transformers is compared to the proposed circuit model and the effect of layout and geometry is also analyzed. Finally, guidelines are presented for the design of transformer based baluns with improved CMI performance.

AB - This paper presents the circuit analysis of a transformer based balun with emphasis on the improvement of Common-Mode Isolation (CMI). Critical parameters are identified based on the initial analysis of the transformer equivalent circuit. Additionally, the influence of the transformers load impedance and the use of Center-Tap (CT) on CMI enhancement are presented. EM simulations of two transformers, a stacked and an interleaved version, designed in 65 nm CMOS technology are presented. The CMI performance of both the transformers is compared to the proposed circuit model and the effect of layout and geometry is also analyzed. Finally, guidelines are presented for the design of transformer based baluns with improved CMI performance.

UR - https://ieeexplore.ieee.org/document/8904750/

U2 - 10.1109/Austrochip.2019.00024

DO - 10.1109/Austrochip.2019.00024

M3 - Conference Paper

SN - 978-1-7281-1954-0

SP - 71

EP - 75

BT - 2019 Austrochip Workshop on Microelectronics (Austrochip)

T2 - 2019 Austrochip Workshop on Microelectronics (Austrochip)

Y2 - 24 October 2019 through 24 October 2019

ER -

Analysis of Common-Mode Isolation on Transformer Based Balun

Abstract

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